Best of Ontario

Best General Contractors in Toronto and Nearby Ontario Cities

Pro House Maintenance ranks the best general contractors in 21 Ontario cities in and around Toronto: Toronto, Mississauga, Brampton, Hamilton, Markham, Vaughan, Kitchener, Oakville, Richmond Hill, Burlington, Oshawa, Barrie, Guelph, Whitby, Cambridge, Milton, Ajax, Waterloo, Pickering, Newmarket, Aurora. Every list uses the same method: Google ratings of 4.5 stars or higher from at least 10 reviews, official registry checks where Ontario requires a licence, and free vetted matching as the first option.

By the Pro House Maintenance team · Published May 29, 2026 · Updated Nov 5, 2026

Which Ontario cities have a ranked list of general contractors?

Each city list names the top-rated general contractors based there, shows the licences we confirmed in public registries, and dates every rating check. Lists last updated November 5, 2026; pick your city below.

How can you compare general contractors without calling around?

Pro House Maintenance matches homeowners with general contractors that have passed licence, WSIB, insurance, reference and background checks, at no cost. You can compare free home additions quotes from vetted local pros, or read our home additions statistics report for national cost and lifespan data.

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