Roofing covers everything from a shingle repair after a windstorm to a full tear-off and replacement on a century home in Leslieville. Toronto contractors in this category handle asphalt shingle, metal, flat/membrane, and cedar roofs, along with flashing, ventilation, eavestrough tie-ins, and insurance work for storm or ice-dam damage. We track 77 roofing contractors serving the city, ranging from small owner-operated crews to larger install teams that run multiple jobs at once.
Roofing is a category where the gap between a good contractor and a bad one shows up years later, when a bad install leaks or a warranty turns out to be worthless. Before you hire, look for: a physical business address and WSIB coverage (Ontario requires it for workers on your roof), manufacturer certification if you want a shingle warranty that's actually backed by the maker, a written estimate that spells out materials, tear-off vs. overlay, and ventilation work, and local references from jobs done in the last year or two so you can see how the roof held up through a Toronto winter. Be wary of anyone who wants full payment up front or shows up unannounced after a storm.
Our scoring pulls together review volume and rating trends, how consistently a contractor responds to customers, and signals of licensing and longevity, so you can shortlist contractors without reading through hundreds of reviews yourself. For the contractors that come out on top in this city, see our ranked guide to the best roofing contractors in Toronto. To see exactly how we calculate the scores and rankings, check our methodology.
