Roofing companies and roofers in Greater Montréal

403 companies in Greater Montréal listed as active in RBQ data dated November 3, 2026. Choose your city.

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Roofing companies and roofers in Greater Montréal at a glance

As of November 3, 2026, 403 companies in Greater Montréal hold an active RBQ licence for this trade, 37% of the 1,083 companies in Quebec. It is trade number 12 of 15 by number of companies in the region.

Two kinds of roof dominate Greater Montréal: the flat roof of the island’s duplexes, triplexes and apartment buildings, covered with elastomeric membrane, built-up roofing or a white membrane, and the pitched roof of suburban houses, covered with asphalt shingles or metal. A roofer repairs a leak, redoes a whole roof, replaces flashing or improves attic ventilation. Some boroughs regulate flat roofs (colour, material): check before you choose.

Where the companies are

Breakdown: the Island of Montréal 91, Laval 43, the South Shore 129 and the North Shore 140. On the island, Rivière-des-Prairies–Pointe-aux-Trembles has the most (20), ahead of West Island (16), Saint-Léonard (11), LaSalle (8) and Saint-Laurent (7). Outside the City of Montréal: Laval (43), Mirabel (27), Terrebonne (26), Longueuil (19), Mascouche (15), Blainville (14), Sainte-Anne-des-Plaines (9) and Repentigny (8).

On the Island of Montréal, 45 of the 91 companies in this trade (49%) have held their licence for 10 years or more, the oldest since 1984; 2 got theirs in the last 90 days. Many also work in other trades: specialty work (50), renovation (34) and heating and cooling (13). 91 show a phone number, 87 of them in 514 or 438.

Before you hire: roofing companies and roofers

The roofers in this list hold subcategory 7 (insulation, waterproofing, roofing and exterior cladding) and roofing appears in their name. Ask for a written quote that states the type of shingles or membrane, removal of the old roofing and the warranty.

For a fair quote, give the type of roof, the rough area, the age of the covering, what you have noticed (ceiling stains, lifted shingles, ice at the edge in winter) and how the roof is reached. A serious company inspects the roof before pricing.