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Doors and windowsSpecialty contractors
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In Beauharnois, one company holds an active RBQ licence for door and window work, according to RBQ data dated November 3, 2026.
Beauharnois ranks 15th of 27 cities in the Montérégie region for this trade, with 2% of the region's 58 companies.
The choice is limited in Beauharnois. Companies from nearby cities in the region, such as Montréal (51), Laval (13) and Candiac (16), may also serve your area: ask them.
Useful guides: Weatherstripping and caulking: sealing air leaks · Renovation grants in Quebec 2026: LogisVert and Rénoclimat · Window replacement in Montréal: permits and rebates
Open data of the Régie du bâtiment du Québec as of November 3, 2026, updated every night.
Required licence, issuing body and subcategories for this trade: Doors and windows in Greater Montréal.
Source: Statistics Canada, 2021 Census, table 98-10-0233-01 (25% sample, rounded counts), Statistics Canada Open Licence.
Before you sign with a door and window contractor in Beauharnois: check the licence on the day, ask for written quotes and avoid large deposits. Printable checklist before you sign →