Spray foam insulation in Montréal
The highest-performing insulation for targeted areas of your Montréal home — basement, rim joist, crawl space.
Why spray foam in Montréal
Spray polyurethane delivers about R-6 per inch — the best insulating value per inch on the market — and acts as an air and vapour barrier in a single step. With Grand Montréal winters, it's the go-to for areas where cold air leaks in: foundation walls, rim joists, crawl spaces and cathedral ceilings.
Where we use it (and where we don't)
We recommend spray foam where it's truly the best choice: basements and foundations (no more cold-wall effect), rim joists (the #1 air leak in Quebec homes), crawl spaces and flat roofs. For a standard attic, blown insulation is often more economical at equal R-value — we tell you straight, and our calculator compares both.
The process, done right
Surfaces prepped and protected, controlled spraying by our certified installers with late-generation Graco equipment, thickness checked to the inch, and ventilation during curing. You're back in the space within 24 h.
Frequently asked questions — Montréal
How much does spray foam cost in Montréal?
The price depends on the area, target thickness and access. Enter your address in the calculator: your estimate shows up in 2 minutes, no visit and no salesperson.
Spray foam or blown insulation for my project?
Spray foam wins for basements, rim joists, crawl spaces and flat roofs. For a standard attic, blown insulation at R-50/R-60 is often more economical — we honestly recommend the best option, not the most expensive one.
Is it safe? How long before I can use the room again?
Yes — our installers are certified and the area is ventilated during curing. We recommend staying out of the sprayed area for 24 h while the product fully cures.
How fast can you do the work in Montréal?
Installation is usually scheduled within 24 to 48 hours after you accept the quote. Most spray foam projects are completed in half a day.
Our other services in Montréal
- Attic insulation (blown R-50 / R-60)
- Spray foam
- Attic decontamination
- Vermiculite & asbestos removal
- Insulation removal