Born in Harrow, Ontario, Fretter played Jr. B hockey for Chatham Maroons until 2001-2002 where they recorded no more than nine losses for three straight seasons, winning two championships and three division titles.

During 2007-2008 season, he split time between three teams: Gwinnett, and the Bridgeport Sound Tigers and the Chicago Wolves, both of the AHL.

Fretter signed a two-way deal with Buffalo Sabres on August 4, 2008 and was assigned to their AHL affiliate, the Portland Pirates.

[2] After spending the 2010–11 season in Italy with the Bolzano-Bozen Foxes on May 20, 2011, Fretter signed a one-year contract with German DEL team, Iserlohn Roosters.

[4] Unable to secure a contract in Munich, Fretter played the season in the Austrian Hockey League with EC KAC, contributing with 36 points in 46 games.