Exhibit 23.1


           CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTANTING FIRM



     We hereby consent to the incorporation by reference in the Registration
Statements on Form S-8 (No 33-21735 and No. 33-350293) of KSW, Inc. of our
report dated February 9, 2006, except for Note 17(A) and (B), as to which the
dates are February 13, 2006 and March 1, 2006, and for Note 17(C), as to which
the date is March 14, 2006 relating to the consolidated financial statements
which are included in this Annual Report on Form 10-K.


MARDEN, HARRISON & KREUTER
Certified Public Accounts, P.C.

/s/ Marden, Harrison & Kreuter


White Plains, New York
March 15, 2006