Roof repair covers the fixes that keep a roof from failing before it needs full replacement: patching shingles lifted or torn off by wind, sealing flashing around chimneys, skylights and vent stacks, resolving leaks at valleys and roof-wall junctions, replacing cracked or missing tiles, and repairing ice-damming damage that shows up along eaves after a hard Toronto winter. It's distinct from a full re-roof, which strips and replaces the whole roof system. A good repair contractor diagnoses the actual source of a leak (which is often several feet from where the stain shows up on your ceiling) rather than just patching the visible symptom.
We list 76 roof repair businesses serving the Toronto area on this page. Given how much quality varies, ask any contractor you're considering for proof of WSIB coverage and liability insurance, a written estimate that specifies materials and scope (not just a lump-sum price), and a clear answer on warranty terms for both labour and materials. Be wary of anyone who wants full payment up front or shows up unsolicited after a storm offering a same-day deal: that's a common pattern for low-quality or fraudulent work in this trade. A licensed local contractor with a fixed business address and a track record of jobs in your neighbourhood is generally a safer bet than a door-knocker.
Our scores weigh verified reviews, response reliability, and consistency of work over time, so you can compare contractors on more than star rating alone. For a ranked shortlist of the top-rated options in the city, see our best roofing contractors in Toronto guide. Details on how we calculate scores are on our methodology page.