Blown-In Insulation in Toronto & Ontario

Blown in insulation Toronto is a cost-effective solution for improving energy efficiency, comfort, and thermal performance in homes and buildings across Toronto and Ontario. It is commonly used in attics, wall cavities, and hard-to-reach areas where traditional insulation methods may fall short.

Spray Foam Kings provides professional blown-in insulation services for residential and commercial properties, helping reduce heat loss, control air leakage, and support long-term energy savings.

Blown-in insulation installation in a Toronto attic by professional insulation contractors

Code-Compliant Blown In Insulation Toronto & Ontario

Blown-in insulation installations must meet specific Ontario Building Code requirements related to thermal performance, coverage depth, and material safety. Proper installation is essential to ensure consistent insulation levels, effective air sealing support, and long-term durability.

At Spray Foam Kings, all blown-in insulation projects are completed in accordance with applicable Ontario Building Code standards and manufacturer specifications. We assess attic access, ventilation conditions, and existing insulation to ensure the final installation performs as intended.

Why Choose Blown-In Insulation in Toronto?

Toronto homes often experience heat loss through attics and wall cavities, especially in older houses and retrofit situations. Blown-in insulation is an effective solution for improving thermal performance in these areas without major renovations. It fills gaps, voids, and irregular spaces that traditional insulation may leave exposed.

For homeowners looking to improve comfort, reduce drafts, and lower energy costs, blown-in insulation offers a reliable and efficient option when installed correctly.

 

 

How Blown-In Insulation Works

Blown-in insulation is installed using specialized equipment that distributes loose-fill insulation evenly into attics or wall cavities. The material is blown through a hose, allowing it to settle around framing, wiring, and other obstructions to create consistent coverage.

This method is especially effective for retrofit applications and older homes where access may be limited. In some projects, blown-in insulation may be used alongside other solutions such as
spray foam insulation services to address specific air-sealing or moisture-control needs.

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

While blown-in insulation is effective for attics and retrofit applications, some projects may benefit from alternative solutions depending on air-sealing, moisture control, and structural requirements. In certain cases, blown-in insulation is used alongside spray foam insulation to address specific performance needs.

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.

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.

 

 

Where We Install Spray Foam Insulation

Blown-in insulation is commonly installed in attics and enclosed wall cavities, and may be used as part of a broader insulation strategy depending on the structure and access points of the property.

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

Blown-in insulation pricing depends on several factors including the size of the space, insulation depth required, accessibility, and existing insulation conditions. Each project is assessed individually to determine the appropriate coverage and material requirements.

 

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.

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.

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. 

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.

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.

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

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.

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.

Get a Blown In Insulation Estimate

Serving Toronto, the GTA, and communities across Ontario. Fast quotes. Licensed professionals. No obligation.

Serving: TorontoMississaugaEtobicokeScarboroughVaughanMarkhamNewmarketRichmond HillOshawaAjaxPickeringAuroraNorth YorkBrockvilleKingstonOttawaBrampton
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