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Montreal's trusted insulation specialists, serving the Greater Montreal Area since 1967.

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Montréal's Trusted Insulation Experts: Serving the Greater Montreal Area Since 1967

Isolation Majeau et Frère provides professional insulation and soundproofing services for homeowners and property owners across Greater Montreal, Laval, the South Shore, Lanaudière, and the Laurentians.

Our selection of high-performance spray foam, cellulose, and batt insulation helps reduce heat loss, protect your HVAC equipment, and lower monthly energy costs. With over 55 years of local experience and reliable service, our experienced technicians help property owners improve efficiency, performance, and everyday comfort for thousands of projects every year.

Get your free quote today!

Explore Our Services

Home Insulation

Wall Insulation

Basement Insulation

Attic & Roof Insulation

Floor & Ceiling Insulation

Soundproofing

Insulation and Soundproofing Products

Our professional teams install only industry-leading insulation products with warranties from leading manufacturers, which are among the most effective and environmentally friendly products available..

Spray foam insulation
Highly-sustainable, Canadian-made cellulose
Batt insulation
Soundproofing
Thermal barriers

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Getting Started with
Isolation Majeau et Frère

Get in Touch

Call or fill out our online form. We serve homeowners across Greater Montreal, Laval, the South Shore, Lanaudière, and the Laurentians, and we respond within 48 hours!

Site
Assessment

As needed, a trained and experienced technician will show up on site and assess your insulation needs and provide an estimate and scope of work.

Professional Installation

Our experienced crews arrive on time and complete the work cleanly, efficiently, and with minimal disruption to your day.

Lower Bills & Better Comfort

Experience the benefits of upgraded and new insulation, save on your utility bills, and live more comfortably.

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Why Choose Us

60+ Years of Local Expertise

Since 1967, we've been the insulation specialists for homeowners across Greater Montréal, Laval, Montérégie, Lanaudière, and the Laurentians. Our technicians understand the specific challenges of Quebec's climate and building codes.

Certified & Recognized

We are a recognized Rénoclimat contractor and a member of APCHQ. Our applicators hold CALIBER certification, and the products we use carry CCMC certification numbers from leading manufacturers, so you know the work we complete will meet Canadian standards.

4,000+ Projects a Year

With over 14 trucks on the road every day and a team of 40+ specialists, we have the capacity to take on projects of any size and deliver on schedule.

Access to Rebates

We keep up-to-date with all available rebate opportunities so that your eligible projects can qualify for money back through programs like Rénoclimat or LogisVert. We'll help you understand what does or doesn't apply to your project before work begins.

Client Testimonials

I would like to congratulate you on prioritizing me for an emergency repair on my crooked roof. You were very understanding of my situation. My contractor is Mr. Patrice Beaupré.

This morning, I would also like to add my comments to Mr. Kevin Bergeron and Ian Beauchamps for their punctuality. Both were very friendly despite the slippery weather, and they remained calm. I am very satisfied with their work, their speed, and their professionalism. Thank you from the bottom of my heart. Another satisfied customer. See you soon!

Elise Lambert

5.0

I hired Isolation Majeau et Frère to blow cellulose in our attic, and they delivered at every step -from sales through planning to installation. Ian and Gaétan showed up on time and followed the plan without fuss. True pros: meticulous, efficient, and they achieved R-60 evenly across the whole attic. Couldn’t be happier - thanks for a job well done!

Charles Grisé

5.0

I obtained several quotes, and Isolation Majeau was by far the most competent and affordable company I dealt with. Normand and Geoffroy came to my home. They accommodated my specific requests and did an extremely professional job. I highly recommend them. A+++ service

Pierre Fortin Carrier

5.0

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