Best Insulation Contractors in Terrebonne, QC
15 contractors listed · 9 in Terrebonne · 1 open 24/7 · 5 open weekends · 12 rated 4.5+
Data verified October 17, 2026
LG4 Isolation
Isolation Solution Royal
Vitrerie ABC
Ecorenov
Les Toitures Martin Lafleur Inc.
The 15 contractors listed for Terrebonne, QC insulate attics, basements, headers and crawl spaces. Details under each one about materials, hours and advertised services are copied from the company's own site; star ratings and comments come from public reviews.

Area overview: Terrebonne, QC
9 of the 15 contractors we list are based in Terrebonne; the other 6 serve Terrebonne from Laval (16 km) and Montreal (22 km). The contractors on this page are rated from 4.1 to 5.0 across 3,498 reviews; 12 have 50 or more reviews and 12 are rated 4.5 or higher. When customers rate these contractors on specific qualities, they most often praise professionalism (94%), quality (75%) and value (73%). 1 is open around the clock; 5 are open on Saturdays and 3 on Sundays. 8 show a licence on their websites. Domain records put 5 websites of the contractors on this page at ten or more years old; the oldest dates from 2006. 2 offer emergency call-outs. We have a website on file for all 15 of the contractors on this page; 12 publish a contact page and 10 list a public email. We count these figures across the contractors on this page; distances are straight-line, and hours and prices change, so confirm the details with the contractor before you book.
Are all of these firms based in Terrebonne?
No. 9 have an address in Terrebonne and the rest come from other towns within 25 km. Rig and hose mean these crews cover a wide area from one yard. Ask whether your address falls inside the zone they work without a surcharge.