Quick Answer: Most Calgary residential roof repairs cost between $400 and $3,500 and take a half-day to two days to complete. The most common repairs in Calgary are pipe boot replacement, flashing repair, shingle replacement after wind events, and ice dam damage repair. Repair is the right answer until cumulative repair costs approach 50% of full replacement, at which point replacement is the better long-term spend. Calgary's freeze-thaw cycles, Chinook wind events, and summe