How many residential roofing contractors are in Toronto?
Our directory lists 8 independently verified residential roofing contractors serving Toronto, Ontario, ranked by experience, certifications and reputation. Dominion Roofing is ranked #1.
How do I choose a residential roofer in Toronto?
Confirm licensing and insurance for Ontario, ask for residential project references in Toronto, get multiple written quotes, and check each contractor's BBB standing. Every company listed here has been independently researched.
Does the City of Toronto require a building permit for a residential roof replacement?
A straightforward like-for-like shingle replacement on an existing deck in Toronto typically does not require a building permit under the Ontario Building Code. However, any work that touches the structural roof deck, changes the roof pitch or drainage configuration, adds a skylight or dormer, or alters the building envelope in a meaningful way does require a permit from the City of Toronto's Building Division. When in doubt, confirm with the city before work begins — pulling a permit that should not be skipped protects both the homeowner and establishes documented proof of compliant installation for future home sales and insurance purposes.
What credentials should I look for in a Toronto residential roofing contractor?
Ontario does not issue a provincial roofing trade licence, so the key credentials are WSIB clearance (confirming the contractor's workers are covered for workplace injuries on your property), current general liability insurance, and manufacturer certifications such as GAF Master Elite, CertainTeed SELECT ShingleMaster, or IKO RoofPro. These certifications are awarded to a limited share of contractors and unlock extended system warranties. BBB accreditation with an established rating history provides an additional accountability reference. Longevity in the Toronto market — companies that have worked in the city for multiple decades — is also a meaningful signal of accountability.
What is ice-and-water shield, and is it required on Toronto residential roofs?
Ice-and-water shield is a self-adhering membrane applied directly to the roof deck at the eaves, valleys, and other vulnerable locations before the primary roofing material is installed. It prevents water infiltration from ice dams — which form when heat escaping through the attic melts roof snow that refreezes at the cold eaves and backs up under the shingles. The Ontario Building Code requires ice-and-water shield on residential roofs in climate zones subject to ice damming, which includes Toronto. A contractor who does not include it in a standard residential installation scope is not meeting code requirements.