Installation ELK inc.
Specialty contractors
Call · 819 620-8476In Ayer’s Cliff, 3 companies are listed as active for roofing, doors and windows or finishing work in RBQ data dated November 3, 2026. None has held its licence for 10 years.

Specialty contractors
Call · 819 620-8476Specialty contractors
Call · 819 679-4382Specialty contractors
Call · 873 662-3590Ad · 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
Looking for a specialty contractor in Ayer’s Cliff? This page lists the 3 companies in Ayer’s Cliff that hold an active RBQ licence for roofing, doors and windows or finishing work, according to public RBQ data dated November 3, 2026.
Ayer’s Cliff ranks 52nd of 96 cities in the Estrie region for this trade, with < 1% of the region's 1,006 companies.
The choice is limited in Ayer’s Cliff. 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 Ayer’s Cliff: check the licence on the day, ask for written quotes and avoid large deposits. Printable checklist before you sign →