How Much Does it Cost to Spray Foam 1000 Square Feet?
- NFW Author
- Mar 20
- 2 min read
Updated: Apr 3

Spray foam insulation is a popular choice for enhancing energy efficiency and comfort in Canadian homes and workplaces. The cost to insulate 1,000 square feet depends on several factors, including the type of spray foam used, the desired R-value, and the construction of the building.
Types of Spray Foam Insulation
There are two primary types of spray foam insulation: open-cell and closed-cell. Open-cell spray foam is less dense, providing an R-value of approximately 3.5 per inch, and is typically used for interior applications. Closed-cell spray foam is denser, offering a higher R-value of around 6.5 per inch, making it suitable for both interior and exterior applications.
Cost per Square Foot
The cost of spray foam insulation is generally calculated per board foot (one square foot at one-inch thickness). In Canada, open-cell spray foam costs approximately $0.44 to $0.65 per board foot, while closed-cell spray foam ranges from $1.00 to $1.50 per board foot.
Calculating Costs to Spray Foam Insulate 1,000 Square Feet
To estimate the cost of insulating a 1,000-square-foot area, consider the desired R-value and corresponding foam thickness. For example, achieving an R-22 rating with closed-cell spray foam would require approximately 3.5 inches of insulation. At $1.00 to $1.50 per board foot, the cost would range from $3.50 to $5.25 per square foot. Therefore, insulating 1,000 square feet would cost between $3,500 and $5,250.
Additional Factors Influencing Cost
Several factors can affect the overall cost of spray foam insulation:
Labour Costs: Professional installation fees can vary based on the complexity of the project and regional labour rates.
Accessibility: Hard-to-reach areas or spaces requiring additional preparation may increase labour costs.
Existing Insulation Removal: If old insulation needs to be removed, this can add to the total project cost.
Local Market Conditions: Prices can vary depending on the region and availability of contractors.
The cost to spray foam insulate 1,000 square feet in Canada varies based on the type of foam, desired R-value, and other project-specific factors. On average, homeowners can expect to invest between $3,500 and $5,250 for closed-cell spray foam insulation at an R-22 rating.
For a more specific project quote for insulation in Central Alberta get in touch now!
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