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None of these companies is based in Saint-Léonard; they work from towns including Saint-Hubert, Saint-Laurent and Saint-Eustache.
24 companies listed · 4 open 24/7 · 8 open weekends · 19 rated 4.5+ · 9 show a licence
Data verified October 17, 2026
The 24 companies listed for Saint-Léonard, QC handle furnaces and heat pumps in winter and the cooling side in summer. Profiles repeat what each firm publishes about hours, licensing and brands, with ratings and review quotes gathered from public reviews.

The 24 companies on this page are rated from 4.2 to 5.0 across 4,381 reviews; all 24 have 50 or more reviews and 19 are rated 4.5 or higher. When customers rate these companies on specific qualities, they most often praise professionalism (93%), quality (66%) and punctuality (61%). The topics that come up most in reviews of the companies on this page are "price", "cleanliness" and "communication". 4 are open around the clock; 8 are open on Saturdays and 5 on Sundays. The services the companies on this page list most often on their websites are chauffage (4), thermopompe (3), financement (2), subventions (2) and ventilation (2). 9 show a licence on their websites. Domain records put 11 websites of the companies on this page at ten or more years old; the oldest dates from 2001. 5 offer emergency call-outs; 1 offers financing or payment plans; 1 gives free estimates and 13 list coupons or special offers. We have a website on file for all 24 of the companies on this page; all 24 publish a contact page and 23 list a public email. We count these figures across the companies on this page; hours and prices change, so confirm the details with the company before you book.
Saturday or Sunday hours show up for 8 of the 24 companies on this page. Saturday is mostly repair work; installations land on weekdays, because supply houses and municipal inspectors keep weekday hours.