Exhibit 10.25

EXECUTION VERSION

AMENDMENT NO. 1 TO
FOURTH AMENDED AND RESTATED CREDIT AGREEMENT

THIS AMENDMENT NO. 1 TO FOURTH AMENDED AND RESTATED CREDIT AGREEMENT dated as of
September 14, 2018 (this “Amendment”), is among MASTEC, INC., a Florida
corporation (the “Company”), MASTEC NORTH AMERICA, INC., a Florida corporation
(together with the Company, collectively, the “Borrowers”), BANK OF AMERICA,
N.A., in its capacities as the Administrative Agent (in such capacity, the
“Administrative Agent”) and a Lender (as defined below), each of the other
Lenders party hereto and each of the Subsidiary Guarantors party hereto.
RECITALS:

A.The Borrowers, the lenders party thereto (the “Lenders”) and the
Administrative Agent have entered into a Fourth Amended and Restated Credit
Agreement dated as of February 22, 2017 (the “Credit Agreement”). Capitalized
terms used and not otherwise defined herein shall have the meanings ascribed to
them in the Credit Agreement (as defined below).
B.The Borrowers have requested to amend the Credit Agreement in order to, among
other things, provide for (i) an earlier termination date for the period during
which “most favored nation” pricing would apply with respect to any Additional
Term Loan Tranche and (ii) a new exception to the indebtedness covenant to allow
for up to $100,000,000 of unsecured indebtedness in the form of reimbursement
obligations under letters of credit, surety arrangements and similar
obligations.
C.Subject to the terms and conditions set forth below, the parties hereto have
agreed to so amend the Credit Agreement.
In furtherance of the foregoing, the parties agree as follows:

Section 1.    Amendments to Credit Agreement. Subject to the terms and
conditions set forth herein and in reliance upon the representations and
warranties set forth herein, the Credit Agreement is hereby amended as follows:

(a)    Section 1.02 is amended to add the following new defined terms in
appropriate alphabetical order:
“Beneficial Ownership Certification” means a certification regarding beneficial
ownership required by the Beneficial Ownership Regulation.
“Beneficial Ownership Regulation” means 31 C.F.R. § 1010.230.
(b)    Section 2.15(b) is amended to change the reference therein to “the second
anniversary of the Closing Date” to read “the date that is eighteen (18) months
following the Closing Date”.
(c)    Article V is amended to add a new Section 5.26 to the end thereof to read
as follows:
5.26    Beneficial Ownership Certification. As of September 14, 2018, the
information included in any Beneficial Ownership Certification, if applicable,
is true and correct in all material respects.
(d)    Section 7.03 is amended to restate clause (p) therein in its entirety to
read as follows:
(p)    Indebtedness constituting reimbursement obligations with respect to
letters of credit, bankers’ acceptances, bank guarantees and similar obligations
in an aggregate principal amount not to exceed $100,000,000 at any time
outstanding;
Section 2.    Conditions Precedent. The parties hereto agree that this Amendment
shall be effective as of the date first set forth above (such date, the
“Amendment Effective Date”) upon the satisfaction of each of the following
conditions precedent:

(a)     Documentation. The Administrative Agent’s receipt of the following, each
of which shall be originals or facsimiles or electronic copies (including “PDF”
and “TIFF” files) (followed promptly by originals), each properly executed by a
Responsible Officer of the signing Loan Party, dated the Amendment Effective
Date and in form and substance reasonably satisfactory to the Administrative
Agent and each of the Lenders:

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(i)    a counterpart of this Amendment, duly executed and delivered by the
Borrowers, the Subsidiary Guarantors, the Administrative Agent and the Required
Lenders; and
(ii)    at least three (3) days prior to the date hereof, each Borrower that
qualifies as a “legal entity customer” under the Beneficial Ownership Regulation
shall deliver, to each Lender that so requests, a Beneficial Ownership
Certification in relation to such Borrower.

(b)    Legal Fees and Expenses. In each case subject to the limitations set
forth in Section 10.04(a) of the Credit Agreement, unless waived by the
Administrative Agent, the Company shall have paid all fees, charges and
disbursements of counsel to the Administrative Agent (directly to such counsel
if requested by the Administrative Agent) to the extent invoiced in reasonable
detail at least two (2) Business Days prior to the Amendment Effective Date,
plus such additional amounts of such fees, charges and disbursements as shall
constitute its reasonable estimate of such fees, charges and disbursements
incurred or to be incurred by it through the closing proceedings (provided that
such estimate shall not thereafter preclude a final settling of accounts between
the Company and the Administrative Agent).

Section 3.    Representations and Warranties.

(a)    In order to induce the Administrative Agent and the Lenders to enter into
this Amendment, each Borrower represents and warrants to the Administrative
Agent and the Lenders as follows:

(i)    The representations and warranties of (A) each Borrower contained in
Article V of the Credit Agreement and (B) each Loan Party contained in each
other Loan Document are true and correct in all material respects on and as of
the date hereof, except that (x) if a qualifier relating to materiality,
Material Adverse Effect or a similar concept applies, such representation or
warranty is true and correct in all respects, (y) to the extent that such
representations and warranties specifically refer to an earlier date, in which
case they are true and correct in all material respects as of such earlier date
(except that if a qualifier relating to materiality, Material Adverse Effect or
a similar concept applies, such representation or warranty is true and correct
in all respects as of such earlier date), and (z) for purposes of this
Amendment, the representations and warranties contained in subsections (a), (b)
and (c) of Section 5.05 of the Credit Agreement shall be deemed to refer to the
most recent statements furnished pursuant to clauses (a) and (b) of Section 6.01
of the Credit Agreement, as applicable.

(ii)    Since December 31, 2017, there has been no event or circumstance, either
individually or in the aggregate, that has had or could reasonably be expected
to have a Material Adverse Effect.

(iii)    No Default has occurred and is continuing or will result from the
consummation of the transactions contemplated by this Amendment.

(iv)    This Amendment has been duly authorized by all necessary corporate or
other organizational action of such Borrower and duly executed and delivered by
it, and constitutes its legal, valid and binding obligation, except as may be
limited by equitable principles relating to or limiting creditors’ rights
generally or by bankruptcy, insolvency, reorganization, moratorium or similar
laws.

(v)    No consents, licenses or approvals are required in connection with (A)
the execution, delivery and performance by each Borrower and the validity
against each Borrower of this Amendment or (B) the performance by, or validity
against, any Loan Party of any Loan Document (after giving effect to this
Amendment), in each case except (a) those which have been obtained, taken, given
or made and (b) Uniform Commercial Code financing statements, the recording of
Mortgages and similar documentation to be delivered pursuant to the Loan
Documents.

(b)    In order to induce the Administrative Agent and the Lenders to enter into
this Amendment, each Subsidiary Guarantor represents and warrants to the
Administrative Agent and the Lenders that this Amendment has been duly
authorized by all necessary corporate or other organizational action of such
Subsidiary Guarantor and duly executed and delivered by it, and constitutes its
legal, valid and binding obligation, except as may be limited by equitable
principles relating to or limiting creditors’ rights generally or by bankruptcy,
insolvency, reorganization, moratorium or similar laws.

Section 4.    Miscellaneous.

(a)    Ratification and Confirmation of Loan Documents. Each Borrower and each
Subsidiary Guarantor hereby consents to, acknowledges and agrees to the
amendments set forth herein and hereby confirms and ratifies in all respects the
Loan Documents (including, without limitation, the continuation of such Person’s
payment and performance obligations thereunder and the continuation of the liens
and security interests granted thereunder) to which such Person is a party
(other than any Loan Document

    
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which has been terminated or has expired pursuant to its terms) and the
enforceability of each such Loan Document against such Person in accordance with
its terms (except as may be limited by equitable principles relating to or
limiting creditors’ rights generally or by bankruptcy, insolvency,
reorganization, moratorium or similar laws), in each case upon and after the
effectiveness of this Amendment and the amendments contemplated hereby.

(b)    Fees and Expenses. The Company shall pay on demand all reasonable and
documented costs and expenses of the Administrative Agent in connection with the
preparation, negotiation, execution, and delivery of this Amendment and any
other documents prepared in connection herewith, including, without limitation,
the reasonable fees, charges and disbursements of counsel to the Administrative
Agent (subject to the limitations set forth in Section 10.04(a) of the Credit
Agreement).

(c)    Headings. Section and subsection headings in this Amendment are included
herein for convenience of reference only and shall not constitute a part of this
Amendment for any other purpose or be given any substantive effect.

(d)    Governing Law; Jurisdiction; Waiver of Jury Trial; Etc. This Amendment
shall be governed by and construed in accordance with the laws of the State of
New York without regard to conflicts of law that would require the application
of the laws of another jurisdiction, and shall be further subject to the
provisions of Sections 10.14 and 10.15 of the Credit Agreement.

(e)    Counterparts. This Amendment may be executed in any number of
counterparts, each of which when executed and delivered shall be deemed to be an
original, and all of which when taken together shall constitute one and the same
agreement. Delivery of an executed counterpart of a signature page of this
Amendment by facsimile or electronic transmission (including .pdf file) shall be
effective as delivery of a manually executed counterpart hereof.

(f)    Entire Agreement. This Amendment, together with all the Loan Documents
(collectively, the “Relevant Documents”), sets forth the entire understanding
and agreement of the parties hereto in relation to the subject matter hereof and
supersedes any prior negotiations and agreements among the parties relating to
such subject matter. No promise, condition, representation or warranty, express
or implied, not set forth in the Relevant Documents shall bind any party hereto,
and no such party has relied on any such promise, condition, representation or
warranty. Each of the parties hereto acknowledges that, except as otherwise
expressly stated in the Relevant Documents, no representations, warranties or
commitments, express or implied, have been made by any party to the other in
relation to the subject matter hereof or thereof. None of the terms or
conditions of this Amendment may be changed, modified, waived or canceled orally
or otherwise except in writing in accordance with Section 10.01 of the Credit
Agreement.

(g)    Enforceability. Should any one or more of the provisions of this
Amendment be determined to be illegal or unenforceable as to one or more of the
parties hereto, all other provisions nevertheless shall remain effective and
binding on the parties hereto.

(h)    Successors and Assigns. This Amendment shall be binding upon and inure to
the benefit of the parties hereto and their respective successors and assigns
(subject to Section 10.06 of the Credit Agreement).

[Remainder of Page Intentionally Left Blank; Signature Pages Follow]

    
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The following parties have caused this Amendment to be executed as of the date
first written above.

BORROWERS:

MASTEC, INC.
MASTEC NORTH AMERICA, INC.
By: /s/ Robert E. Apple                    
Name:    Robert E. Apple
Title:    Chief Operating Officer
SUBSIDIARY GUARANTORS:

BOTTOM LINE SERVICES, LLC

By: /s/ Robert E. Apple                    
Name:    Robert E. Apple
Title:    Investor Manager

EC SOURCE SERVICES, LLC
MASTEC NETWORK SOLUTIONS, LLC
T&D POWER, INC.

By: /s/ Robert E. Apple                    
Name: Robert E. Apple    
Title: Executive Vice President

GO GREEN SERVICES, LLC

By: /s/ Robert E. Apple                    
Name:    Robert E. Apple
Title:    Initial Manager

AMENDMENT NO. 1 TO FOURTH AMENDED AND RESTATED CREDIT AGREEMENT
Signature Page

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LEMARTEC CORPORATION
MASTEC POWER CORP.
MASTEC RENEWABLES CONSTRUCTION COMPANY, INC.
PRETEC DIRECTIONAL DRILLING, LLC
PUMPCO, INC.
SEFNCO COMMUNICATIONS, INC.

By:/s/ Robert E. Apple                    
Name:    Robert E. Apple
Title:    Vice President

ENERGY ERECTORS, INC.
ENERGY ENVIRONMENTAL GROUP, INC.
MASTEC EQUIPMENT, INC.
MASTEC ETS SERVICE COMPANY, LLC
MASTEC NETWORK SOLUTIONS, INC.
MASTEC RESIDENTIAL SERVICES, LLC
MP DRILLING HOLDINGS, LLC
POWER PARTNERS MASTEC, INC.
POWER PARTNERS MASTEC, LLC
THREE PHASE ACQUISITION CORP.
THREE PHASE LINE CONSTRUCTION, INC.
WANZEK CONSTRUCTION, INC.
WESTOWER COMMUNICATIONS, LLC

By:/s/ Robert E. Apple                    
Name:    Robert E. Apple
Title:    President

PRECISION ACQUISITION, LLC
By: MasTec, Inc., its sole member

By:/s/ Robert E. Apple                    
Name:    Robert E. Apple
Title:    Chief Operating Officer

AMENDMENT NO. 1 TO FOURTH AMENDED AND RESTATED CREDIT AGREEMENT
Signature Page

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PRECISION PIPELINE LLC
PRECISION TRANSPORT COMPANY, LLC

By: /s/ Robert E. Apple                    
Name:    Robert E. Apple
Title:    Manager

MASTEC WIRELESS SERVICES, LLC

By: /s/ Carol Stiefel                        
Name:    Carol Stiefel
Title:    Associate General Counsel and Assistant Secretary

CASH CONSTRUCTION COMPANY, INC.

By: /s/ Paul DiMarco    
Name:    Paul DiMarco
Title:    Vice President

AMENDMENT NO. 1 TO FOURTH AMENDED AND RESTATED CREDIT AGREEMENT
Signature Page

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ADMINISTRATIVE AGENT:

BANK OF AMERICA, N.A., as Administrative
Agent
By: /s/ Felicia Brinson                    
Name:    Felicia Brinson    
Title:    Assistance Vice President    

AMENDMENT NO. 1 TO FOURTH AMENDED AND RESTATED CREDIT AGREEMENT
Signature Page

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LENDERS:
BANK OF AMERICA, N.A., as a Lender, L/C Issuer and Swing Line Lender
By: /s/ Julia H. Rocawich    
Name:    Julia H. Rocawich    
Title:    Sr. Vice President    

AMENDMENT NO. 1 TO FOURTH AMENDED AND RESTATED CREDIT AGREEMENT
Signature Page

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SUNTRUST BANK
By: /s/ David A. Ernst    
Name:    David A. Ernst    
Title:    Vice President    

AMENDMENT NO. 1 TO FOURTH AMENDED AND RESTATED CREDIT AGREEMENT
Signature Page

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BANK OF MONTREAL
By: /s/ Michael Gift    
Name:    Michael Gift    
Title:    Director    

AMENDMENT NO. 1 TO FOURTH AMENDED AND RESTATED CREDIT AGREEMENT
Signature Page

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WELLS FARGO BANK, NATIONAL ASSOCIATION
By: /s/ Mark B. Felke    
Name:    Mark B. Felke    
Title:    Managing Director    

AMENDMENT NO. 1 TO FOURTH AMENDED AND RESTATED CREDIT AGREEMENT
Signature Page

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MORGAN STANLEY BANK, N.A., as a Lender

By: /s/ Rikin Pandya    
Name:    Rikin Pandya    
Title:    Authorized Signatory    

AMENDMENT NO. 1 TO FOURTH AMENDED AND RESTATED CREDIT AGREEMENT
Signature Page

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MUFG BANK, LTD,. formerly known as THE BANK OF TOKYO-MITSUBISHI UFJ, LTD.
By: /s/ Lauren Hom    
Name:    Lauren Hom    
Title:    Director    

AMENDMENT NO. 1 TO FOURTH AMENDED AND RESTATED CREDIT AGREEMENT
Signature Page

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MUFG UNION BANK, N.A.
By: /s/ Lauren Hom    
Name:    Lauren Hom    
Title:    Director    

AMENDMENT NO. 1 TO FOURTH AMENDED AND RESTATED CREDIT AGREEMENT
Signature Page

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COMPASS BANK

By: /s/ Raj Nambiar    
Name:    Raj Nambiar    
Title:    Senior Vice President    

AMENDMENT NO. 1 TO FOURTH AMENDED AND RESTATED CREDIT AGREEMENT
Signature Page

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PNC BANK, NATIONAL ASSOCIATION

By: /s/ James L. Cullen    
Name:    James L.Cullen    
Title:    Vice President    

AMENDMENT NO. 1 TO FOURTH AMENDED AND RESTATED CREDIT AGREEMENT
Signature Page

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HSBC BANK USA, N.A.

By: /s/ Peter Hart    
Name:    Peter Hart    
Title:    Senior Vice President    

AMENDMENT NO. 1 TO FOURTH AMENDED AND RESTATED CREDIT AGREEMENT
Signature Page

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JPMORGAN CHASE BANK, N.A.

By: /s/ John Kushnerick    
Name:    John Kushnerick    
Title:    Executive Director    

AMENDMENT NO. 1 TO FOURTH AMENDED AND RESTATED CREDIT AGREEMENT
Signature Page

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CAPITAL ONE, NATIONAL ASSOCIATION
By: /s/ Timothy Miller    
Name:    Timothy Miller    
Title:    Vice President    

AMENDMENT NO. 1 TO FOURTH AMENDED AND RESTATED CREDIT AGREEMENT
Signature Page

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BARCLAYS BANK PLC

By: /s/ May Huang    
Name:    May Huang    
Title:    Assistant Vice President    

AMENDMENT NO. 1 TO FOURTH AMENDED AND RESTATED CREDIT AGREEMENT
Signature Page

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BANK UNITED, NA

By: /s/ Charles J. Klenk    
Name:    Charles J. Klenk    
Title:    Senior Vice President    

AMENDMENT NO. 1 TO FOURTH AMENDED AND RESTATED CREDIT AGREEMENT
Signature Page

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U.S. BANK NATIONAL ASSOCIATION, as a Lender

By: /s/ Steven L. Sawyer    
Name:    Steven L. Sawyer    
Title:    Senior Vice President    

AMENDMENT NO. 1 TO FOURTH AMENDED AND RESTATED CREDIT AGREEMENT
Signature Page

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BRANCH BANKING AND TRUST COMPANY, as a Lender

By: /s/ Stephen R. Garrett    
Name:    Stephen R. Garrett    
Title:    Assistant Vice President    

AMENDMENT NO. 1 TO FOURTH AMENDED AND RESTATED CREDIT AGREEMENT
Signature Page

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SYNOVUS BANK

By: /s/ Michael Sawicki    
Name:    Michael Sawicki    
Title:    Director    

AMENDMENT NO. 1 TO FOURTH AMENDED AND RESTATED CREDIT AGREEMENT
Signature Page

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BANCO DE SABADELL, S.A. – MIAMI BRANCH, as a Lender

By: /s/ Ignacio Alcaraz    
Name:    Ignacio Alcaraz    
Title:    Head of Structured Finance Americas    

AMENDMENT NO. 1 TO FOURTH AMENDED AND RESTATED CREDIT AGREEMENT
Signature Page

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FLORIDA COMMUNITY BANK N.A., as a Lender

By: /s/ Irene Marshall    
Name:    Irene Marshall    
Title:    SVP, Regional Credit Director    

AMENDMENT NO. 1 TO FOURTH AMENDED AND RESTATED CREDIT AGREEMENT
Signature Page

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ISRAEL DISCOUNT BANK OF NEW YORK

By: /s/ Christopher Meade    
Name:    Christopher Meade    
Title:    Vice President    

By: /s/ Rod Trzcinski    
Name:    Rod Trzcinski    
Title:    Senior Vice President    

AMENDMENT NO. 1 TO FOURTH AMENDED AND RESTATED CREDIT AGREEMENT
Signature Page