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Spring vs. Fall: The Best Season for Spray Foam Insulation

Spray foam insulation has become the go-to insulation option for homeowners who want to reduce energy costs and increase the comfort of their homes. It is a highly effective insulation material that can be used in areas such as attics, walls, and basements.

However, because of the extreme weather conditions in Canada, homeowners often wonder when the best time to install spray foam insulation is. In this article, we will compare spring and fall to determine the best season to hire residential spray foam insulation services in Canada.

Temperature and Humidity 

The temperature and humidity levels in Canada vary depending on the season. In the spring, temperatures are mild, and humidity levels are low. On the other hand, fall temperatures are cooler, and humidity levels are higher. These factors are essential when it comes to installing spray foam insulation.

Spray foam insulation needs a specific temperature range to cure correctly. If the temperature is too hot or too cold, the insulation may not adhere properly, leading to gaps and air leaks.

Spring temperatures are perfect for spray foam insulation because they are warm enough to allow the insulation to cure but not too hot to cause expansion or shrinkage. Fall temperatures, on the other hand, can be too cold for the insulation to cure properly, leading to poor adhesion.

Humidity is another critical factor when it comes to insulation installation. High humidity levels can affect the curing process, leading to poor adhesion and reduced insulation effectiveness. Spring has lower humidity levels, making it the perfect season for spray foam insulation installation.

Availability of Contractors

Another factor to consider when choosing a season for spray foam insulation installation is the availability of contractors. The demand for residential spray foam insulation services increases during winter and summer, leading to a shortage of contractors during these seasons. However, there is less demand for services during spring and fall, making it easier to find a reputable contractor for your project.


The cost of residential spray foam insulation services varies depending on the season. During peak seasons, such as winter and summer, the installation cost may be higher due to increased demand. However, during spring and fall, the demand for insulation services is low, leading to lower installation costs. Therefore, if you want to save money on your insulation project, we suggest scheduling the installation in spring or fall.

Energy Savings

The primary reason for installing spray foam insulation is to save energy costs. Spray foam insulation is a highly effective insulator that can reduce energy costs by up to 50%. However, the effectiveness of the insulation depends on the season it is installed.

During the winter, insulation is essential in keeping the home warm, while during the summer, insulation keeps the home cool. Therefore, installing insulation during the spring or fall can provide energy savings year-round.


In summary, spring is the best season for residential spray foam insulation installation in Canada. Installing insulation during the spring can provide energy savings throughout the year, making it a cost-effective option for homeowners.

Looking for a spray foam insulation contractor? Hire PolarTech Spray Foam. We have been in the business for over 36 years and are certified applicators by the Canadian Urethane Foam Contractors Association (CUFCA). Book a service today.

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