Your basement is one of the largest and most overlooked sources of heat loss in a home. According to Natural Resources Canada, an uninsulated basement can increase a home's energy consumption by 25% or more. Isolation Majeau provides professional basement and foundation insulation for homeowners across Greater Montreal, Laval, the South Shore, Lanaudière, and the Laurentians, whether your basement is finished, unfinished, or somewhere in between.
A basement loses heat in two directions at once. Below grade, cold concrete foundation walls pull warmth out of the home year-round. Above grade, the rim joists and the top of the foundation are exposed to the outside air and are often among the leakiest parts of the entire house - Isolation Majeau commonly finds that this is a leading cause of air leakage and inadequate insulation with our customers. Together, that adds up to a significant, constant impact on your heating and cooling.
The key to a basement that stays warm, dry, and mould-free is an insulation system that seals air and controls moisture at the same time as it insulates. In Quebec's environment, that's even more important.
Isolation Majeau always works with the homeowner to choose the insulation and install type that works best for your home and budget:
Closed-cell spray foam adheres directly to concrete, delivers about an R-6 per inch of insulative value, and acts as its own air and vapour barrier when installed at the correct thickness by a professional. Because it expands to fill every gap and crevice, it stops air leakage and condensation risk that can affect other insulation products.
For finished or framed basement walls, we can pair spray foam insulation with other materials as the assembly requires, always installed with the air sealing and vapour barrier that Quebec's climate needs to avoid future issues.
While we often recommend spray foam insulation for basements, it isn't hte only way we can insulate one, and isn't the right fit for every homeowner or project. Our teams can also insulate your basement with fibreglass or stone wool batt insulation instead, either fitted between framing for a basement that will be finished, or applied as a blanket wrap around the foundation. Both are installed with the proper vapour barrier for the assembly.
Not sure which option is right for your basement? Get in touch, and we'll help walk you through the choices and recommend what fits your home, your goals, and your budget.
Isolation Majeau has been insulating homes across the Greater Montreal region for over 55 years, completing more than 4,000 insulation projects a year. We're trusted not only by homeowners but by local construction and renovation contractors who rely on our expertise each year. We install quality products from leading manufacturers, backed by their warranties, and our experienced crews install them to meet current Quebec building code. When it comes to the moisture and air-sealing challenges specific to Quebec basements, that local experience is what separates a basement that stays dry and comfortable from one that causes problems down the road.
Get in touch with Isolation Majeau today to discuss your basement insulation project!
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