0000899243-03-000096 SC TO-I 6 20030121 QUANTA SERVICES INC 0001050915 1731 742851603 DE 1231 SC TO-I 34 005-54689 03519932 1360 POST OAK BLVD SUITE 2100 HOUSTON TX 77056 7133506000 1360 POST OAK BLVD SUITE 2100 HOUSTON TX 77056 QUANTA SERVICES INC 0001050915 1731 742851603 DE 1231 SC TO-I 1360 POST OAK BLVD SUITE 2100 HOUSTON TX 77056 7133506000 1360 POST OAK BLVD SUITE 2100 HOUSTON TX 77056 SC TO-I 1 dsctoi.htm TENDER OFFER STATEMENT EX-99.A1 3 dex99a1.htm OFFER TO EXCHANGE EX-99.A2 4 dex99a2.htm LETTER OF TRANSMITTAL EX-99.A3 5 dex99a3.htm LETTER TO HOLDERS EX-99.D3 6 dex99d3.htm AMENDMENT NO. 2 TO 2001 STOCK INCENTIVE PLAN EX-99.D4 7 dex99d4.htm AMENDMENT NO. 3 TO 2001 STOCK INCENTIVE PLAN