J-F Dufour Construction Inc.
Specialty contractors
Call · 514 704-1284RBQ data dated November 4, 2026: 10 companies active in Saint-Jacques-le-Mineur for roofing, doors and windows or finishing work. 1 (10%) has held their licence for 10 years or more, the oldest since 2016; none got its licence in the last 90 days.

Specialty contractors
Call · 514 704-1284Specialty contractors
Call · 514 978-4129Specialty contractors
Call · 450 358-5185Specialty contractors
Call · 514 704-1796Specialty contractors
Call · 514 806-3675Specialty contractors
Call · 514 292-9192Specialty contractors
Call · 450 659-8549Specialty contractors
Call · 514 386-6499Specialty contractors
Call · 514 239-0129Specialty contractors
Call · 514 663-5687Ad · Featured placement · examplePreview only — this is not a contractor listing
Longueuil 354Saint-Jean-sur-Richelieu 245Saint-Hyacinthe 111Brossard 93Salaberry-de-Valleyfield 76Châteauguay 75Boucherville 70Vaudreuil-Dorion 70Sainte-Julie 66Belœil 66Saint-Constant 62Chambly 60
Looking for a specialty contractor in Saint-Jacques-le-Mineur? This page lists the 10 companies in Saint-Jacques-le-Mineur that hold an active RBQ licence for roofing, doors and windows or finishing work, according to public RBQ data dated November 4, 2026.
In the Montérégie region, 3,043 companies work in this trade across 146 cities; Saint-Jacques-le-Mineur has 10 of them (67th).
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 4, 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 Saint-Jacques-le-Mineur: check the licence on the day, ask for written quotes and avoid large deposits. Printable checklist before you sign →