Insulation Cost in Ontario
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If you are planning to insulate your home, garage, or commercial space, one of the first questions is cost.
Spray foam insulation is one of the most effective insulation methods available in Ontario. It provides excellent energy efficiency, air sealing, and long-term durability compared to traditional insulation.
In this guide, you will learn real spray foam insulation costs in Ontario, what affects pricing, and how to estimate your project accurately.
Get a fast estimate here: https://sprayfoamgl.ca/get-quote/
Average Spray Foam Insulation Cost in Ontario
Spray foam insulation is typically priced per board foot. A board foot is equal to one square foot at one inch thick.
Typical pricing in Ontario:
Open-cell spray foam: $0.60 to $1.00 per board foot
Closed-cell spray foam: $1.25 to $2.50 per board foot
Estimated project costs:
Garage insulation: $1,500 to $4,000
Basement insulation: $2,000 to $6,000
Full home insulation: $10,000 to $30,000 or more
The final cost depends on the size of the project, required thickness, and the type of material used.

What Affects Spray Foam Insulation Cost in Ontario
Several factors influence the final price of spray foam insulation.
Thickness and R-value
Higher insulation levels, such as R-20 or R-31, require more material. This increases the cost but significantly improves energy performance.
Project size
Larger projects often reduce the cost per square foot due to better efficiency in setup and application.
Accessibility
Tight or complex spaces require more labour and time, which can increase the total cost.
Type of foam
Closed-cell spray foam costs more but provides a higher R-value, acts as a moisture barrier, and adds structural strength.
Is Spray Foam Insulation Worth It
Spray foam insulation is a long-term investment that delivers real value.
It helps reduce energy bills, eliminates drafts, improves indoor comfort, and protects against moisture. It also lasts significantly longer than traditional insulation materials.
Many property owners recover their investment over time through reduced heating and cooling costs.
Spray Foam vs Fibreglass Insulation
Spray foam insulation outperforms fibreglass in several important ways.
It creates an airtight seal, while fibreglass allows air leakage.
Lasts more than 20 years, whereas fibreglass can degrade faster.
Resists moisture, whereas fibreglass can absorb it.
Because of these advantages, spray foam is widely used in modern construction and renovation projects across Ontario.

Open-Cell vs Closed-Cell Spray Foam
Closed-cell spray foam is dense and provides a higher R-value. It is ideal for basements, garages, and exterior walls where moisture protection is important.
Open-cell spray foam is lighter and more affordable. It is commonly used for interior walls and ceilings, and also provides soundproofing benefits.
For Ontario climate conditions, closed-cell spray foam is generally the better choice for exterior applications.
Why Choose Spray Foam GL
Spray Foam GL provides professional insulation services across Mississauga and the Greater Toronto Area.
We use certified Canadian materials such as Genyk, Elastochem, and Grizzly Gold to ensure long-lasting performance and compliance with industry standards.
Our team focuses on quality workmanship, accurate estimates, and reliable service for both residential and commercial projects.
Explore our services: https://sprayfoamgl.ca/our-services/
Need equipment: https://sprayfoamgl.ca/equipment-rental/

Get an Accurate Quote
Every project is different. The best way to determine your cost is to request a quote based on your specific requirements.
Request your quote here:
https://sprayfoamgl.ca/get-quote/
Serving Ontario and GTA
We provide spray foam insulation services in Mississauga, Toronto, and across the Greater Toronto Area.
Whether you are insulating a garage, basement, or new construction, we deliver efficient and long-lasting results tailored to your project.


