A roofing contractor handles anything to do with the roof over your head: full tear-offs and re-roofing, shingle or flat-roof repairs, leak diagnosis, ventilation and insulation work, eavestrough tie-ins, and storm or ice-damming damage. In Mississauga, that also means dealing with the freeze-thaw cycles, wind-driven rain off the lake, and the occasional summer hailstorm that can shorten a roof's life faster than the manufacturer's warranty suggests. We list 13 roofing contractors serving the city, ranging from small local crews to larger installation companies.
What to look for in a roofing contractor
Start with proof, not promises. A legitimate contractor carries WSIB coverage and liability insurance, and will show you both without being asked twice. Ask whether they pull permits when the job requires one (most full re-roofs in Mississauga do), and whether their crews are their own employees or subcontracted out, since that affects who is accountable if something goes wrong. Get a written estimate that breaks out materials, labour, disposal, and warranty terms separately, and be wary of anyone who wants a large deposit before any work starts or who pressures you to sign the same day, a common sign of storm-chaser outfits that appear after bad weather and vanish once paid.
How our scoring works
We score each contractor on verifiable signals: how consistently they respond to and resolve customer complaints, how long they've operated in the area, the volume and trend of their reviews, and whether their licensing and insurance claims hold up. For a full side-by-side ranking of all 13, see the best roofing contractors in Mississauga guide. Our full scoring criteria are explained on the methodology page.
