If you’re a homeowner in Toronto or anywhere across Ontario, your crawl space could be costing you hundreds in wasted energy each year. Many Ontario homes built before the 1990s have uninsulated or poorly insulated crawl spaces that create cold floors, moisture problems, and sky-high heating bills during our brutal winters.

Why Do Ontario Homes Need Crawl Space Insulation?

Ontario’s climate demands proper crawl space insulation. With temperatures dropping to -20°C or lower, an uninsulated crawl space acts like a refrigerator beneath your home. Cold air seeps through the floor joists, making your heating system work overtime. The Ontario Building Code now requires minimum R-10 to R-20 insulation in crawl spaces for new construction and major renovations.

Beyond energy efficiency, spray foam insulation in your crawl space solves moisture problems that plague Ontario homes. Our humid summers and freeze-thaw cycles create condensation that leads to mold, wood rot, and pest infestations. Closed-cell spray foam creates an impermeable vapor barrier that stops moisture dead.

Spray Foam vs Traditional Crawl Space Insulation

Traditionally, Ontario contractors used fiberglass batts or rigid foam boards in crawl spaces. While better than nothing, these methods have serious drawbacks:

Fiberglass Batts: Absorb moisture, sag over time, provide incomplete coverage, and become a nesting ground for pests. After 5-10 years, they’re often moldy and ineffective.

Rigid Foam Boards: Require precise cutting around pipes, wires, and ductwork. Gaps and seams reduce effectiveness. Doesn’t seal air leaks.

Closed-Cell Spray Foam: The superior choice for Ontario crawl spaces. It expands to fill every gap and crack, adheres directly to surfaces, provides both insulation and air sealing in one application, and creates a moisture barrier. With an R-value of R-6 to R-7 per inch, it exceeds code requirements in less space.

The Crawl Space Insulation Process

Professional crawl space insulation from Spray Foam Kings follows a proven process:

Assessment: We inspect your crawl space for moisture issues, pest damage, and existing insulation condition
Preparation: Clean the area, remove old insulation if necessary, and address any moisture or mold problems first
Vapor Barrier: Install ground vapor barrier if not present (prevents soil moisture from entering)
Spray Foam Application: Apply 2-3 inches of closed-cell spray foam to walls and rim joists
Quality Check: Verify complete coverage and proper thickness throughout

Energy Savings and ROI for Ontario Homeowners

Properly insulating your crawl space delivers immediate and long-term benefits:

Energy Cost Reduction: Most Ontario homeowners see 15-25% reduction in heating bills. With Ontario’s high hydro rates, this translates to $300-800 in annual savings.

Comfort Improvement: Eliminate cold floors and drafts. Rooms above the crawl space become noticeably warmer in winter and cooler in summer.

Moisture and Mold Prevention: Stop the cycle of dampness that damages your home’s structure and affects indoor air quality.

Pest Deterrent: Sealed crawl spaces deny entry to mice, raccoons, and insects common in Ontario.

Home Value: Energy-efficient upgrades increase resale value and appeal to eco-conscious buyers.

Rebates and Incentives Available in Ontario

Ontario homeowners can offset crawl space insulation costs through the Enbridge Home Efficiency Rebate Plus (HER+) program. Qualifying upgrades can receive up to $10,000 in rebates. Spray Foam Kings handles all the rebate paperwork for you.

Get Your Free Crawl Space Assessment

Don’t let another Ontario winter drain your wallet through an uninsulated crawl space. Spray Foam Kings has insulated thousands of crawl spaces across Toronto, Ottawa, Hamilton, and throughout Ontario. We provide free assessments, transparent pricing, and lifetime warranties on our work.

Call us today at (647) 641-6881 or visit sprayfoamkings.ca/contact to schedule your free in-home crawl space evaluation.

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Don’t let another Ontario winter drain your wallet—insulate smart, save forever.