Construction PL Gosselin inc.
Specialty contractors
Call · 418 222-9329RBQ data dated November 3, 2026: 8 companies active in Lambton for roofing, doors and windows or finishing work. 1 (13%) has held their licence for 10 years or more, the oldest since 1988; none got its licence in the last 90 days.

Specialty contractors
Call · 418 222-9329Specialty contractors
Call · 819 460-2644Specialty contractors
Call · 514 475-9118Specialty contractors
Call · 819 582-1200Specialty contractors
Call · 418 486-2227Specialty contractors
Call · 418 486-2688Specialty contractors
Call · 418 313-3940Specialty contractors
Call · 418 208-5101Ad · Featured placement · examplePreview only — this is not a contractor listing
Sherbrooke 276Granby 128Magog 62Farnham 34Bromont 29Cowansville 28Shefford 28Saint-Alphonse-de-Granby 20Roxton Pond 19Saint-Denis-de-Brompton 18Ascot Corner 17Stoke 14
In Lambton, 8 companies are allowed by their RBQ licence to do roofing, doors and windows or finishing work. Before you ask a specialty contractor for a quote, check that the licence covers your job.
In the Estrie region, 1,006 companies work in this trade across 96 cities; Lambton has 8 of them (23rd).
The choice is limited in Lambton. Companies from nearby cities in the region, such as Sherbrooke (276), Granby (128) and Magog (62), may also serve your area: ask them.
Useful guides: Replacing exterior siding: permits in Montréal and Laval · Gutter cleaning and downspouts: Montréal rules · Radon test at home: when to test and how to fix it
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: Specialty contractors 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 specialty contractor in Lambton: check the licence on the day, ask for written quotes and avoid large deposits. Printable checklist before you sign →