Spray Foam Insulation in Toronto & Ontario
Spray foam insulation Toronto homeowners choose for an airtight seal, higher R-values per inch, and long-term energy savings. We install open-cell and closed-cell spray foam for attics, basements, rim joists, garages, additions, and commercial buildings across Toronto and Ontario.
- Open-cell & closed-cell spray foam
- Residential & commercial projects
- Ontario building code compliant
- Licensed & insured installers
Code-Compliant Spray Foam Insulation in Ontario
All spray foam insulation is installed to meet Ontario Building Code requirements and applicable CAN/ULC standards (S705.1 / S705.2 when required). We follow manufacturer specifications, jobsite safety standards, and proper ventilation practices on every residential and commercial project. Our installations follow applicable Ontario Building Code requirements as outlined by the Government of Ontario.
Why Choose Spray Foam Insulation in Toronto?
Spray foam insulation outperforms traditional fiberglass and cellulose by creating a continuous air and moisture barrier. It expands on application to seal cracks, gaps, and penetrations that cause heat loss, drafts, and moisture problems in Ontario homes and commercial buildings. As a trusted provider of spray foam insulation Toronto homeowners and businesses rely on, we focus on performance, durability, and code compliance.
- Ontario Building Code compliant (CAN/ULC S705.1 & S705.2)
- High R-value per inch for maximum energy efficiency
- Seals air leaks, cracks, and moisture pathways
- Suitable for residential & commercial applications
- Installed by licensed & insured professionals
How Spray Foam Works
Spray foam insulation expands on application to fill gaps, seal cracks, and block air leakage—creating a tight building envelope that reduces drafts, moisture movement, and heat loss. Because it bonds directly to wood, concrete, and masonry, it outperforms traditional insulation materials and delivers long-term results in Ontario homes and buildings. This makes spray foam ideal for attic insulation, basement insulation, and rim joist insulation, where air leaks and moisture issues are most common. Spray foam is also widely used in commercial spray foam insulation projects where energy efficiency, durability, and building performance matter. When paired with professional fireproofing services, it helps improve fire resistance and meet Ontario building code requirements, making it a reliable solution for both residential and commercial applications
- Expands on contact to fill gaps and cracks
- Seals air leaks and moisture movement
- Bonds directly to wood, concrete, and masonry
- Delivers long-term insulation performance
Ready to Upgrade Your Insulation?
Get professional spray foam insulation installed by licensed experts serving Toronto and communities across Ontario.
Open-Cell vs Closed-Cell Spray Foam
Open-Cell Spray Foam
Open-cell spray foam is a lighter, more flexible insulation that expands to fill wall cavities and irregular spaces. It provides excellent air sealing and sound reduction, making it a popular choice for interior walls, attics, and residential applications where breathability is important.
- Expands easily into wall cavities
- Excellent air sealing and sound reduction
- More flexible and breathable material
- Commonly used in attics and interior walls
Closed-Cell Spray Foam
Closed-cell spray foam is a dense, rigid insulation with a higher R-value per inch. It adds structural strength, resists moisture, and creates a strong vapour barrier, making it ideal for basements, crawl spaces, rim joists, and commercial or industrial buildings.
- Higher R-value per inch
- Acts as a moisture and vapour barrier
- Adds strength to walls and structures
- Ideal for basements, rim joists, and commercial buildings
Where We Install Spray Foam Insulation
Ideal for reducing heat loss, improving comfort, and increasing energy efficiency in homes.
Helps control moisture, air leaks, and temperature fluctuations in below-grade spaces.
Seals one of the most common sources of air leakage in residential homes.
Improves comfort and insulation performance in attached garages and home additions.
Designed for offices, retail spaces, warehouses, and commercial buildings.
Custom spray foam solutions for specialized and industrial insulation needs.
Spray Foam Insulation Pricing Factors
Spray foam insulation pricing can vary depending on the scope of the project and the conditions of the space. Rather than using flat pricing, we assess each job individually to ensure accurate estimates and long-term performance.
- Area being insulated (attic, basement, rim joist, garage, or commercial space)
- Total square footage of the project
- Type of spray foam used (open-cell or closed-cell)
- Accessibility and condition of the space
- Residential vs commercial application
As a general reference, spray foam insulation projects in Toronto and across Ontario typically range from a few thousand dollars for smaller residential areas to higher costs for larger homes or commercial buildings. Final pricing depends on site conditions, insulation type, and project scope, which is why we provide custom estimates after an on-site assessment.
Spray Foam Insulation FAQs
How much does spray foam insulation cost per square foot in Toronto?
Most quotes depend on foam type, thickness, and access. As a general Toronto reference, professional installation is often cited in the range of about $1.50 to $4.90 per sq ft (varies by project and specs). The fastest way to get an accurate number is an on-site assessment.
How much does it cost to spray foam 1000 sq ft in Toronto / GTA?
For a 1,000 sq ft project in the Toronto area, you’ll commonly see totals in the $2,500 to $6,000 range depending on thickness, open vs closed-cell, and prep work. Exact pricing changes based on how many inches you need and what surfaces are being sprayed.
How much does it cost to spray foam a 24x24 garage?
A 24’ x 24’ (2-car) garage is commonly estimated around $3,000 to $8,000, with many examples citing an average near $6,000 when walls + ceiling + labor are included. Final cost depends on whether it’s attached, the coverage areas, and required R-value.
How much does 2 inches of spray foam cost?
Spray foam is often priced by the board foot (1 sq ft × 1 inch thick). At 2 inches, you’re using 2 board feet per sq ft. Published Canadian ranges often show roughly $0.50–$1.00/board foot (open-cell) and $1.25–$1.65/board foot (closed-cell) as reference pricing points—then installation, prep, and access affect your final installed rate.
Is open-cell or closed-cell spray foam more expensive?
Closed-cell is typically more expensive because it’s denser and delivers a higher R-value per inch. Common published references show open-cell around $0.50–$1.00/board foot and closed-cell around $1.25–$1.65/board foot, with installed project totals varying by thickness and scope.
What factors affect spray foam insulation pricing?
Pricing usually depends on:
Area type (attic, basement, rim joist, garage, commercial)
Square footage + thickness (inches / R-value)
Open-cell vs closed-cell
Access & prep work (old insulation removal, tight areas)
Residential vs commercial requirements
How thick should spray foam insulation be in Ontario?
Thickness depends on where it’s installed and target performance. Published guidance often suggests roughly 5–6 inches for open-cell or 3–4 inches for closed-cell for many Canadian climates, with adjustments based on code and building design. We confirm the right build-up during the estimate.
Are there rebates for insulation upgrades in Ontario?
Some Ontario homeowners may qualify for utility rebate programs (availability and eligibility vary). For example, Enbridge promotes home efficiency rebates that can apply to insulation/air sealing in certain cases.
Ready to Upgrade Your Insulation?
Get professional spray foam insulation installed by licensed experts serving Toronto and communities across Ontario.
Spray Foam Insulation Service Areas
Spray Foam Kings proudly serves Toronto, the GTA, and surrounding communities across Ontario. If you don’t see your city listed below, contact us to confirm availability.
- Toronto
- Mississauga
- Brampton
- Vaughan
- Markham
- Richmond Hill
- Oakville
- Milton
- Scarborough
- North York
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