Rated on 2 platforms — Google 4.8, Facebook 5.0; ratings agree

Les Installations en Chauffage SM inc is a plumbing company serving Longueuil, QC, rated 4.8★ across 149 reviews. Reviewers repeatedly call out its professionalism, punctuality, tidiness. It carries an N49 Trust Score of 58.6/100 across our 10-factor review. Altogether it carries ~145 reviews across 2 platforms.
4.8★ from 144 Google reviews
Rated on 2 platforms — Google 4.8, Facebook 5.0; ratings agree
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Not in the Google Maps local top results
~5.3 years on Google Maps (from total-reviews ÷ monthly rate)
Checked BBB / ThreeBestRated / Consumer Choice registries — not listed
~145 reviews across 2 platforms
Mentions 4 service areas on site (e.g. brossard, longueuil, montréal, québec)
On 1 extra platforms; reachable by website, email, phone
1 platforms linked: Facebook · ~1 Facebook reviews
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By Jim Jordan on Feb 13, 2026 Verified by Google

One of three companies who visited and bid on replacing the oil system in my 19th century home. Chosen for their competitive price and the fact that the representatives spent time to answer my many questions. Additionally, the heat pump was installed in a location that was best for the aesthetics of the house and not the easiest for the installers. Both the installation team and the oil tank removal team worked efficiently and professionally, taking the time to protect the floors from the entrance all the way to the basement. The job site was left clean. A follow up email gave me the links needed to apply for the government subsidies. I would highly recommend Chauffage SM to anyone looking to replace or upgrade their heating/AC system.
By Jim Jordan on Feb 13, 2026 Verified by Google

One of three companies who visited and bid on replacing the oil system in my 19th century home. Chosen for their competitive price and the fact that the representatives spent time to answer my many questions. Additionally, the heat pump was installed in a location that was best for the aesthetics of the house and not the easiest for the installers. Both the installation team and the oil tank removal team worked efficiently and professionally, taking the time to protect the floors from the entrance all the way to the basement. The job site was left clean. A follow up email gave me the links needed to apply for the government subsidies. I would highly recommend Chauffage SM to anyone looking to replace or upgrade their heating/AC system.
By Judith Pankratz on Aug 27, 2025 Verified by Google

Great company, knowledgeable employees, excellent customer service. They respond quickly and their pricing is fair. Extremely professional installation; the guys even left the basement cleaner than when they arrived.
By Judith Pankratz on Aug 27, 2025 Verified by Google

Great company, knowledgeable employees, excellent customer service. They respond quickly and their pricing is fair. Extremely professional installation; the guys even left the basement cleaner than when they arrived.
By Stephanie Popwell on Aug 26, 2025 Verified by Google

We had an extremely dangerous experience with this company. They sent a technician that said our furnace was fine, and we later found out the system was leaking carbon monoxide into our vents. We were told by another technician that our lives were at risk, and that the system never should have been OKd. This should never have happened. We trusted this company with our safety, and the result could have been fatal. The receptionist (Sylvie) spoke to us in an unprofessional and raised tone multiple times on the phone, and told us the boss would call us back, and no one ever did.
Please use caution before hiring them.
By Stephanie Popwell on Aug 26, 2025 Verified by Google

We had an extremely dangerous experience with this company. They sent a technician that said our furnace was fine, and we later found out the system was leaking carbon monoxide into our vents. We were told by another technician that our lives were at risk, and that the system never should have been OKd. This should never have happened. We trusted this company with our safety, and the result could have been fatal. The receptionist (Sylvie) spoke to us in an unprofessional and raised tone multiple times on the phone, and told us the boss would call us back, and no one ever did.
Please use caution before hiring them.
By Antoinette Douville on Feb 8, 2024 Verified by Google

Plumbing department has been exceptional on all aspects. Will go out of their way to help. 100% recommend their plumber (Gabriel)!
By Antoinette Douville on Feb 8, 2024 Verified by Google

Plumbing department has been exceptional on all aspects. Will go out of their way to help. 100% recommend their plumber (Gabriel)!
By Candace Snook on Nov 5, 2023 Verified by Google

My husband and I were very satisfied with the replacement and work on our oil tank and relieved with the quick service done within 48 hours of our request. Very professional and helpful.
By Candace Snook on Nov 5, 2023 Verified by Google

My husband and I were very satisfied with the replacement and work on our oil tank and relieved with the quick service done within 48 hours of our request. Very professional and helpful.