Exhibit 10(t)

                                 FIRST AMENDMENT
                                     TO THE
                  INCENTIVE PLAN FOR SENIOR EXECUTIVE OFFICERS
                              OF EMCOR GROUP, INC.


     This First Amendment to the Incentive Plan for Senior Executive Officers of
EMCOR Group, Inc. (the "Plan") is made as of December 14, 2005.

     WHEREAS,  pursuant to Section  7.1 of the Plan,  the Plan may be amended by
the Board of Directors of EMCOR Group, Inc. (the "Company"); and

     WHEREAS,  on the  date  hereof,  the  Board  of  Directors  of the  Company
unanimously voted pursuant to a motion duly made and seconded to amend the Plan.

     NOW  THEREFORE,  the Plan is hereby  amended  to strike  "March 15" in each
place in the Plan where it appears and substitute "March 5" therefor.

     IN WITNESS  WHEREOF,  the undersigned has executed this Amendment as of the
date first written above.

     EMCOR GROUP, INC.


     By  /s/ R. Kevin Matz
         -----------------
           R. Kevin Matz
           Senior Vice President - Shared Services