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Why Retrofitting With Spray Foam Can Save On Heating Costs

Posted by Ecostar Insulation on December 16, 2025

Elevated heating bills are common for many Canadians, especially during the winter. As the weather cools down, your HVAC system needs to work hard to keep your home at a neutral 22 degrees Celsius, given how the temperature falls well below -10 in the winter. If you do not have high-quality insulation installed, that doesn’t mean that it is too late for an upgrade. A retrofit with spray foam insulation in Mississauga can go a long way in improving the comfort and energy efficiency of your home. Spray foam insulation’s R-value will help you save on heating costs for many winters to come. Contact EcoStar Insulation to learn more about retrofitting.

What is a Retrofit?

spray foam insulation mississaugaInsulation is often installed when a home is built, as all of the wall cavities are exposed for easy application. Retrofitting is an insulation application method that allows insulation to be installed once your home is already built. During this process, spray foam insulation can be injected into walls, allowing it to expand and create a barrier. This allows homeowners to significantly improve their energy efficiency without tearing down any walls. 

Common Energy Loss Issues in Older Homes

Many older homes suffer from energy loss and heat loss in a variety of ways. Air leaks are one of the most common ways. Openings in your attic, walls, basement, ceilings or windows can allow heat to escape your home. This leads to your HVAC system working harder to replenish the lost heat. 

Poor, damaged or old insulation can also lead to energy loss. Insulation is meant to create a heat barrier that prevents heat from escaping your home in the winter. However, if your insulation is damaged or simply old, heat will escape your home easily.

How Spray Foam Retrofitting Reduces Heat Loss

Spray foam insulation is one of the most reliable insulations on the market, and its high R-value is what supports better heat retention, reduced energy loss and lower heating costs. It is spray applied as a liquid, and as it dries down into a solid, it creates an airtight seal that envelopes your home. This prevents hot air from escaping your home and cold air from entering as spray foam fills in any gaps or cracks. Spray foam insulation’s R-value is between 4 and 7.5, meaning that heat cannot easily pass through the material, keeping your home warm all winter long. 

The Impact of Spray Foam on Heating Costs

The more heat your home loses, the harder your heating system has to work in order to keep your home at the desired temperature. This means that it will work harder for longer, expending more energy. The more energy your system uses, the higher your energy bills will be. The lower the R-value of your insulation, the more heat loss you will experience.

Since spray foam prevents heat from escaping your home in winter, your HVAC system will not have to work nearly as hard to keep your home comfortable. This leads to lower consumption and energy bills as a result. Many homeowners save anywhere from 20% to 50% on their energy bills for the indefinite future, given that spray foam lasts over 80 years.

Save on Heating Costs with a Spray Foam Insulation Retrofit

If you want to improve the comfort of your home through the winter, improve energy efficiency and reduce your energy bills, then spray foam insulation in Mississauga can help you achieve that. A retrofit allows you to benefit from spray foam insulation’s R-value without any major construction, making it highly convenient for most homeowners. Contact EcoStar Insulation today to get started!

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