<PAGE>

                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549

                         ------------------------------

                                    FORM 10-Q

      [X] QUARTERLY REPORT PURSUANT TO SECTION 13 or 15(d) OF THE
                         SECURITIES EXCHANGE ACT OF 1934

                    For the quarter ended September 30, 2004

      [ ] TRANSITION REPORT PURSUANT TO SECTION 13 or 15(d) OF THE
                         SECURITIES EXCHANGE ACT OF 1934

                        Commission File Number 333-33572
                                 --------------

                        DIAMOND TRIUMPH AUTO GLASS, INC.
             (Exact name of registrant as specified in its charter)

                 DELAWARE                                  23-2758853
      (State or other jurisdiction of                   (I.R.S. Employer
      incorporation or organization)                    Identification No.)

                220 DIVISION STREET, KINGSTON, PENNSYLVANIA 18704
          (Address, including zip code of principal executive offices)

                                 (570) 287-9915
                     (Telephone number, including area code)

      Indicate by check mark whether the registrant (1) has filed all reports to
be filed by Section 13 or Section 15(d) of the Securities and Exchange Act of
1934 during the preceding 12 months (or for such shorter period that the
registrant was required to file such reports), and (2) has been subject to such
filing requirements for the past 90 days. Yes [X] No [ ]

      Indicate by check mark whether the Registrant is an accelerated filer (as
defined in Exchange Act Rule 12b-2 Yes [ ] No [X]

      As of November 15, 2004, there were 1,011,366 shares outstanding of
Diamond's Common Stock ($.01 par value) and 35,000 shares outstanding of
Diamond's Series A 12% Senior Cumulative Preferred Stock ($.01 par value).

<PAGE>

                        DIAMOND TRIUMPH AUTO GLASS, INC.
                                    FORM 10-Q
                    FOR THE QUARTER ENDED SEPTEMBER 30, 2004

                                      INDEX

<TABLE>
<CAPTION>
                                                                                                Page No.
                                                                                                --------
<S>                                                                                             <C>
Part I.     Financial Information

            Item 1.     Consolidated Financial Statements

                        Condensed Consolidated Balance Sheets -
                                September 30, 2004 (unaudited) and December 31, 2003........     3

                        Condensed Consolidated Statements of Operations (unaudited) -
                                Three Months Ended September 30, 2004 and 2003..............     4

                        Condensed Consolidated Statements of Operations (unaudited) -
                                Nine Months Ended September 30, 2004 and 2003...............     5

                        Condensed Consolidated Statements of Cash Flows (unaudited) -
                                Nine Months Ended September 30, 2004 and 2003...............     6

                        Notes to Unaudited Condensed Consolidated Financial Statements......     7

            Item 2.     Management's Discussion and Analysis of Financial
                        Condition and Results of Operations.................................    11

            Item 3.     Quantitative and Qualitative Disclosures about
                        Market Risk.........................................................    17

            Item 4.     Controls and Procedures.............................................    18

Part II.  Other Information

            Item 1.     Legal Proceedings...................................................    19

            Item 6.     Exhibits and Reports on Form 8-K....................................    20

                        Signature...........................................................    21
</TABLE>

                                       2
<PAGE>

                                     PART I
                              FINANCIAL INFORMATION

ITEM 1. CONSOLIDATED FINANCIAL STATEMENTS

                 DIAMOND TRIUMPH AUTO GLASS, INC. AND SUBSIDIARY
                      CONDENSED CONSOLIDATED BALANCE SHEETS
                 (Dollars in Thousands except per share amounts)

<TABLE>
<CAPTION>
                                                                                September 30, 2004    December 31, 2003
                                                                                ------------------    ------------------
                                                                                   (Unaudited)
<S>                                                                             <C>                   <C>
ASSETS
Current assets:
  Cash and cash equivalents                                                         $   3,832             $      35
  Accounts receivable, net                                                             11,663                10,353
  Other receivables                                                                       463                   402
  Inventories                                                                          12,339                13,493
  Prepaid expenses                                                                      1,783                 1,783
  Deferred income taxes                                                                 3,038                 3,038
                                                                                    ---------             ---------
Total current assets                                                                   33,118                29,104
                                                                                    ---------             ---------

Equipment and leasehold improvements, net                                               5,350                 6,547

Deferred loan costs and senior notes discount, net                                      2,209                 2,706
Deferred income taxes                                                                  36,473                36,473
Other assets                                                                              528                   502

                                                                                    ---------             ---------
Total assets                                                                        $  77,678             $  75,332
                                                                                    =========             =========

LIABILITIES AND STOCKHOLDERS' EQUITY (DEFICIT)
Current liabilities:
  Accounts payable                                                                  $  12,044             $  12,492
  Accrued expenses:
     Payroll and related items                                                          4,287                 4,341
     Accrued interest                                                                   3,700                 1,859
     Accrued income taxes                                                                 461                   461
     Other                                                                              2,014                 1,141
                                                                                    ---------             ---------
 Total accrued expenses                                                                10,462                 7,802
                                                                                    ---------             ---------

Total current liabilities                                                              22,506                20,294
                                                                                    ---------             ---------

Long-term debt:
  Senior notes                                                                         79,758                79,758
  Credit facility                                                                           -                 2,500
                                                                                    ---------             ---------
Total long-term debt                                                                   79,758                82,258
                                                                                    ---------             ---------

   Total liabilities                                                                  102,264               102,552
                                                                                    ---------             ---------

Series A 12% senior redeemable cumulative preferred stock - par value $0.01 per
     share; authorized 100,000 shares; issued and outstanding
     35,000 shares in 2004 and 2003, at liquidation preference value                   75,481                69,076
                                                                                    ---------             ---------
Stockholders' equity (deficit):
Common stock, 2004 and 2003 par value $0.01 per share; authorized
     1,100,000 shares; issued and outstanding 1,026,366 shares in 2004 and 2003            10                    10
Additional paid-in capital                                                             20,839                27,244
Deferred compensation                                                                    (176)                 (255)
Retained earnings (accumulated deficit)                                              (120,440)             (122,995)
Common stock in treasury, at cost, 15,000 shares in 2004 and 2003                        (300)                 (300)
                                                                                    ---------             ---------
   Total stockholders' equity (deficit)                                              (100,067)              (96,296)

                                                                                    ---------             ---------
Total liabilities and stockholders' equity (deficit)                                $  77,678             $  75,332
                                                                                    =========             =========
</TABLE>

            See notes to condensed consolidated financial statements

                                       3
<PAGE>

                 DIAMOND TRIUMPH AUTO GLASS, INC. AND SUBSIDIARY
           CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (UNAUDITED)
                 (Dollars in Thousands except per share amounts)

<TABLE>
<CAPTION>
                                          Three Months Ended     Three Months Ended
                                          September 30, 2004     September 30, 2003
                                          ------------------     ------------------
<S>                                             <C>                  <C>
Net sales                                       $ 53,546             $ 57,090
Cost of sales                                     15,179               17,509
                                                --------             --------
Gross profit                                      38,367               39,581

Operating expenses                                35,997               37,117
                                                --------             --------

Income from operations                             2,370                2,464

Other (income) expense:
     Interest income                                  (5)                   0
     Interest expense                              2,034                2,037
                                                --------             --------
                                                   2,029                2,037
                                                --------             --------

Income before provision for income taxes             341                  427

Provision (benefit) for income taxes              (1,839)                 167
                                                --------             --------

Net Income                                         2,180                  260

Preferred stock dividends                          2,198                1,954
                                                --------             --------

Net loss applicable to common stockholders      ($    18)            ($ 1,694)
                                                ========             ========
</TABLE>

            See notes to condensed consolidated financial statements

                                       4
<PAGE>

                 DIAMOND TRIUMPH AUTO GLASS, INC. AND SUBSIDIARY
           CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (UNAUDITED)
                 (Dollars in Thousands except per share amounts)

<TABLE>
<CAPTION>
                                          Nine Months Ended      Nine Months Ended
                                          September 30, 2004     September 30, 2003
                                          ------------------     ------------------
<S>                                          <C>                     <C>
Net sales                                    $ 163,852               $ 171,013
Cost of sales                                   46,648                  52,282
                                             ---------               ---------
Gross profit                                   117,204                 118,731

Operating expenses                             108,470                 108,004
                                             ---------               ---------

Income from operations                           8,734                  10,727

Other (income) expense:
     Interest income                                (5)                    (21)
     Interest expense                            6,183                   5,615
                                             ---------               ---------
                                                 6,178                   5,594
                                             ---------               ---------

Income before provision for income taxes         2,556                   5,133

Provision for income taxes                           0                   2,002

                                             ---------               ---------
Net income                                       2,556                   3,131

Preferred stock dividends                        6,405                   5,691

                                             ---------               ---------
Net loss applicable to common stockholders   ($  3,849)              ($  2,560)
                                             =========               =========
</TABLE>

            See notes to condensed consolidated financial statements

                                       5
<PAGE>

                 DIAMOND TRIUMPH AUTO GLASS, INC. AND SUBSIDIARY
           CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (UNAUDITED)
                 (Dollars in Thousands except per share amounts)

<TABLE>
<CAPTION>
                                                       Nine Months Ended        Nine Months Ended
                                                       September 30, 2004       September 30, 2003
                                                       ------------------       ------------------
<S>                                                    <C>                      <C>
OPERATING ACTIVITIES
    Net cash provided by operating activities              $  6,845                   $ 12,099
                                                           --------                   --------
INVESTING ACTIVITIES
    Capital expenditures                                       (642)                      (981)
    Proceeds from sale of equipment                             120                         60
    Decrease in other assets                                    (26)                        78
                                                           --------                   --------
Net cash used in investing activities                          (548)                      (843)
                                                           --------                   --------
FINANCING ACTIVITIES
    Payment for redemption of senior notes                        -                    (11,590)
    Net Proceeds from credit facility                        17,250                      6,000
    Payments on credit facility                             (19,750)                    (6,000)
                                                           --------                   --------
Net cash used in financing activities                        (2,500)                   (11,590)
                                                           --------                   --------

NET INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS          3,797                       (334)

Cash and cash equivalents, beginning of period                   35                      2,094
                                                           --------                   --------
Cash and cash equivalents, end of period                   $  3,832                   $  1,760
                                                           ========                   ========
</TABLE>

            See notes to condensed consolidated financial statements

                                       6
<PAGE>

                 DIAMOND TRIUMPH AUTO GLASS, INC. AND SUBSIDIARY
        NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (Unaudited)
                 (Dollars in thousands except per share amounts)

NOTE 1. SIGNIFICANT ACCOUNTING POLICIES

      These interim financial statements are unaudited but, in the opinion of
      management, reflect all adjustments (consisting only of normal recurring
      adjustments) necessary to present fairly the data for the interim periods
      presented. The interim financial statements should be read in conjunction
      with the audited financial statements and notes thereto contained in
      Diamond's Annual Report on Form 10-K for the year ended December 31, 2003.
      Diamond's results for interim periods are not normally indicative of
      results to be expected for the fiscal year. Weather has historically
      affected Diamond's sales and net income, with severe weather generating
      increased sales and net income, and mild weather resulting in lower sales
      and net income. In addition, Diamond's business is somewhat seasonal, with
      the first and fourth calendar quarters traditionally its slowest periods
      of activity.

      Preferred Stock:

      At September 30, 2004 and December 31, 2003, the liquidation value of the
      Preferred Stock recorded on Diamond's Balance Sheet was $75,481 and
      $69,076, respectively, which includes dividends of $40,481 and $34,076,
      respectively.

      Borrowings:

      Credit Facility - On March 27, 2000, Diamond entered into a revolving
      credit facility (the "Credit Facility"), which had an initial term of four
      years and provides for revolving advances of up to the lesser of: (1)
      $25,000; (2) the sum of 85% of Diamond's Eligible Accounts Receivable (as
      defined in the Credit Facility) plus 85% of Diamond's Eligible Inventory
      (as defined in the Credit Facility), less certain reserves; or (3) an
      amount equal to 1.5 times Diamond's EBITDA (as defined in the Credit
      Facility) for the prior twelve months. On November 26, 2003, Diamond
      amended the Credit Facility, which, among other things extended the term
      for an additional three year period through March 27, 2007. A portion of
      the Credit Facility, not to exceed $10,000, is available for the issuance
      of letters of credit, which generally have an initial term of one year or
      less. Diamond had $6,141 in outstanding letters of credit at September 30,
      2004. Borrowings under the Credit Facility bear interest, at Diamond's
      discretion, at either the JP Morgan Chase Manhattan Bank Rate (as defined
      in the Credit Facility) or LIBOR, plus a margin of 0.50% for the JP Morgan
      Chase Manhattan Rate and 2.25% for the LIBOR Rate. In addition, a
      commitment fee of 0.25% is charged against any unused balance of the
      Credit Facility. Interest rates are subject to increases or reductions
      based upon Diamond meeting certain EBITDA levels. The proceeds of the
      Credit Facility are available for working capital requirements and for
      general corporate purposes. The Credit Facility is secured by first
      priority security interests in all of Diamond's tangible and intangible
      assets. In addition, the Credit Facility contains certain restrictive
      covenants including, among other things, the maintenance of a minimum
      EBITDA level as of September 30, 2004 of $10,500 for the prior twelve
      months (the "EBITDA Covenant"), as well as restrictions on additional
      indebtedness, dividends and certain other significant transactions.
      Diamond was not in compliance with the EBITDA Covenant for the fiscal
      period ended September 30, 2004, as Diamond's EBITDA level for the prior
      twelve months was approximately $9.6 million. Diamond obtained a waiver as
      of September 30, 2004 with respect to the EBITDA Covenant, and amended the
      Credit Facility with respect to the EBITDA levels required to be
      maintained through December 31, 2004. Diamond had no outstanding balance
      under the Credit Facility at September 30, 2004.

                                       7
<PAGE>

                 DIAMOND TRIUMPH AUTO GLASS, INC. AND SUBSIDIARY
        NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (Unaudited)
                 (Dollars in thousands except per share amounts)

      Stock Option Plan:

      In September 1998, the Board of Directors and stockholders of Diamond
      approved and adopted the Diamond Triumph Auto Glass 1998 Stock Option Plan
      (the "1998 Plan"). The 1998 Plan provides for the issuance of a total of
      30,000 authorized and un-issued shares of common stock. As of September
      30, 2004, the Board of Directors had granted 22,175 options to key
      employees of Diamond with an exercise price of $20.00 per share, which
      approximated fair value at the date of grant. The options vest evenly over
      five years and may not be exercised until the earlier of (a) 90 days after
      Diamond's Common Stock has become publicly traded or (b) 91 days prior to
      the tenth anniversary of the date of the grant. The 1998 Plan expires in
      September 2008. 500 options were granted in July 2003 and no options were
      granted during the nine months ended September 30, 2004.

      Diamond accounts for its stock option plan under Accounting Principles
      Board Opinion ("APB") No. 25, "Accounting for Stock Issued to Employees,"
      under which no compensation cost has been recognized for options issued to
      employees at fair market value on the date of grant. In 1995, the
      Financial Accounting Standards Board ("FASB") issued Statement of
      Financial Accounting Standards ("SFAS") No. 123, "Accounting for
      Stock-Based Compensation." SFAS No. 123 established a fair value based
      method of accounting for stock-based compensation plans. SFAS No. 123
      requires that a company's financial statements include certain disclosures
      about stock-based employee compensation arrangements regardless of the
      method used to account for the plan.

      As allowed by SFAS No. 123, Diamond has elected to continue to account for
      its employee stock-based compensation plans under APB Opinion No. 25, and
      adopted only the disclosure requirements of SFAS No. 123. Had compensation
      cost for Diamond's common stock options been determined based upon the
      fair value of the options at the date of grant, as prescribed under SFAS
      No. 123, as amended by SFAS No. 148, "Accounting for Stock-Based
      Compensation - Transition and Disclosure", Diamond's net income (loss)
      would have been reduced to the following pro forma amounts:

<TABLE>
<CAPTION>
                                                       NINE MONTHS ENDED SEPTEMBER 30,     THREE MONTHS ENDED SEPTEMBER 30,
                                                       -------------------------------     --------------------------------
                                                           2004           2003                   2004             2003
                                                       -----------      ---------          -------------         ---------
<S>                                                    <C>              <C>                <C>                   <C>
Net Income
   As reported                                            $  2,556      $   3,131              $   2,180         $   260
   Add stock-based employee compensation expense
        included in reported net income, net of tax             13             48                      4              16
   Deduct total stock-based employee compensation
        expense determined under fair-value-based
        method for all rewards, net of tax                     (16)           (55)                    (4)            (18)
                                                          --------      ---------              ---------         -------
   Pro forma                                              $  2,553      $   3,124              $   2,180         $   258
                                                          --------      ---------              ---------         -------
</TABLE>

      The fair value of the options granted in 2003 was $2.63 using the
      Black-Scholes option-pricing model with the following assumptions:
      risk-free interest rate of 2.82%, volatility of 0% and expected dividend
      yield of 0%.

                                       8
<PAGE>

                 DIAMOND TRIUMPH AUTO GLASS, INC. AND SUBSIDIARY
        NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (Unaudited)
                 (Dollars in thousands except per share amounts)

NOTE 2. RECENT ACCOUNTING PRONOUNCEMENTS

      In December 2002, the FASB issued Interpretation No. 46, Consolidation of
      Variable Interest Entities ("FIN 46"). The Interpretation requires that a
      variable interest entity be consolidated by a company if that company is
      subject to a majority of the risk of loss from the variable interest
      entity's activities or entitled to receive a majority of the entity's
      residual returns or both. The consolidation requirements of FIN 46 are
      effective for all variable interest entities created or acquired after
      January 31, 2003. In December 2003, the Financial Accounting Standards
      Board issued a revision to FIN 46 referred to as Interpretation No. 46
      (R). Among other provisions, the revision extended the adoption date of
      FIN 46 (R) to the first quarter of 2004 for variable interest entities
      created prior to February 1, 2003. The adoption of this interpretation had
      no impact on Diamond's consolidated financial statements.

NOTE 3. EXECUTIVE COMPENSATION

      On June 1, 2002 (the "Grant Date"), Norman Harris (the "Executive") and
      Diamond entered into a Restricted Stock Agreement (the "Agreement")
      pursuant to which the Executive purchased from Diamond 26,366 shares (the
      "Restricted Shares") of Diamond's common stock, par value $0.01 per share,
      for nominal consideration. The Agreement generally restricts the sale or
      transferability of shares of Common Stock held by the Executive before the
      Restrictions (as defined in the Agreement) have lapsed. The Executive has
      all rights and privileges of a stockholder with respect to the Restricted
      Shares, including voting rights and the right to receive dividends paid
      with respect to the Restricted Shares. Generally, the Restricted Shares
      vest and the Restrictions lapse: (i) with respect to 20% of the Restricted
      Shares on the Grant Date; and (ii) with respect to 20% of the Restricted
      Shares on each subsequent anniversary of the Grant Date until the
      Restricted Shares are fully vested. Compensation expense, unearned
      restricted stock compensation, and proceeds from common stock issued have
      been recognized based on the vesting periods and an estimated fair market
      value of $20 per share at the time of the Agreement.

NOTE 4. LEGAL PROCEEDINGS

      On May 2, 2002, Diamond filed an amended Complaint with the United States
      District Court, Middle District of Pennsylvania against Safelite Glass
      Corporation (the "Defendant"). Diamond alleges, among other things, that
      the Defendant's conduct as (i) an operator of national telephone call
      centers which takes first notice of loss calls from insureds of several of
      the largest automobile insurers in the United States (the "Insurers");
      (ii) a provider of various claims processing services to the Insurers as a
      third-party administrator; and (iii) an operator of a network of retail
      repair and replacement facilities who perform work for the Insurers as
      Safelite affiliates, violated certain federal and state laws and gave rise
      to other legal and equitable claims against the Defendant. Diamond alleges
      that the Defendant engaged in various practices designed to divert
      customers away from Diamond to the Defendant, and that Diamond has
      suffered damages as a result of this conduct in an amount to be determined
      at trial.

      On November 1, 2002, the Defendant filed a counter claim against Diamond,
      alleging, among other things, that Diamond has engaged and continues to
      engage in publishing certain false and defamatory statements about the
      Defendant to automobile insurance companies that are the Defendant's
      clients. Defendant alleges that this alleged conduct has injured the
      Defendant's goodwill and business reputation with its insurance clients
      and in the auto glass repair and replacement industry. Among other things,
      the Defendant is seeking damages in an amount to be determined at trial.

                                       9
<PAGE>

                 DIAMOND TRIUMPH AUTO GLASS, INC. AND SUBSIDIARY
        NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (Unaudited)
                 (Dollars in thousands except per share amounts)

      On February 3, 2003, Delbert Rice and Kenneth E. Springfield, Jr., on
      behalf of themselves and all others similarly situated (the "Plaintiffs"),
      filed a class action Complaint in the Court of Common Pleas of Luzerne
      County, Pennsylvania against Diamond. Plaintiffs allege, among other
      things, Diamond violated certain sections of the Pennsylvania Unfair Trade
      Practices and Consumer Protection Law and common law. Plaintiffs allege
      that this alleged conduct has caused monetary damages to Plaintiffs. Among
      other things, Plaintiffs are seeking damages in an amount to be determined
      at trial. Diamond believes Plaintiffs' allegations are without merit and
      plans to vigorously contest this complaint.

      Diamond is involved in various claims and legal actions arising in the
      ordinary course of business. In the opinion of management, the ultimate
      disposition of these matters will not have a material adverse effect on
      Diamond's financial condition, results of operations or financial
      position. No amounts have been recorded in the consolidated financial
      statements for any of these legal actions.

NOTE 5. INCOME TAXES

      As disclosed in the Company's 10-K for the year ended December 31, 2003,
      the Internal Revenue Service has concluded its audit of the tax periods
      ended December 31, 1998, 1999, and 2000. As a result of this audit, the
      Internal Revenue Service issued a notice of proposed adjustments on
      February 20, 2002, which included a disallowance of the tax-deductible
      goodwill resulting from Diamond's March 31, 1998 Recapitalization
      Transaction (as defined in Diamond's 10-K for the year ended December 31,
      2003). The Internal Revenue Service has asserted that the Recapitalization
      Transaction did not qualify as a stock purchase, and accordingly, that the
      election under Internal Revenue Code Section 338(h)(10) was not valid. As
      a result, if the IRS position is sustained, tax-deductible goodwill would
      not be recognizable by Diamond.

      The proposed adjustments by the Internal Revenue Service would result in
      $7.6 million of federal tax deficiencies owed by Diamond for the period
      December 31, 1998 through December 31, 2003, plus possible interest and
      penalties and any resultant increases in current state tax expense for
      this period. Additionally, the deferred tax asset established in 1998
      would be eliminated, as well as net operating loss carryforwards from
      previous deductions of the tax goodwill. The carrying amount of these
      assets at December 31, 2003 was approximately $37.0 million.

      Diamond strongly believes that the Recapitalization Transaction is
      properly accounted for, and has appealed the Internal Revenue Service's
      proposed adjustment. If such appeal is ultimately unsuccessful, the
      Internal Revenue Service's proposed adjustment would have a material
      adverse affect on Diamond's liquidity, cash flows, balance sheet and
      results of operations.

NOTE 6. CONTINGENT GUARANTEED COMMITMENTS

      Diamond leases certain vehicles under operating leases having lease terms
      of 367 days. The leases have monthly renewal options. The vehicle lease
      agreement provides for terminal lease payments for guaranteed residual
      values reduced by actual proceeds from the vehicle sale in the event the
      lease is not renewed. The contingent guaranteed residual value payment
      commitment was $11.4 million at September 30, 2004. No amounts have been
      accrued related to this contingent obligation because Diamond does not
      believe it is probable that the payments will be required.

                                       10
<PAGE>

ITEM 2. MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS
        OF OPERATIONS

      OVERVIEW

      Diamond is a leading provider of automotive glass replacement and repair
      services in the United States. At September 30, 2004, Diamond operated a
      network of 251 automotive glass service centers, approximately 1,100
      mobile installation vehicles and six distribution centers in 45 states.
      Diamond serves all of its customers' automotive glass replacement and
      repair needs, offering windshields, tempered glass and other related
      products. Sales, net income and EBITDA for the nine months ended September
      30, 2004 were $163.9 million, $2.5 million and $10.4 million,
      respectively. Sales, net income and EBITDA for the three months ended
      September 30, 2004 were $53.5 million, $2.2 million and $2.9 million,
      respectively.

      Weather has historically affected Diamond's sales and net income, with
      severe weather generating increased sales and net income and mild weather
      resulting in lower sales and net income. In addition, Diamond's business
      is somewhat seasonal, with the first and fourth quarters traditionally its
      slowest period of activity. Diamond believes these seasonal trends will
      continue for the foreseeable future.

      The price of replacement automotive glass is based in part on list prices
      developed by the National Auto Glass Specification ("NAGS"), an
      independent third party. Prices charged by participants in the automotive
      glass replacement industry are independently determined using varying
      percentage discounts from the NAGS price list. The impact of NAGS price
      changes on Diamond's financial results depends on the level of discounts
      Diamond grants to its customers and the level of discounts that Diamond
      can obtain from its glass suppliers. Effective January 1, 1999, NAGS
      significantly modified its published list prices in order to bring actual
      prices more in line with published list prices. Although NAGS has not
      materially modified its published list prices since January 1, 1999, NAGS
      has made periodic modifications to its published list prices subsequent to
      that date, including a series of price changes effective January 2003 that
      resulted in a 4% to 5% decrease in overall list prices. NAGS modified its
      published list prices in January 2004 which resulted in moderate decreases
      in overall list prices.

      Diamond believes that, due to its sole focus on automotive glass
      replacement and repair, it has one of the lowest cost structures in the
      automotive glass replacement and repair industry. Diamond's low cost
      structure enables it to serve all markets of the industry, which is
      comprised of: (1) individual consumers; (2) commercial customers,
      including commercial fleet leasing companies, rental car companies, car
      dealerships, body shops, utilities and government agencies; and (3)
      insurance customers, including referrals from local agents, claims offices
      and centralized call centers. While the largest participant in the
      industry primarily focuses on servicing automotive glass insurance claims
      (including providing related insurance claims processing services) and
      also manufactures automotive glass, Diamond has strategically positioned
      itself solely as a provider of automotive glass replacement and repair
      services to a balanced mix of individual, commercial and insurance
      customers.

                                       11
<PAGE>

      RESULTS OF OPERATIONS

      The following table summarizes Diamond's historical results of operations
      and historical results of operations as a percentage of sales for the nine
      and three months ended September 30, 2004 and 2003.

<TABLE>
<CAPTION>
                                               NINE MONTHS ENDED SEPTEMBER 30,       THREE MONTHS ENDED SEPTEMBER 30,
                                             -----------------------------------    ----------------------------------
                                                  2004                2003              2004               2003
                                             ---------------    ----------------    -------------     ----------------
                                               $         %        $          %        $       %        $           %
                                             -----     -----    -----      -----    -----   -----     ----       -----
                                                    (DOLLARS IN MILLIONS)                  (DOLLARS IN MILLIONS)
<S>                                          <C>       <C>      <C>        <C>      <C>     <C>       <C>        <C>
Net Sales................................    163.9     100.0    171.0      100.0     53.6   100.0     57.1       100.0
Cost of Sales............................     46.7      28.5     52.3       30.6     15.2    28.4     17.5        30.6
                                             -----     -----    -----      -----    -----   -----     ----       -----
Gross Profit.............................    117.2      71.5    118.7       69.4     38.4    71.6     39.6        69.4
Operating Expenses.......................    108.5      66.2    108.0       63.2     36.0    67.2     37.1        65.0
                                             -----     -----    -----      -----    -----   -----     ----       -----
Income From Operations...................      8.7       5.3     10.7        6.3      2.4     4.5      2.5         4.4

Interest Income..........................     (0.0)     (0.0)     0.0        0.0     (0.0)   (0.0)     0.0         0.0
Interest Expense.........................      6.2       3.8      5.6        3.3      2.0     3.7      2.0         3.5
                                             -----     -----    -----      -----    -----   -----     ----       -----
                                               6.2       3.8      5.6        3.3      2.0     3.7      2.0         3.5
                                             -----     -----    -----      -----    -----   -----     ----       -----

Income before provision for income taxes.      2.5       1.5      5.1        3.0      0.4     0.7      0.5         0.9
Provision (benefit) for income taxes.....        -         -      2.0        1.2     (1.8)   (3.4)     0.2         0.4
                                             -----     -----    -----      -----    -----   -----     ----       -----
Net income...............................      2.5       1.5      3.1        1.8      2.2     4.1      0.3         0.5
                                             =====     =====    =====      =====    =====   =====     ====       =====

EBITDA (1)                                    10.4       6.3     12.8        7.5      2.9     5.4      3.1         5.4
</TABLE>

      (1)   EBITDA represents net income before interest, taxes, depreciation
            and amortization. EBITDA and the related ratios presented in this
            table are measures of Diamond's performance that are not required
            by, or presented in accordance with, GAAP. EBITDA is not a
            measurement of Diamond's financial performance under GAAP and should
            not be considered an alternative to net income, operating income or
            any other performance measures derived in accordance with GAAP or as
            an alternative to cash flow from operating activities as a measure
            of our liquidity.

            Diamond presents EBITDA because it considers it an important
            supplemental measure of its performance and believes it is
            frequently used by securities analysts, investors and other
            interested parties in the evaluation of companies in its industry,
            many of which present EBITDA when reporting their results.

            Diamond believes issuers of "high yield" securities also present
            EBITDA because investors, analysts and rating agencies consider it
            useful in measuring the ability of those issuers to meet debt
            service obligations. Diamond believes EBITDA is an appropriate
            supplemental measure of debt service capacity, because cash
            expenditures on interest are, by definition, available to pay
            interest, and tax expense is inversely correlated to interest
            expense because tax expense goes down as deductible interest expense
            goes up; depreciation and amortization are non-cash charges.

                                       12
<PAGE>

            Diamond also uses EBITDA for the following purposes: (i) its
            executives' compensation plans base incentive compensation payments
            on its EBITDA performance measured against budgets; and (ii) its
            credit agreement and its indenture for its Notes use EBITDA to
            measure Diamond's compliance with covenants such as interest
            coverage and debt incurrence.

            EBITDA has limitations as an analytical tool, and should not be
            considered in isolation, or as a substitute for analysis of
            Diamond's results as reported under GAAP. Some of these limitations
            are:

            -     EBITDA does not reflect our cash expenditures, or future
                  requirements, for capital expenditures or contractual
                  commitments;

            -     EBITDA does not reflect changes in, or cash requirements for,
                  our working capital needs;

            -     EBITDA does not reflect the significant interest expense, or
                  the cash requirements necessary to service interest or
                  principal payments, on our debt;

            -     Although depreciation and amortization are non-cash charges,
                  the assets being depreciated and amortized will often have to
                  be replaced in the future, and EBITDA does not reflect any
                  cash requirements for such replacements; and

            -     Other companies in Diamond's industry may calculate EBITDA
                  differently than Diamond does, limiting its usefulness as a
                  comparative measure.

            Because of these limitations, EBITDA should not be considered as a
            measure of discretionary cash available to Diamond to invest in the
            growth of its business. Diamond compensates for these limitations by
            relying primarily on its GAAP results and using EBITDA only
            supplementally. See the Statements of Cash Flows included in our
            financial statements.

            Reconciliation of EBITDA to net income follows for the periods
            indicated:

<TABLE>
<CAPTION>
                                           Nine Months Ended       Three Months Ended
                                              September 30,           September 30,
                                         ---------------------   ----------------------
                                          2004        2003         2004         2003
                                         ------     ----------   -------      ---------
                                         (dollars in millions)   (dollars in millions)
<S>                                      <C>        <C>          <C>          <C>
Net income.....................          $  2.5     $   3.1      $   2.2      $    .3
Interest expense...............             6.2         5.6          2.0          2.0
Depreciation and amortization..             1.7         2.1           .5           .6
Provision for income taxes.....               0         2.0         (1.8)          .2
                                         ------     -------      -------      -------
     EBITDA....................          $ 10.4     $  12.8      $   2.9      $   3.1
                                         ======     =======      =======      =======
</TABLE>

      NINE MONTHS ENDED SEPTEMBER 30, 2004 COMPARED TO NINE MONTHS ENDED
      SEPTEMBER 30, 2003

                  Net Sales. Net sales for the nine-month period ended September
      30, 2004 decreased 4.2% to $163.9 million from $171.0 million as compared
      to the nine-month period ended September 30, 2003. Installation units sold
      through September 30, 2004 decreased 2.6% compared to the nine-month
      period ended September 30, 2003. Diamond's revenue per installation unit
      for the nine-month period ended September 30, 2004 was 2.1% below the
      revenue per installation unit for the nine-month period ended September
      30, 2003. The decrease in installation units sold is primarily due to
      weaker industry demand. The decrease in revenue per installation unit is
      primarily due to pricing pressures experienced throughout

                                       13
<PAGE>

      the industry. The decrease in sales is due to the decrease in installation
      units sold and the decrease in revenue per installation units, as
      discussed above.

                  Gross Profit. Gross profit was $117.2 million for the nine
      months ended September 30, 2004 and $118.7 million for the nine months
      ended September 30, 2003. Gross profit increased as a percentage of sales
      to 71.5% for the nine months ended September 30, 2004 from 69.4% for the
      nine months ended September 30, 2003. The decrease in gross profit is due
      to a decrease in net sales as discussed above. The increase in gross
      profit percentage is primarily due to decreased product costs, which is
      due to the continued leveraging of Diamond's purchasing power and to
      enhanced inventory management as a result of increased system
      functionality from our upgraded MIS platform.

                  Operating Expenses. Operating expenses increased by $0.5
      million or 0.4% to $108.5 million during the nine-month period ended
      September 30, 2004 from $108.0 million for the nine-month period ended
      September 30, 2003. The increase in operating expenses was due to an
      increase in wages and wage related expenses primarily due to wage rate
      pressures at the service center level. These increases were partially
      offset by decreases in wages as a result of service center consolidations.
      Vehicle lease expense also increased due to the continued replacement of
      owned vehicles with leased vehicles, and accelerated amortization of
      leased vehicle lives in order to more closely align our lease obligations
      upon termination of the lease with expected vehicle market values. The
      increase in operating expenses was also due to an increase in vehicle gas
      due to rising prices, an increase in occupancy costs and an increase in
      health insurance cost. These increases were partially offset by decreases
      in shop maintenance expense, advertising and promotional expenses and
      vehicle maintenance expense.

                  Depreciation and amortization expense for the nine-month
      period ended September 30, 2004 decreased by $0.4 million or 19.0% to $1.7
      million from $2.1 million for the nine-month period ended September 30,
      2003. This was primarily due to decreases in depreciation expense for
      computer hardware, sales audit software, and POS software that became
      fully depreciated.

                  Income From Operations. Income from operations for the nine
      months ended September 30, 2004 decreased by $2.0 million, or 18.7%, to
      $8.7 million from $10.7 million for the nine months ended September 30,
      2003. This decrease was primarily due to decreased gross profit and
      increased operating costs discussed above.

                  Interest Expense. Interest expense for the nine months ended
      September 30, 2004 increased $0.6 million, or 10.7%, to $6.2 million from
      $5.6 million for the nine months ended September 30, 2003. The increase in
      interest expense is primarily due to the recording of a net gain of $1.1
      million from the repurchase of senior notes during the nine months ended
      September 30, 2003, which reduced interest expense for that period. There
      was no similar repurchase activity during the nine months ended September
      30, 2004. The increase for the nine months ended September 30, 2004 was
      partially offset by decreased interest expense as a direct result of the
      repurchase of $13.2 million face amount of senior notes during 2003.

                  Net Income. Net income for the nine months ended September 30,
      2004 decreased by $0.6 million to $2.5 million from $3.1 million of net
      income for the nine months ended September 30, 2003. Net income as a
      percentage of sales decreased 0.3% for the nine months ended September 30,
      2004 compared to the nine months ended September 30, 2003. The decrease in
      net income and net income margin during the nine months ended September
      30, 2004 compared to the nine months ended September 30, 2003 was
      primarily due to the decrease in gross profit, increased operating
      expenses and increased interest expense discussed above. These decreases
      were partially offset by a decrease in Diamond's effective tax rate to
      0.0% for the nine months ended September 30, 2004 compared to 39.0% for
      the nine months ended September 30, 2003.

                                       14
<PAGE>

      THREE MONTHS ENDED SEPTEMBER 30, 2004 COMPARED TO THREE MONTHS ENDED
      SEPTEMBER 30, 2003

                  Net Sales. Net sales for the three-month period ended
      September 30, 2004 decreased 6.1% to $53.6 million from $57.1 million as
      compared to the three-month period ended September 30, 2003. Installation
      units sold for the three months ended September 30, 2004 decreased 6.6%
      compared to the three months ended September 30, 2003. Diamond's revenue
      per installation unit for the three-month period ended September 30, 2004
      was flat compared to the revenue per installation unit for the three-month
      period ended September 30, 2003. The decrease in installation units sold
      is primarily due to weaker industry demand. The decrease in sales is due
      to the decrease in installation units sold.

                  Gross Profit. Gross profit was $38.4 million for the three
      months ended September 30, 2004 and $39.6 million for the three months
      ended September 30, 2003. Gross profit increased as a percentage of sales
      to 71.6% for the three months ended September 30, 2004 from 69.4% for the
      three months ended September 30, 2003. The decrease in gross profit is due
      to the decrease in sales discussed above. The increase in gross profit
      percentage is primarily due to decreased product costs, which is due to
      the continued leveraging of our purchasing power and to enhanced inventory
      management as a result of increased system functionality from our recently
      upgraded MIS platform.

                  Operating Expenses. Operating expenses decreased by $1.1
      million or 3.0% to $36.0 million during the three-month period ended
      September 30, 2004 from $37.1 million for the three-month period ended
      September 30, 2003. The decrease in operating expenses is due to a
      decrease in vehicle maintenance expense, advertising and promotional
      expense and shop maintenance expenses. These decreases were partially
      offset by an increase in operating expenses due to an increase in wages
      and wage related expenses primarily at the service center level, due to
      wage rate pressures and general wage increases and an increase in
      occupancy cost. We also experienced an increase in vehicle lease expense
      due to the continued retirement of owned vehicles that are replaced with
      leased vehicles, and accelerated amortization of leased vehicle lives in
      order to more closely align our lease obligation upon termination of the
      lease with expected vehicle market values.

                  Depreciation and amortization expense for the three-month
      period ended September 30, 2004 decreased by $0.1 million or 16.7% to $0.5
      million from $0.6 million for the three-month period ended September 30,
      2003. This was primarily due to decreases in depreciation expense for
      computer hardware, sales audit software, and POS software that became
      fully depreciated.

                  Income From Operations. Income from operations for the three
      months ended September 30, 2004 decreased by $.1 million, or 4.0%, to $2.4
      million from $2.5 million for the three months ended September 30, 2003.
      This decrease was primarily due to the decreased gross profit discussed
      above, which was partially offset by decreased operating expenses.

                  Interest Expense. Interest expense for the three months ended
      September 30, 2004 and September 30, 2003 remained flat at $2.0.

                  Net Income. Net income for the three months ended September
      30, 2004 increased by $1.9 million to $2.2 million net income from $0.3
      million net income for the three months ended September 30, 2003. Net
      income as a percentage of sales increased 3.6% for the three months ended
      September 30, 2004 compared to the three months ended September 30, 2003.
      The increase in net income and net income margin during the three months
      ended September 30, 2004 compared to the three months ended September 30,
      2003 was primarily due to a reduction in Diamond's effective tax rate to
      0.0% for the three months ended September 30, 2004 compared to 39.0% for
      the three months ended September 30, 2003. Due to the change in Diamond's
      effective tax rate, Diamond recorded a $1.8 million tax benefit during the
      three

                                       15
<PAGE>

      months ended September 30, 2004, which eliminated 100% of the provision
      for income taxes previously recorded by Diamond during calendar year 2004.

      LIQUIDITY AND CAPITAL RESOURCES

                  Diamond's need for liquidity will arise primarily from the
      interest payable on its 9-1/4% Senior Notes (the "Notes"), its Credit
      Facility and the funding of Diamond's capital expenditures and working
      capital requirements. There are no mandatory principal payments on the
      Notes prior to their maturity on April 1, 2008 and, except to the extent
      that the amount outstanding under the Credit Facility exceeds the
      borrowing base, no required payments of principal on the Credit Facility
      prior to its expiration on March 27, 2007. As discussed in Diamond's Notes
      to Consolidated Financial Statements, Note 1., Diamond was not in
      compliance with the EBITDA Covenant as of September 30, 2004 and obtained
      a waiver as of September 30, 2004 with respect to the EBITDA Covenant.
      Diamond also amended the Credit Facility to reduce the EBITDA levels
      required to be maintained through December 31, 2004. The waiver as of
      September 30, 2004 was in addition to the waiver as of March 31, 2004 that
      waived Diamond's default of the EBITDA Covenant as of March 31, 2004 and
      amended the Credit Facility with respect to the EBITDA levels through
      August 31, 2004. Diamond may from time to time repurchase Notes in the
      open market.

                  Net Cash Provided by Operating Activities. Net cash provided
      by operating activities for the nine months ended September 30, 2004
      decreased by $5.3 million to $6.8 million from $12.1 million for the nine
      months ended September 30, 2003. The decrease was primarily due to a
      decrease in Diamond's net income and related tax provision adjustment for
      the nine-month period ended September 30, 2004 as compared to the
      nine-month period ended September 30, 2003, as discussed above, and to
      changes in inventory and accounts payable balances compared to the
      nine-month period ended September 30, 2003.

                  Net Cash Used in Investing Activities. Net cash used in
      investing activities for the nine months ended September 30, 2004
      decreased $0.3 million to $0.5 million from $0.8 million for the nine
      months ended September 30, 2003. The decrease is primarily due to a
      decrease in capital expenditures.

                  Net Cash Used in Financing Activities. Net cash used in
      financing activities for the nine months ended September 30, 2004 was $2.5
      million compared to $11.6 million used in financing activities for the
      nine months ended September 30, 2003. The decrease is due to $11.6 million
      of payments for repurchase of senior notes during the nine months ended
      June 30, 2003. There were no similar transactions during the nine months
      ended September 30, 2004. This decrease was partially offset by a $2.5
      million decrease in net borrowings during the nine months ended September
      30, 2004 compared to the nine months ended September 30, 2003.

                  Capital Expenditures. Capital expenditures for the nine months
      ended September 30, 2004 were $0.6 million, as compared to $1.0 million
      for the nine months ended September 30, 2003. The decrease is due to a
      decrease in vehicle and software related expenditures, which were
      partially offset by increases in computer hardware and leasehold
      improvements.

                  Liquidity. Management believes that Diamond will have adequate
      capital resources and liquidity to satisfy its debt service obligations,
      working capital needs and capital expenditure requirements for the
      foreseeable future. Diamond's capital resources and liquidity are expected
      to be provided by Diamond's net cash provided by operating activities and
      borrowings under the Credit Facility. See " -- Notes to Condensed
      Consolidated Financial Statements - Note 5 - Income Tax" for a discussion
      of the Internal Revenue Service's proposed adjustments with respect to
      Diamond's tax treatment of its Recapitalization Transaction (as defined in
      Diamond's 10-K for the year ended December 31, 2003).

                                       16
<PAGE>

      RELATED PARTY TRANSACTIONS

      On October 21, 2004, Diamond entered into an employment agreement with
      Michael A. Sumsky, pursuant to which Mr. Sumsky agreed to serve as the
      President, Chief Financial Officer, Secretary and General Counsel of
      Diamond at an annual salary of $350,000, subject to annual review based on
      Diamond's and Mr. Sumsky's performance. The employment agreement provides
      for a term commencing on October 21, 2004 and ending on December 31, 2005.
      In addition to his annual salary, Mr. Sumsky is eligible to receive a
      bonus based upon the achievement of certain criteria. The employment
      agreement also contains various severance, non-competition,
      non-solicitation provisions, non-disclosure and assignment of inventions
      provisions.

      On October 21, 2004, Richard Rutta resigned as an employee, Co-Chairman
      and a member of the Board of Directors of Diamond. Mr. Rutta resigned to
      pursue personal endeavors, and not due to a disagreement on any matter
      relating to Diamond's operations, policies or practices. Michael A.
      Sumsky, who currently manages a portion of Diamond's retail operations,
      will assume management responsibilities for the balance of Diamond's
      retail operations, which were previously managed by Mr. Rutta.

ITEM 3 QUANTITATIVE AND QUAL1TATIVE DISCLOSURES ABOUT MARKET RISK

      Diamond has a revolving Credit Facility that provides for revolving
      advances of up to $25.0 million, and matures in March 2007. Borrowings
      under the Credit Facility bear interest, at Diamond's discretion, at
      either the JP Morgan Chase Manhattan Bank Rate (as defined in the Credit
      Facility) or LIBOR, plus a margin of 0.50% for the JP Morgan Chase
      Manhattan Rate and 2.25% for the LIBOR Rate. In addition, a commitment fee
      of 0.25% is charged against any unused balance of the Credit Facility.
      Interest rates are subject to increases or reductions based upon Diamond
      meeting certain EBITDA levels. At September 30, 2004, Diamond had no
      outstanding borrowings under the Credit Facility.

      FORWARD-LOOKING STATEMENTS

                  Readers are cautioned that there are statements contained in
      this report which are "forward-looking" statements within the meaning of
      the Private Securities Litigation Reform Act of 1995 (the "Act").
      Forward-looking statements include statements which are predictive in
      nature, which depend upon or refer to future events or conditions, which
      include words such as "expects," "anticipates," "intends," "plans,"
      "believes," "will," "estimates," or similar expressions. In addition, any
      statements concerning future financial performance (including future
      revenues, earnings or growth rates), ongoing business strategies or
      prospects, and possible future actions, which may be provided by
      management, are also forward-looking statements as defined by the Act.
      Forward-looking statements are based on current expectations and
      projections about future events and are subject to risks, uncertainties,
      and assumptions about Diamond, economic and market factors and the
      industries in which Diamond does business, among other things. These
      statements are not guarantees of future performance and Diamond has no
      specific intention to update these statements.

                  These forward-looking statements, like any forward-looking
      statements, involve risks and uncertainties that could cause actual
      results to differ materially from those projected or anticipated. The
      risks and uncertainties include the effect of overall economic and
      business conditions, the demand for Diamond's products and services,
      regulatory uncertainties, the impact of competitive products and pricing,
      changes in customers' ordering patterns and potential system
      interruptions. This list should not be construed as exhaustive. Diamond's
      annual report on Form 10-K in respect of the fiscal year ended December
      31, 2003 discusses certain of these risks and uncertainties under the
      caption "Factors Affecting Future Performance."

                                       17
<PAGE>

ITEM 4 CONTROLS AND PROCEDURES

                  Diamond maintains disclosure controls and procedures that are
      designed to ensure that information required to be disclosed in Diamond's
      Exchange Act reports is recorded, processed, summarized and reported
      within the time periods specified in the Securities and Exchange
      Commission's rules and forms and that such information is accumulated and
      communicated to Diamond's management, including its Chief Executive
      Officer and Chief Financial Officer, as appropriate, to allow for timely
      decisions regarding required disclosure. In designing and evaluating the
      disclosure controls and procedures, management recognizes that any
      controls and procedures, no matter how well designed and operated, can
      provide only reasonable assurance of achieving the desired control
      objectives, and management is required to apply its judgment in evaluating
      the cost-benefit relationship of possible controls and procedures.

                  As required by SEC Rule 13a-15(b), Diamond carried out an
      evaluation, under the supervision and with the participation of Diamond's
      management, including Diamond's Chief Executive Officer and Diamond's
      Chief Financial Officer, of the effectiveness of the design and operation
      of Diamond's disclosure controls and procedures as of the end of the
      quarter covered by this report. Based on the foregoing, Diamond's Chief
      Executive Officer and Chief Financial Officer concluded that Diamond's
      disclosure controls and procedures were effective at the reasonable
      assurance level.

                  There has been no change in Diamond's internal controls over
      financial reporting during Diamond's most recent fiscal quarter that has
      materially affected, or is reasonably likely to materially affect,
      Diamond's internal controls over financial reporting.

                                       18
<PAGE>

                                     PART II

                                OTHER INFORMATION

ITEM 1. LEGAL PROCEEDINGS

      On May 2, 2002, Diamond filed an amended Complaint with the United States
District Court, Middle District of Pennsylvania against Safelite Glass
Corporation (the "Defendant"). Diamond alleges, among other things, that the
Defendant's conduct as (i) an operator of national telephone call centers which
takes first notice of loss calls from insureds of several of the largest
automobile insurers in the United States (the "Insurers"); (ii) a provider of
various claims processing services to the Insurers as a third-party
administrator and; (iii) an operator of a network of retail repair and
replacement facilities who perform work for the Insurers as Safelite affiliates,
violated certain federal and state laws and gave rise to other legal and
equitable claims against the Defendant. Diamond alleges that the Defendant
engaged in various practices designed to divert customers away from Diamond to
the Defendant, and that Diamond has suffered damages as a result of this conduct
in an amount to be determined at trial.

      On November 1, 2002, the Defendant filed a counter claim against Diamond,
alleging, among other things, that Diamond has engaged and continues to engage
in publishing certain false and defamatory statements about the Defendant to
automobile insurance companies that are the Defendant's clients. Defendant
alleges that this alleged conduct has injured the Defendant's goodwill and
business reputation with its insurance clients and in the auto glass repair and
replacement industry. Among other things, the Defendant is seeking damages in an
amount to be determined at trial.

      On February 3, 2003, Delbert Rice and Kenneth E. Springfield, Jr., on
behalf of themselves and all others similarly situated (the "Plaintiffs"), filed
a class action Complaint in the Court of Common Pleas of Luzerne County,
Pennsylvania against Diamond. Plaintiffs allege, among other things, Diamond
violated certain sections of the Pennsylvania Unfair Trade Practices and
Consumer Protection Law and common law. Plaintiffs allege that this alleged
conduct has caused monetary damages to Plaintiffs. Among other things,
Plaintiffs are seeking damages in an amount to be determined at trial. Diamond
believes Plaintiffs' allegations are without merit and plans to vigorously
contest this complaint.

      Diamond is involved in various claims and legal actions arising in the
ordinary course of business. In the opinion of management, the ultimate
disposition of these matters will not have a material adverse effect on
Diamond's financial condition, results of operations or liquidity. No amounts
have been recorded in the consolidated financial statements for any of these
legal actions.

                                       19
<PAGE>

ITEM 6. EXHIBITS AND REPORTS ON FORM 8-K

(a)       EXHIBITS

<Table>
<Caption>
EXHIBIT
NUMBER                                   DESCRIPTION
-------                                  -----------
<S>       <C>
10.2      Employment Agreement, dated October 21, 2004, between Diamond Triumph Auto
          Glass, Inc. and Michael A. Sumsky

10.3      Waiver and Amendment Number Nine to Financing Agreement, dated March 27,
          2000, between the CIT Business Group/Business Credit, Inc. and Diamond
          Triumph Auto Glass, Inc.

31.5      Sarbanes-Oxley Section 302(a) Certification of the Chief Executive
          Officer.

31.6      Sarbanes-Oxley Section 302(a) Certification of the Chief Financial
          Officer.

32.5      Certification Pursuant to 18 U.S.C. Section 1350, as adopted pursuant to
          Section 906 of the Sarbanes-Oxley Act of 2002 of the Chief Executive
          Officer.

32.6      Certification Pursuant to 18 U.S.C. Section 1350, as adopted pursuant to
          Section 906 of the Sarbanes-Oxley Act of 2002 of the Chief Financial
          Officer.
</Table>

(b)       REPORTS ON FORM 8-K

          Form 8-K filed on August 16, 2004, reporting that Diamond Triumph Auto
          Glass, Inc. issued a press release announcing its operating and
          financial results for the quarter ended September 30, 2004.

                                       20
<PAGE>

                                    SIGNATURE

PURSUANT TO THE REQUIREMENTS OF THE SECURITIES EXCHANGE ACT OF 1934, THE
REGISTRANT HAS DULY CAUSED THIS REPORT TO BE SIGNED ON ITS BEHALF BY THE
UNDERSIGNED, THEREUNTO DULY AUTHORIZED.

                               DIAMOND TRIUMPH AUTO GLASS, INC.

   Date: November 15, 2004     By: /s/  Michael A. Sumsky
                                   --------------------------------------
                                   Name:  Michael A. Sumsky
                                   Title: President,
                                          Chief Financial Officer and General
                                          Counsel (Principal Financial and Chief
                                          Accounting Officer)

                                       21