Pizzolitto signed with the Montreal Impact in the summer of 1995, becoming an import key to Montreal's defence. Where he has helped the Impact win the league championship in 2004, as well as the regular-season title from 1995 to 1997, and 2005 to 2006. As well as claiming the Voyageurs Cup six years in row. In 2005 he helped the Impact to a 15-game undefeated streak which marked a new league record. He was picked on the second All-League team from 2004 to 2006, and was named the Impact’s Defensive Player of the Year in 2005.
On July 16, 2006 he played his 200th career game with the Montreal club, becoming the third player in club history to reach that mark after Nick De Santis and Mauro Biello. On July 26. 2006 climbed to third place in club history for career minutes played with the Impact, surpassing Patrick Diotte. He helped Montreal come up with 10 shutouts at home, tying a club record, and allow only four goals at home, marking a new club record in 2006.