A harsh winter, a strategic HVAC installation in Laval, and a skeptical customer turned believer: here is the true story of a real-life AirGreen experience with a wall-mounted heat pump, put to the test in the most extreme conditions. At AirGreen, we believe that real results speak louder than promises. That’s why we’re sharing this exclusive testimonial today, offering not only a look at the effectiveness of the heat pump but also at our professional, customized HVAC installation and service approach across the Laval region.
A customer concerned about Québec winters
The project began in November in Laval, when Mr. Tremblay, the owner of a single-family home built in the 1990s, started looking for a solution to lower his electricity bill and improve indoor comfort. Previously reliant on baseboard heaters, he was worried that wall-mounted heat pumps wouldn’t be effective in winter, especially during cold snaps reaching -25°C.
After a complete energy assessment of the home, we recommended a GREE EXTREME 18,000 BTU wall-mounted heat pump, well known for its outstanding performance in cold climates and eligibility for the generous Hydro-Québec LogisVert grant, which would earn him a $1,704 rebate.
Why did we recommend the Gree Extreme 18,000 BTU?
Heating performance down to -30°C
This high-efficiency heat pump was the clear choice thanks to its features:
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18,000 BTU power, perfectly suited to the home's surface area (about 1,600 sq. ft.).
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High performance coefficient (HSPF of 11.5), leading to significant energy savings.
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Capable of operating in heating mode down to -30°C, with no immediate need for backup heating.
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Advanced filtration for cleaner indoor air, essential for residents with allergies.
Beyond the technical specs, the Gree Extreme model qualifies for multiple government rebates, delivering a faster return on investment.
The HVAC installation process in Laval: precision, adaptation, and efficiency
Site preparation
We started with a full technical assessment, identifying the best location for the indoor unit to maximize distribution of warm air in winter and cool air in summer. The outdoor unit was installed on a wall bracket with an insulated base to reduce vibrations and protect the compressor from snow buildup.
Technical challenges encountered
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The exterior wall had uneven internal insulation, requiring a special route for the drain line.
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The client requested maximum discretion for any visible conduits indoors.
We overcame these challenges thanks to our experienced team, integrating the conduits into a decorative molding and using precise drilling to minimize heat loss.
Duration of the work
The entire installation was completed in less than 7 hours, with minimal disruption to the client’s comfort. The system was up and running the same day, with a full walkthrough of how everything works.
Winter hits: the real-world performance of the heat pump
Just a few weeks after installation, the first cold wave swept through Laval. Real-feel temperature: -27°C.
Mr. Tremblay reached out to us, impressed:
“I was skeptical at first. But the house stayed comfortable without even triggering the baseboard heaters. I’m blown away by how well this heat pump performs.”
Thanks to the Gree Extreme’s Inverter technology, the indoor temperature remained stable at 21°C, with an electricity consumption reduction of nearly 45% compared to the previous year, based on the client’s Hydro-Québec usage data.
Measurable results after 3 months of winter
Here’s what Mr. Tremblay reported:
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Electric bill savings: average of -43%.
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Minimal use of baseboard heaters.
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Noticeable improvement in air quality (less dust, fewer colds among the kids).
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No malfunctions or unusual system behavior, even during extreme temperatures.
Why AirGreen is the right choice for your HVAC installations in Laval
Our expertise
At AirGreen, every wall-mounted heat pump installation in Laval is treated as a custom project. Our technicians are trained to work quickly, cleanly, and with high precision, whether it's a single-family home, duplex, or condo.
Rebates and tailored advice
We assist our clients through every step of the rebate process. For Mr. Tremblay, we handled the entire LogisVert file, allowing him to quickly receive his $1,704 reimbursement.
Practical tips for choosing the right wall-mounted heat pump in Laval
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Analyze your real needs: surface area, insulation level, heating habits.
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Choose a model designed for cold climates, with certified performance at -25°C and below.
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Go for a professional installation to ensure optimal performance and extend the system’s lifespan.
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Don’t just look at the price—consider the overall value of performance, cost, and available rebates.
Conclusion: a successful installation, a satisfied customer, and a winter under control
Mr. Tremblay’s experience clearly shows the effectiveness of high-performance wall-mounted heat pumps, even under Laval’s harshest winter conditions. Thanks to a professional HVAC installation by AirGreen, he saw real savings, better thermal comfort, and improved air quality.
We’re proud to have turned his initial doubts into full satisfaction.
Located in Laval, Montreal, Longueuil, North Shore or South Shore?
Trust AirGreen for your wall-mounted heat pump installation. Contact us for a free, no-obligation consultation. Our experts will come to you quickly and help you select the best HVAC solution—energy-efficient and rebate-eligible.