0000950129-04-009726 8-K 2 20041209 1.01 9.01 20041213 20041213 QUANTA SERVICES INC 0001050915 1731 742851603 DE 1231 8-K 34 001-13831 041199656 1360 POST OAK BLVD SUITE 2100 HOUSTON TX 77056 7133506000 1360 POST OAK BLVD SUITE 2100 HOUSTON TX 77056 8-K 1 h20914e8vk.htm QUANTA SERVICES, INC. - DATED 12/9/2004 EX-1.1 2 h20914exv1w1.htm UNDERWRITING AGREEMENT DATED DECEMBER 9, 2004