0000950129-04-007194 8-K 3 20040920 7.01 9.01 20040921 20040920 QUANTA SERVICES INC 0001050915 1731 742851603 DE 1231 8-K 34 001-13831 041038274 1360 POST OAK BLVD SUITE 2100 HOUSTON TX 77056 7133506000 1360 POST OAK BLVD SUITE 2100 HOUSTON TX 77056 8-K 1 h18533e8vk.htm QUANTA SERVICES, INC. - DATED 9/20/2004 EX-99.1 2 h18533exv99w1.htm PRESS RELEASE DATED SEPTEMBER 20, 2004 GRAPHIC 3 h18533quanta3c.jpg GRAPHIC