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                                                                EXHIBIT 10.14(b)


                             AMENDMENT NO. 1 TO THE
                        SUPPLEMENTAL RETIREMENT PLAN FOR
                 ELIGIBLE EMPLOYEES OF AECO PRODUCTS DIVISION OF
                        NATIONAL SERVICE INDUSTRIES, INC.

         THIS AMENDMENT made as of this 31st day of August, 1996, by National
Service Industries, Inc. ("NSI");

                              W I T N E S S E T H:

         WHEREAS, NSI has previously established the Supplemental Retirement
Plan for Eligible Employees of AECO Products Division of National Service
Industries, Inc. (the "Plan") for the exclusive benefit of its eligible
employees and their beneficiaries; and

         WHEREAS, effective as of July 1, 1995, NSI adopted a 401(k) plan for
the benefit of the employees of AECO Products Division; and

         WHEREAS, NSI now desires to amend the Plan to reflect that the Accrued
Pension under the Plan is offset for contributions made to the 401(k) plan; and

         WHEREAS, pursuant to the power of amendment contained in Section 11.1
of the Plan, the Plan is hereby amended as follows:

                                       1.

         Section 1.1(a) of the Plan is hereby amended by deleting the first
sentence of such section and substituting the following therefor:

         "A Participant as of any given date shall have an Accrued Pension,
         which, in each case, shall be reduced by (i) the benefit, or the
         Actuarial Equivalent of the benefit, where appropriate, which the
         Participant is entitled to receive from the AECO Plan, and (ii) the
         Actuarial Equivalent value of the Participant's hypothetical Account in
         the 401(k) Plan, assuming the Participant had contributed to the 401(k)
         Plan during the period he was eligible to participate in such Plan in
         an amount annually equal to 2% of his "Annual Compensation" (as that
         term is defined in the 401(k) Plan and subject to the limitation of
         Section 401(a)(17) of the Internal Revenue Code of 1986, as amended
         (the "Code")) and received related matching contributions, and that his
         Account had earned 8% per annum to such date."



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                                       2.

         Section 1.1 of the Plan is hereby amended by adding a new Section (ll)
as follows:

         "(ll) 401(k) Plan - The AECO Employees' 401(k) Retirement and Savings
         Plan, which became effective July 1, 1995, as it may be amended from
         time to time."

                                       3.

         Section 2.1(a)(ii) of the Plan is hereby amended by deleting the
existing section in its entirety and substituting the following therefor:

         "The Eligible Employee is a Participant in the AECO Plan, but is not
         covered under any other tax qualified non-governmental retirement plan
         (other than the 401(k) Plan) to which the Company contributed, whether
         the Plan is a Company plan or otherwise."

                                       4.

         This Amendment shall be effective July 1, 1995. Except as provided
herein, the provisions of the Plan shall remain in full force and effect.


         IN WITNESS WHEREOF, NSI has caused this Amendment No. 1 to be executed
by its duly authorized corporate officer and is hereby accepted the same as of
the date and year first written above.




ATTEST:                             NATIONAL SERVICE INDUSTRIES, INC.



By: /s/ Carol Ellis Morgan          By: /s/ David Levy
    ------------------------            ----------------------------------------
        Carol Ellis Morgan                  David Levy
        Assistant Secretary                 Executive Vice President
                                            Administration and Counsel