Pizzolitto signed with Montreal Impact in the summer of 1995, becoming an important 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.