Spray Foam Insulation in Toronto, Ontario
Closed-cell and open-cell polyurethane foam that air-seals and insulates in a single application — the highest R-value per inch available for GTA homes and commercial buildings.
The local picture
In century homes across the old city there is no continuous air barrier to work with, which is where closed-cell foam earns its cost: it seals and insulates in one pass, in assemblies too irregular for batts. We use it where access is tight — rim joists, knee walls, cathedral ceilings and crawl spaces.
Pre-war housing in the core, post-war bungalows in the inner suburbs
Service details
How the job runs
Air-leak assessment
We locate where conditioned air is escaping before proposing anything.
Surface preparation
Old material removed if needed, cavities cleaned, sensitive areas masked.
Foam application
Applied in controlled lifts to the specified thickness, with curing time respected.
Trim, inspect, document
Excess trimmed, coverage verified, and the finished depth recorded for your file.
What we see in these homes
- Knob-and-tube-era attics with little or no air sealing above the top plate
- Solid masonry and balloon-frame walls with uninsulated cavities
- Finished basements insulated before vapour control was understood
Typical ranges
Open-cell and closed-cell foam are priced differently and suit different assemblies. Here are the market ranges, what drives them, and why the right answer depends on the space rather than the price list.
Spray Foam Insulation Cost in Toronto & the GTAQuestions about this service
Is spray foam safe once cured?
Once fully cured and ventilated, the foam is inert. We follow the manufacturer's re-occupancy times and tell you exactly how long to stay out of the treated area.
Closed-cell or open-cell — which do I need?
It depends on the assembly, the space available and your budget. We recommend one over the other after seeing the site, not before.
Can it be applied over existing insulation?
Usually not. Foam needs to bond to a clean substrate, so old batts or blown-in material generally come out first.