Construction & Renovation in Ontario

General contractors and renovation specialists manage construction projects from initial planning through completion, coordinating trades, materials, permits and timelines. Ontario contractors in this category handle home additions, full and partial kitchen and bathroom renovations, basement finishing, structural changes, exterior renovations, and whole-home remodels. They typically subcontract specialized trades (electrical, plumbing, HVAC) and act as the single point of contact for the homeowner.
Find Ontario general contractors and renovation companies across Toronto, the GTA, Hamilton, Ottawa and other major Ontario cities. Listings show service areas, project specialties, photos of completed renovations and direct contact details. Carpenter Bee is a classified directory — we do not vet or verify the contractors who post listings here. Before signing any contract for renovation work, request current WSIB clearance, a Certificate of Insurance ($2M minimum is typical), references from recent comparable projects, and a detailed written scope of work. Major renovations require municipal building permits under the Ontario Building Code, and certain projects involving structural changes may also require Tarion registration if the contractor is delivering substantially new construction.