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Spray Foam Insulation in Toronto & Ontario
Residential, commercial, and industrial spray foam insulation services designed to improve energy efficiency, comfort, and long-term performance across the GTA and Ontario.
- Open-cell & closed-cell spray foam
- Attics, basements, walls, and commercial buildings
- Industrial Fireproofing Insured Company
- Licensed, experienced installers
- Serving Toronto & surrounding Ontario areas
- Blown in Insulation Services
- Roofing Spray Foam
- Polyurea Coating
- Licensed, insured & bonded spray foam contractor
Our Spray Foam & Fireproofing Insulation Services across Canada
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WHY CHOOSE US
Trusted Spray Foam & Insulation Experts
Energy-Efficient Solutions
Our spray foam insulation reduces air leakage, improves comfort, and lowers long-term energy costs.
Licensed & Insured
Fully certified spray foam installers with strict safety and building-code compliance.
Residential & Commercial Experts
From homes and basements to large commercial and industrial buildings, we handle projects of all sizes.
Licensed, Insured & Bonded for Commercial Projects
Spray Foam Kings is a fully licensed, insured, and bonded spray foam insulation contractor serving Toronto and Ontario. Bonding allows us to work on larger commercial, industrial, and institutional projects where financial assurance, compliance, and contractor accountability are required.
Our team meets site requirements for general contractors, property managers, developers, and facility operators across residential, commercial, and industrial builds. Spray Foam Kings provides professional spray foam insulation services across Toronto, including North York, Scarborough, and East York.
Spray Foam Insulation FAQs – Toronto & Ontario
How much does spray foam insulation cost in Toronto and Ontario?
Spray foam pricing in Toronto & Ontario is usually quoted per board foot (1 sq ft at 1” thick), and the range depends on foam type, thickness (R-value target), and access. As a rule of thumb, open-cell often lands around $0.35–$0.65 per board foot, while closed-cell is commonly $1.00–$1.50+ per board foot; when you convert that to a “per sq ft of area,” the total changes based on how many inches you need. For budgeting, many Ontario projects fall into broad installed totals like $1,500–$3,000 (small areas), $3,000–$5,000 (medium areas), and $10,000–$20,000+ (full-home scale), but the only accurate number comes from measuring the area, confirming required thickness, and checking site conditions.
How long do I need to stay out of the house after spray foam insulation?
Most projects require a short vacancy while the foam cures and the space is ventilated; many pros recommend 24–48 hours depending on product and job conditions. If odor is noticeable beyond that window, the fix is usually more ventilation and an installer check to confirm proper mixing and cure..
What’s the difference between open-cell and closed-cell spray foam?
Open-cell is lighter, expands more, and is often used for interior applications where you want air-sealing and sound control; closed-cell is denser, delivers higher insulation per inch, and is commonly chosen for below-grade areas, rim joists, and demanding commercial insulation uses. For quick context, many references list open-cell around R-3.6 to R-3.8 per inch and closed-cell around R-5.5 to R-6.5 per inch.
Is spray foam insulation safe, and will it off-gas?
Spray foam can smell during installation and early cure, which is why ventilation and proper application matter. When installed correctly and allowed to cure, off-gassing drops dramatically—so “safe” comes down to materials + correct install + ventilation
Is spray foam a good choice for attics in Ontario?
Yes—attics are one of the biggest leak points in Ontario homes, and spray foam’s strength is air-sealing. Many homeowners compare it to blown-in because blown-in insulation can be cheaper upfront, while spray foam can deliver stronger sealing and comfort; the right choice depends on attic design, budget, and whether you’re insulating the attic floor or the roofline.
Can spray foam help with basement dampness or mold risk?
Closed-cell spray foam is often chosen for basements and rim joists because it can act as insulation + moisture control when applied to a properly prepared, dry substrate. The key is not trapping existing moisture—any active water issue should be addressed first, then foam becomes a strong part of the solution.
Do you remove old insulation before spraying (attic or basement)?
Often, yes—especially if existing insulation is wet, contaminated, or blocking access to air leaks that need sealing first. In some cases, leaving old material can trap odors or hide issues, so we assess the space and recommend the cleanest, most durable approach for performance and indoor air quality.
Is spray foam insulation code-compliant in Ontario?
In Ontario, medium-density spray polyurethane foam installations are generally tied to the CAN/ULC-S705.2 application standard referenced by the Ontario Building Code. Practically, that means the install must follow recognized procedures and certification requirements—not DIY shortcuts—especially when foam is serving as an air/vapour control layer.
Are there rebates in Ontario for insulation upgrades?
Yes—Ontario programs can offer rebates for insulation improvements, including attic and foundation/basement-related upgrades, depending on eligibility and program rules. A common path homeowners use is Enbridge’s Home Efficiency Rebate Plus (and related Ontario efficiency programs), which can include insulation incentives
How long does a typical spray foam job take?
Many attic or basement jobs can be completed in a day, while larger homes or commercial spaces may take longer depending on prep, masking, access, and thickness requirements. We confirm timing and re-entry guidance before the job starts so there are no surprises
What is spray-applied fireproofing (SFRM), and when is it needed?
SFRM (spray-applied fire-resistive material) is a passive fire protection coating used on structural steel and assemblies to help meet required fire ratings on commercial/industrial projects. It’s commonly specified by engineers/architects for warehouses, multi-unit buildings, and structural steel where fire resistance is required by design.
Why do commercial projects specify CAFCO / Isolatek fireproofing systems?
CAFCO/Isolatek systems are widely documented and tested across many assembly types, which helps designers specify to listings and helps contractors execute to manufacturer guidance. The “why” is simple: clearer specs, proven systems, and better alignment with tested designs and documentation.
