Signs it is time to replace
- Shingles curling, cupping or losing granules into the gutters
- Repeated leaks in different spots, not one flashing detail
- Sagging roof lines or soft spots underfoot
- Daylight visible in the attic, or damp insulation
- Age past 18 to 22 years for standard asphalt shingles
Best time to book in Canada
Late spring through early fall gives the warm, dry days shingles need to seal properly. Crews book out weeks ahead by July, and late-fall or winter installs cost more because of shorter days and cold-weather handling.
What drives your quote up
- Number of existing layers to tear off
- Rotten sheathing discovered after tear-off
- Steep or multi-level roofs needing extra safety setup
- Skylights, chimneys and complex flashing
- Ventilation upgrades and ice-and-water shield coverage
Comparing roofers fairly
- Insist every quote lists the same material and warranty
- Confirm workmanship warranty length in writing
- Ask who supervises on site each day
- Check dumpster placement, driveway protection and cleanup
- Verify WSIB or provincial coverage and liability insurance