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Celsiuslab
- Stars
- Honest
- Wall
“I most appreciate that they were able to squeeze in cleaning the dryer vent during the same visit although it wasn't planned and the vent was difficult to access.”
Best HVAC Contractors in Laval, QC
24 companies listed · all 24 in Laval · 2 open 24/7 · 6 open weekends · 19 rated 4.5+
Data verified October 17, 2026
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Services Ecolux Inc.
- Thibaut Courtois
- Efficient
- Heat Pump
“The uninstallation of the old non-functional heat pump, the cable change, the connection to the electrical panel, and the installation of the new heat pump were done with remarkable efficiency.”
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Climatisation & Chauffage
- Trust
- Choice
- Heat Pump
“They arrived on time, were attentive, very professional, and above all, we took the time to explain the adjustments and advice to ensure optimal operation of my new equipment.”
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Toitures LV
- Christmas Morning
- Risk
- Labor
“The deadlines were met, the site conditions were impeccable on a difficult to access and sloping site, excellent quality of work, to be recommended without hesitation!”
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Duraclim
- Sympathetic
- Cleanliness
- Wall
“Great service and communication prior to visit.”
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Couvreur Denis Courville Inc
- Surprise
- Communication
- Team
“I got on the roof myself to check the work and although I'm no expert, the installation of the membrane in terms of cuts, seams, and corners seemed to be of high quality as well as the new vents, drains, flashing and skylight.”
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 70 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 6,849 reviews; 22 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 (93%), quality (69%) and value (61%). The topics that come up most in reviews of the companies on this page are "attention to detail", "communication" and "estimates". 2 are open around the clock; 6 are open on Saturdays and 3 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 2005. 1 offers financing; 2 give free estimates 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 19 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 6 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.
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Climatech
- Call
- Professionalism
- Sales
“There are lots of considerations when installing these units (access to exterior compressors, positioning of split units to maximize air flow, strength/power of each unit, etc.”
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Aéra Ventilation Inc
- Dryer
- Attention
- Price
“They located the unit very well in the living room so that it flows towards the bedrooms, they did a beautiful job on the exterior too, everything is well placed, they have attention to detail”
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Chauffage Mongeon
- Employe
- Hats
- Heat Pump
“Very good service, after a service call, thank you Sara, always so kind, the technician Laurent came a day before the fixed date, very professional, attentive and answered all our questions precisely.”
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Novalto
- Fuel Oil
- Technicians
- Labor
“The job was done well and when unforeseen events occurred during the installation (out of their control), they took the time to explain the different options and recommend the most effective approach.”
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Climatisation AP
- Wall
- Thibaut Courtois
- Heat Pump
“Last week we had a small problem with our unit, the AP air conditioning team came to the house and the problem was resolved efficiently and without fuss.”
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Systèmes Sous-Sol Québec
- Merger
- Technician
- Questions
“On the day of the installation, Fiston arrived on time and did a fine job doing the installation of our inside French drain and membrane on our basement wall, and explained the system afterwards.”
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Nouvel-Air Inc
- Merger
- Satisfaction
- Labor
“I made three quotes and Nouvelair were the only ones to guide me for an Energystar heat pump which is eligible for the RénoClimat program and the green tax credit.”
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Climabionet
- Price
- Labor
- Thursday
“He even gave us a little lesson on how exactly it works, nothing to say, everything is simply perfect, we will continue to have our thermo maintained by Climabionet without any hesitation!”
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JR Énergie Inc.
- Oil
- Subsidy
- Price
“Josée and Richard installed a wall-mounted heat pump for us quickly and cleanly, according to our requirements and their recommendations we even had training on its operation: real professional work.”
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Stéfanair
- Purchase
- Competitiveness
- Labor
“The installation work was well done leaving the place clean...”
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Écoclim
- Polis
- Rapidity
- Installation
“I had to cancel the purchase of an air exchanger after a visit from the seller followed by a visit from a technician who both suggested the same installation.”
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Rénoassistance
- Stress
- Greenhouse
- Roof
“I will not hesitate to reconnect reno-assistance for any other future renovation project, a special thank you to Isabelle Audy for her professionalism, courtesy and expertise throughout the process.”
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Lysair
- June
- Mitsubishi
- Sales
“We had a problem with our system and it was handled the next day thank's to Luc and his team we really appreciate your professional and courteous manner everything was handled if I could give 20 stars I would”
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Isolation Multi-Services
- Estimate
- Price
“I loved my experience with this company very good services and big thanks to Vincent Brouillette and Hugo and sorry I lost the name of your colleague but I recommend 100% insulation of my attic is on the mark”
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Solution Air Ventilation
- Team
- Labor
- Respect
“It is very refreshing to see a company that respects the customer, carries out appropriate follow-ups, and honors its service offering in all respects (qualities that unfortunately we cannot always take for granted when it comes to companies in the f...”
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Bertrand Système de Chauffage Inc
- Sympathetic
- Price
- Communication
“I would like to express my complete satisfaction with Bertrand Système de Chauffage Inc for their exceptional service regarding the connection of my natural gas generator.”
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Toukan Inc
- Problem
- Employe
- Work
“We rarely highlight those moments when we are more than satisfied so I wanted to write it down (and I am a real customer not a robot or an employee hired to write good comments on social networks).”
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Viragevert Portes et Fenêtres
- After Sales Service
- Date
- Team
“Although a $125 credit was applied to the invoice after I contacted them, I find this relatively ordinary on the part of the seller who was accompanied by his intern, and who told him to put smaller measurements so that the bid was lower for us to ch...”
HVAC, Heating & AC Services in Laval, QC Cost Estimates
Minimum cost
$2494
Maximum cost
$14944
National Average
$7780
Avg Per Hour Rates
$207
$5340
$10312
Average price range is based on 382 cost profiles
Why these companies made our list
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