Spray foam insulation is a popular option for homeowners and property owners in Montreal because of its advanced performance and longevity. When upgrading your insulation or choosing the right insulation for a new build, spray foam insulation is a consistent consideration. In addition to its long lifespan compared to other insulation products in the market, choosing spray foam for your home insulation in Montreal can significantly boost your energy efficiency and reduce the cost of your energy bills. With Isolation Majeau et frères, you can count on high-quality home insulation in Montreal and expert spray foam insulation installation.
Here are some of the ways investing in spray foam insulation costs with Isolation Majeau can help reduce your energy bills and keep more money in your wallet.
Creates an Energy Efficient Seal

Spray foam insulation works by expanding to fill every crack, gap, and space in the walls, ceilings, and floors. Unlike fibreglass or cellulose insulation, spray foam creates an airtight barrier that minimizes thermal bridging and stops heat from escaping during winter or entering during summer.
When your home is effectively sealed with spray foam insulation, both your furnace and air conditioner don’t have to work as hard to maintain the ideal temperature, which translates into noticeable savings on your monthly utility bills.
Reduce Heating & Cooling Costs
Because spray foam insulation offers a higher R-value per inch than most conventional types of home insulation in Montreal, you can achieve better energy performance with less material. This is especially beneficial for tight spaces like attics, rim joists, or crawl spaces that can’t accommodate thicker layers of other materials, allowing you better coverage with your insulation.
When installed properly, spray foam can reduce air leakage by up to 50% compared to standard insulation methods. Over time, those savings add up, allowing homeowners to reduce heating costs in the winter and air conditioning costs during hot, humid summers in Montreal.
Prevent Moisture and Drafts
Spray foam insulation is especially useful in preventing moisture and air infiltration, which are two of the most common causes of energy loss and high utility bills. Closed-cell spray foam acts as a vapour barrier and resists water penetration, protecting your home and insulation from the harmful effects of mold. By being moisture resistant, spray foam insulation can withstand water and mold damage, allowing your insulation to keep working for longer without putting any additional strain on your heating and cooling systems.
When used for home insulation in Montreal, spray foam is a smart option for homes with older construction or those undergoing energy retrofits. When used in retrofits and older homes, spray foam insulation in Montreal keeps out pollutants and allergens and improves indoor air quality in addition to regulating indoor temperatures. For more insight into what you can expect with spray foam insulation installation in your Montreal home, contact the team at Isolation Majeau.
Long-Term Value That Outlasts Traditional Insulation
One of the most notable advantages of spray foam insulation is its longevity. Once applied, it doesn’t shift, settle, or degrade the way other materials can over time. Research suggests that high-quality spray foam insulation can last up to 80 years, delivering almost a lifetime’s worth of energy efficiency.
Save On Energy Bills with Spray Foam Insulation and Isolation Majeau et frères.
While the upfront cost of spray foam may be higher than fibreglass or batt insulation, the long-term return on investment makes it well worth considering, especially in a city like Montreal, where insulation is essential to weather comfort.
At Isolation Majeau, our experienced team delivers professional installation and high-performance results you can trust. To explore your options for spray foam insulation and affordable, long-lasting home insulation in Montreal, contact us today. We’ll help you assess your space, recommend the right product, and start you on the path to lower energy bills and greater home comfort.
This article was originally published on July 8, 2025 by François Morissette