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None of these companies is based in Saint-Hyacinthe; they work from towns including Saint-Hubert (40 km), Saint-Jean-sur-Richelieu (42 km) and Saint-Philippe (50 km).
24 companies listed · 3 open 24/7 · 8 open weekends · 19 rated 4.5+ · 12 show a licence
Data verified October 21, 2026
The 24 companies listed for Saint-Hyacinthe, 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 2,711 reviews; 18 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 (92%), quality (67%) and value (67%). 3 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 (3), ventilation (3), financement (2) and thermopompe (2). 12 show a licence on their websites. 11 have ten or more years of experience, the longest 26 years. 3 offer emergency call-outs and 9 list coupons or special offers. We have a website on file for all 24 of the companies on this page; 18 publish a contact page; 18 list a public email and 1 takes bookings online. We count these figures across the companies on this page; distances are straight-line, and hours and prices change, so confirm the details with the company before you book.
Round the clock cover is stated in 3 of the 24 listings here. On a winter night that call is worth making early, because a house left without heat can freeze pipes before morning. Expect a temporary fix and a return visit once parts are available.
