170921 Canada inc.
RoofersSpecialty contractors
Call · 514 684-0548Roofing in the West Island (Montréal): 16 roofing companies, 1 new in the West Island in 90 days; 16 reachable by phone.

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Ahuntsic-Cartierville 2Lachine 3LaSalle 8Le Plateau-Mont-Royal 1Le Sud-Ouest 3Montréal-Nord 4NDG (Notre-Dame-de-Grâce) 4Rivière-des-Prairies–Pointe-aux-Trembles 20Rosemont–La Petite-Patrie 2Saint-Laurent 6Saint-Léonard 11Ville-Marie (Downtown) 6Villeray–Saint-Michel–Parc-Extension 4West Island 16All of Montréal
RoofersSpecialty contractors
Call · 514 684-0548RoofersSpecialty contractors
Call · 514 624-4210Renovation, construction and general workRoofers
Call · 514 290-4344RoofersSpecialty contractors
Call · 514 695-2356Renovation, construction and general workHeating, ventilation and air conditioningRoofersWood stoves and fireplacesMasonryConcrete and foundationsSeptic systemsWells and water pumps
Call · 514 695-353516 roofing companies in the West Island: under 5 years (9), 20 years or more (4), 5 to 9 years (2), 10 to 19 years (1). Median in the West Island: 2023. Longest licensed in the West Island: Couvertures West-Island inc. (1986), Couvreur L.L. inc. (1996) and 170921 Canada inc. (2002). Newest: 9510-4139 Québec inc. (August 26, 2026) and Toiture Acier Montréal inc. (May 21, 2026).
0 of 16 in the West Island: roofing only; other trades specialty (11), renovation (5), heating (1), stoves (1). Subcategories in the West Island: small buildings (5), any building (4), framing (2), wood heating (1), septic (1), piles (1). Bonds in the West Island: 5 at $40,000, 11 at $20,000. 9 have another name.
First licences in the West Island, by decade: 1980s (1), 1990s (1), 2000s (2), 2010s (1), 2020s (11). 20 years or more: 25% of licences in the West Island, 11th of 22 areas (island: 31%).
West Island covers Pierrefonds-Roxboro, L’Île-Bizard–Sainte-Geneviève, Pointe-Claire, Kirkland, Dollard-des-Ormeaux, Beaconsfield, Baie-D’Urfé, Sainte-Anne-de-Bellevue, Senneville and Dorval. With 16 roofing companies, West Island is 2nd of 22 areas; Rivière-des-Prairies–Pointe-aux-Trembles (20) and Saint-Léonard (11) on either side. West Island share: 18% of 90 roofers.
West Island: 50 permits of 1,829 mention roofing. Breakdown: membranes 20, shingles 12. 3% in the West Island, against 11% for Montréal. West Island, all work: 1,829; alterations 427. West Island comes 13th of 19, near Saint-Laurent (62), Le Plateau-Mont-Royal (48). Highest 7 (June 2026), lowest 0 (December 2025). Counts Pierrefonds-Roxboro (1,396) and L’Île-Bizard–Sainte-Geneviève (433); the linked towns are not in these data.
Source: Ville de Montréal, “Permis de construction, transformation et démolition”, open data, CC BY 4.0 · permits issued October 27, 2025 to October 26, 2026 · dataset updated October 29, 2026 · trades counted from the work descriptions.
5 public construction tenders are open in the West Island (Montréal), according to SEAO and CanadaBuys as of November 6:
The tenders board · only the official notice counts.
In the West Island, Pointe-Claire, Kirkland, Dollard-des-Ormeaux, Beaconsfield, Baie-D’Urfé, Sainte-Anne-de-Bellevue, Senneville and Dorval issue their own permits: in Pointe-Claire, through the online platform or by email to the Urban Planning Department; in Kirkland, through the Urban Planning Department’s “Gestion des permis en ligne” portal, where the PIIA By-law (PIIA-2022-55) covers all zones; in Dorval, through the Urban Planning Department, with PIIA (site planning and architectural integration) approval required to build or extend any residence and any building along chemin du Bord-du-Lac. Pierrefonds-Roxboro and L’Île-Bizard–Sainte-Geneviève are boroughs of Montréal: the first governs its construction and extension projects with a PIIA by-law and an architectural guide, and in the second, applications are as a rule filed in person at the permit counter. According to the City of Montréal, lead water service lines are very unlikely in these two boroughs.
Official pages: Submit a permit application – Pointe-Claire (in French) ↗ · Home renovations – Kirkland (in French) ↗ · Permit and certificate requests – Dorval (in French) ↗ · Renovations, extensions and new buildings in Pierrefonds-Roxboro (in French) ↗ · Permits and authorizations in L’Île-Bizard–Sainte-Geneviève (in French) ↗ · How to recognize a lead water service line – City of Montréal (in French) ↗