Celsiuslab
“From now on, I will get it cleaned every 2 years and for sure I will contact them again.”
Best HVAC Contractors in Laval, QC
24 companies listed · all 24 in Laval · 3 open 24/7 · 8 open weekends · 19 rated 4.5+
Data verified October 21, 2026
Services Ecolux Inc.
“All respect for the installation service and the work done…professional and pleasant!!!”
Climatisation & Chauffage
“Thanks to David and Stéphanie as well as Marco and Marc-André for their professionalism and kindness, the work is very clean and 100% faithful to what was agreed”
Duraclim
“We did business with Duraclim for the maintenance of our wall-mounted air conditioning system and the service was impeccable.”
Climatech
“He is passionate about what he does and will not leave your premises until he checks that everything is in working order.”
Novalto
“The installers were very knowledgeable, running the pipes ingeniously to minimize their appearance through our rooms.”
The 24 companies listed for Laval, QC handle furnaces and heat pumps in winter and the cooling side in summer. Profiles repeat what each firm publishes about hours, licensing and brands, with ratings and review quotes gathered from public reviews.
Area overview: Laval, QC
All 24 companies we list here are in Laval itself. We have 53 companies in Laval on file; this page shows the highest-rated 24. The companies on this page are rated from 4.3 to 5.0 across 6,094 reviews; 18 have 50 or more reviews and 19 are rated 4.5 or higher. When customers rate these companies on specific qualities, they most often praise professionalism (94%), quality (69%) and punctuality (61%). The topics that come up most in reviews of the companies on this page are "price", "cleanliness" and "efficient". 3 are open around the clock; 8 are open on Saturdays and 5 on Sundays. 12 show a licence on their websites. Domain records put 9 websites of the companies on this page at ten or more years old; the oldest dates from 2004. 4 offer emergency call-outs; 1 offers financing or payment plans; 2 give free estimates; 1 is family- or locally-owned and 4 list coupons or special offers. We have a website on file for all 24 of the companies on this page; 22 publish a contact page and 21 list a public email. We count these figures across the companies on this page; hours and prices change, so confirm the details with the company before you book.
Do any heating firms listed for Laval work on Saturdays or Sundays?
Saturday or Sunday hours show up for 8 of the 24 companies on this page. Saturday is mostly repair work; installations land on weekdays, because supply houses and municipal inspectors keep weekday hours.
Aéra Ventilation Inc
“James took great care during the installation of our new air exchanger to keep the premises spotless.”
Climatisation AP
“Family business whose staff is competent, shows commitment and cares about a job well done.”
Chauffage Mongeon
“They explained everything to us well, answered our questions, listened to our suggestions and their work was excellent.”
Nouvel-Air Inc
“Francis and Sylvain did exemplary work, an experienced team, working in good humor and with a focus on customer satisfaction.”
Climabionet
“Excellent cleaning service and advice on how to properly maintain our device!”
Stéfanair
“The representative Serge, very kind and professional, as well as the installation team.”
JR Énergie Inc.
“I am extremely satisfied with the fast service and impeccable follow-up offered by JR Énergie.”
Écoclim
“We are very satisfied with the work carried out and the explanations provided by Écoclim employees.”
Rénoassistance
“Isabelle Berube for her help and kindness throughout the process”
Lysair
“We highly recommend Lysair not only for the exceptional quality of their services and products, but also for their integrity and commitment to providing solutions that truly serve the interests of their customers.”
Solution Air Ventilation
“Very serious and very competent company.”
Bertrand Système de Chauffage Inc
“Very satisfied with the service offered, I recommend this company to all of you, excellent communication and impeccable service.”
Toukan Inc
“We were very satisfied with the work accomplished by the technicians and their courtesy, he works cleanly and they are helpful.”
Viragevert Portes et Fenêtres
“He promised me a delivery date and they delivered the goods on the scheduled date”
EPM Mecanic
“They have solved a issue with our system that no one else to figure out.”
Constructions Rénovations 4 Saisons Inc.
“Thank you for the quality of the work carried out, I will contact you again without hesitation.”
Réparation AC
“Precise information before the visit and the repair cost me the expected budget (8-10%) of a new unit.”
Airx
“He completed the work within the timelines that he promised and gave us a great price!”
Why these companies made our list
What customers say about companies in Laval
- “Exceptional service during the installation of a new heat pump, a special note to the representative Kevin who orchestrated everything to make everything go smoothly.” — customer of Lysair
- “Eli showed up the day after to service my air conditioner, he carefully explained the problem and did the required corrections promptly.” — customer of Climatech
- “Experienced and courteous representatives and technicians. Gave us good advice on the most optimal location for our heat pump.” — customer of Écoclim
- “Very good service, the people who came to my house were really professional and they took the time to explain to me how the device worked and the work they had to do to install the heat pump.” — customer of Climatisation AP
- “Good installation, I am really satisfied with the Bertrand team, I recommend this company to anyone who needs an air conditioning or heat pump system.” — customer of Bertrand Système de Chauffage Inc
Excerpts from public reviews of the companies listed on this page.
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