The 5 Best Attic Insulation Services in Montreal That Won’t Blow the Bank
Have you ever had torturous rain seep through your roof? Or a long winter season where even your gorgeous golden retriever is shivering through his coat?
I’ve heard so many horror stories of friends going the cheap route on attic insulations, only to find out that the results are subpar. It’s true that you get what you pay for, but it’s also not impossible to find insulation services that won’t run you dry.
That’s why we compiled the top attic insulation companies we trust. Join us and find the attic insulation company that will give you the best service!
How much is attic insulation in Montreal? Attic insulation in Montreal costs $1,500 on average, but prices can range from $800 to $3,000. The final cost depends on factors like the size of the attic, the type of insulation used, and the complexity of the installation. |
How We Chose
1. EcoRenov

Location: 2023 Mnt Monette, Laval, QC H7M 4S5, Canada
Contact: +1 438-800-2046
Opening Hours: Monday – Thursday: 8:00 AM – 5:00 PM | Friday: 8:00 AM – 4:30 PM
One thing we liked about EcoRenov is their relatively lower prices but still maintaining high-quality materials. For one, we found that the caulk they use for insulation can withstand temperatures of -20°C.
Additionally, their relationship with their supplier allows them to receive quality products at a much lower price. This makes the overall service cheaper for their clients.
The whole process was also easy, starting off with a detailed quote that you can get within a few hours. Once a client commits, they immediately assess the attic situation and recommend which type of insulations to go for, like cellulose, blown wool, and urethane.
We also like how efficient they are. They can finish a job within 2 weeks (still depends on how big your attic is, but this is standard time). On top of that, they also take the time to do post-installation inspections to check for any issues.
The only downside is that they have some scheduling issues, such as failing to meet the clients at the agreed time of the installation. But to be fair, the issues aren’t major and recurring, so we still have a bit of faith in their promptness.
Professional and communicates well
“EcoRenov did removal of old vermiculite insulation in the attic, decontamination, and re-insulation. They also installed new soffits. Their work was very well done. Very professional. Communication with the office was excellent.”
Jacques Le Normand | Google Reviews
Great insulation work and insulation
“Very happy with the insulation work of our attic. They were neat and I know this will be beneficial for our heat savings and keeping the house cooler in summer. Thank you and I would recommend you highly.”
Diane Wood | Google Reviews
2. Isolation Smart Seal Inc.

Location: 11752 54e Ave, Montreal QC H1E 2J3, Canadá
Contact: +1 514-717-7325
Opening Hours: Monday – Thursday: 8:00 AM – 6:00 PM | Friday: 8:00 AM – 2:00 PM
What stood out about Smart Seal is their more than 15 years of experience in the business. Even more, their focus on eco-friendly services won us over.
One of their eco-friendly insulation options is their Sprayed Polyurethane Foam made from recycled plastics and vegetable oil. It’s the perfect insulation for non-mainstream-looking attics due to its flexibility and easy application.
Apart from this, we also appreciate the range of insulation materials they have. They also have cellulose insulation which is perfect for northern weather and can be fitted into various cavities.
Clients also spoke about their meticulous approach. They don’t finish a job until their clients are 100% satisfied. They even do a comprehensive final check before having the client look into the results.
As for communication, they reply to queries within 24 hours. The promptness is reflected in their work too as the majority of their projects often get done earlier than their estimated timeline.
Sadly, some clients did experience some unprofessionalism when we talked to one of their staff, which affected our initial impression of them. However, they expressed their apologies and ensured that it never happens again.
Fast and great job
“Isolation Smart Seal. did a very good job, in addition it took them very fast so we’re still on our date to move into the new warehouse,”
Yisroel Teitelbaum | Google Reviews
Friendly and very professional team
“Used them, and they are extremely professional! Had called other companies to come and they would never show, these guys are punctual and very efficient on what they do! Also they have an extremely friendly and very informative team.”
Nissim Quezada | Google Reviews
3. Isolation Equinoxe Plus

Location: 9900 Ch. de Chambly, Saint-Hubert, QC J3Z 0K5, Canada
Contact: +1 450-678-9999
Opening Hours: Monday – Saturday: 8:00 AM – 6:00 PM
While looking for a place that can offer a variety of insulations, we came across Isolation Equinoxe Plus. They offered 3 different types of insulations – cellulose, urethane, and blown bulk – to fit different types of attic.
They hold a certificate from the CNESST (Commission des normes, de l’équité, de la santé et de la sécurité du travail), which shows that they ensure a safe and healthy work environment.
We really liked their eco-friendly insulation solution. They use cellulose made from recycled newspapers which offers thermal comfort all year round.
The great thing about them is that they don’t only service homes, they do commercial spaces too. They can do condo units, multi-unit dwellings, and professional and commercial properties, guaranteeing that they can do the work no matter the size.
But some of their previous clients warned us about some dismissive staff refusing to answer their inquiry.
Great service and competitive price
“Daniel and Israel insulated my basement and many sections of attick. I was very pleased with both service and competitive price. I have recommended to several people.”
Paul Savoie | Google Reviews
Professional, courteous and hard working
“Daniel and his team recently made modifications and put new insulation in our attic. The job was completed as quoted at a very reasonable price. They came well prepared, protected our floors and work area and cleaned up afterwards. They were professional, courteous and hard working. We would recommend them without hesitation . Our thanks to the whole team.”
Annemarie Voorn | Google Reviews
4. Isolation ETOC

Location: 21 Bd Saint-Joseph A, Montréal, QC H8S 2K9, Canada
Contact: +1 514-470-3862
Opening Hours: Open 24 hours
What impressed us about Isolation ETOC is their more than 20 years of experience in the business. This alone made us feel secure about the quality of their services.
On top of this, they’re also trusted by well-known companies such as Soprema and Huntsman.
Many of their clients really loved their sprayed polyurethane insulation. Its high thermal capacity, lightweight nature, and ability to provide effective protection against heat, cold, and sound, make it a popular choice for many.
While we usually favor a wide range of options, we also liked how straightforward ETOC was when presenting the best insulation. For instance, many clients said they help them narrow down to cheaper solutions like cellulose insulation which they specialize in.
However, we did notice that a few of their previous clients were unhappy with the finished outcome – mostly missed areas during installation. We’re happy to note though that the company is currently in the process of amending the issues.
Great and efficient service
“Great service! I needed to insulate my basement and they came quickly. Thank you so much!!”
Salomé Allard-Lawrence | Google Reviews
Very well done and fast work
“Very well done and fast work. I called them ETOC and the job was done! Excellent work by the whole team. I recommend!!”
Frederic Pelletier | Google Reviews
5. Systèmes Éconergie

Location: 1622 Blvd Saint-Elzéar O, Laval, QC H7L 3N2, Canada
Contact: +1 514-612-1351
Opening Hours: Monday – Friday: 8:00 AM – 5:00 PM
Systèmes Éconergie has built an excellent reputation among homeowners in Montreal. Many of their clients said they’re easy to talk to, clearly explaining each type of insulation that is perfect for the attic. And if there were some lapses in quality, they made sure to come back and fix it.
Besides this, we loved their 120-month payment period. It’s a great payment plan for those who may be tight on cash at the moment.
We were also impressed by how good they are at identifying problems. For instance, one of their clients said the team managed to see unstable heating immediately. Another said they found an existing electrical problem that others missed during the inspection.
As for the range of options, they provide insulations like blown cellulose fiber insulation, rigid foam insulation, radiant barriers, and more.
Additional services they offer are preventive measures for common problems you might face with insulation, such as ice dams, mold, and attic air leaks.
Friendly and professional
“Awesome work ! My attic is well insulated. Colin is very friendly and professional”
Sales Support Creations BIMO | Google Reviews
Great and pleasing work
“Systèmes Éconergie did my attic insulation, they do great work!! Very pleased with the entire process.”
Elyse | Google Reviews