Isolation Equinoxe Plus
“As the work progressed, they took the time to explain to me the work they had carried out and a big thank you to Daniel who reassured me about the concerns I had.”
Best Insulation Contractors near Saint-Jean-sur-Richelieu, QC
These contractors serve Saint-Jean-sur-Richelieu from nearby bases in towns including Saint-Hubert, Saint-Mathieu-de-Beloeil and Brossard.
10 contractors listed · 2 open 24/7 · 5 open weekends · all 10 rated 4.5+ · 6 show a licence
Data verified October 17, 2026
Toiture Union
“Very professional team and Pierre is the only one of the contractors I tendered to have been installed in the attic.”
Solution Isolation
“Thanks to Jacob's team for coming back to do the touch ups on my attic!”
Toiture Equinox
“The best roofer in the Mont-Saint-Hilaire region”
Nord-Sud Toitures Inc
“All the work was done in less than a day!”
Iso Fuzion
“Reliable, professional, accessible, very concise in relaying information, honest, a pleasant and attentive entrepreneur who listens to the customer, all at a competitive price.”
The 10 contractors listed for Saint-Jean-sur-Richelieu, 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: Saint-Jean-sur-Richelieu, QC
The 10 contractors on this page are rated from 4.5 to 5.0 across 779 reviews; 4 have 50 or more reviews. When customers rate these contractors on specific qualities, they most often praise professionalism (92%), quality (65%) and value (55%). 2 are open around the clock; 5 are open on Saturdays and 2 on Sundays. 6 show a licence on their websites. Domain records put 3 websites of the contractors on this page at ten or more years old; the oldest dates from 2011. 2 offer emergency call-outs. We have a website on file for all 10 of the contractors on this page; 7 publish a contact page and 8 list a public email. We count these figures across the contractors on this page; hours and prices change, so confirm the details with the contractor before you book.
How many listings here have a website?
A website is on file for all 10 contractors here. Look for the materials they install and whether they do attics, basements or both, because plenty of crews specialize in one. Where there is no site, ask the same questions by phone before booking a visit.
Isolation JCD Inc.
“I highly recommend it for large or small jobs.”
Monsieur Calfeutrage
“Number 1 service, a big thank you to the team”
Toiture G Viens
Les Toitures E Bourgeois Inc
“I am very satisfied with their work.”
Why these companies made our list
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