Installation of a Gree wall-mounted heat pump in Laval
AirGreen installed a Gree wall-mounted heat pump in Laval in the middle of winter. A reliable and durable HVAC system, ensuring efficient heating and cooling. Local expertise in Montreal, Laval, Longueuil, the North Shore, and the South Shore.
In summer, the outdoor unit rejects the house's heat outside.
Generic illustration of this type of installation, not a survey of this job site. Tap a number.
Mounted level on a wall plate, high enough for the air to reach the whole room, with enough space around it to slide the filters out easily.
The refrigerant lines, the communication cable and the drain go through the wall in a single opening, sealed against water, cold air and insects.
Two insulated copper pipes connect the two units. Outside, a line cover can protect them from sun, knocks and weather.
A shut-off switch near the outdoor unit isolates it safely for service. It must stay accessible at all times.
The compressor and the fan. In heating mode it captures heat from the outdoor air, even in winter, and moves it inside.
On the ground or on the wall, it keeps the unit above accumulated snow. The unit stays clear and defrost water can drain away.
The fan needs to blow freely. Storage, a fence or a wall too close, and efficiency drops while noise goes up.
A successful winter installation despite the weather conditions
At AirGreen , we know that a wall-mounted heat pump installation must be carried out with precision, even in the depths of a Quebec winter. This example in Laval perfectly illustrates our expertise: the Gree outdoor unit was installed by our team while snow still covered a large portion of the backyard. Thanks to rigorous preparation and techniques adapted to cold conditions, we were able to guarantee optimal operation from the start-up.
The advantages of a Gree wall-mounted heat pump in Quebec
Gree wall-mounted heat pumps are designed to meet the needs of Greater Montreal homes. They are distinguished by:
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High energy efficiency , with SEER and HSPF ratings that meet Energy Star standards.
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Reliable performance down to -25°C , ensuring stable heating even in very cold weather.
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Quiet operation that promotes daily comfort.
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Compatibility with provincial and federal subsidies , helping to reduce the initial investment cost.
Technical details of the installation in Laval
In this project, several elements deserve to be highlighted:
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Solid wall mounting on a brick facade, with waterproof sealing of the holes.
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Sufficient ground clearance to avoid obstruction by accumulated snow and ensure good air circulation.
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Passage of refrigerant lines with complete insulation and protective capping.
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Dedicated power supply , complying with current safety standards.
The outdoor unit has been strategically placed away from direct snow removal areas, reducing the risk of ice and water infiltration.
Winter challenges and solutions implemented
Installing a heat pump in winter presents specific challenges:
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Snow management on the ground : clear the area beforehand to ensure safe and clean work.
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Drilling through the masonry : carried out with a seal suitable for cold weather to ensure watertightness.
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Operational tests : despite the low temperature, a complete calibration validated the performance in heating mode.
These precautions ensure maximum durability of the equipment and immediate comfort for the customer.
Benefits for the customer
Thanks to this installation, the owner now benefits from:
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Efficient and economical heating in winter, reducing dependence on electric baseboards.
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High-performance air conditioning for summer, ideal for Laval's hot and humid days.
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A guarantee of reliability , both on the Gree equipment and on the AirGreen installation.
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Easy access to grants , maximizing return on investment.
AirGreen: expertise adapted to local realities
Each neighborhood in Greater Montreal has its own architectural and climatic characteristics. Whether in Montreal, Laval, Longueuil, on the North Shore or the South Shore , our team adjusts its methods to ensure optimal HVAC installation . This project in Laval is proof: despite the snow and cold, we delivered a perfectly functional and durable system, for four-season comfort.
How it goes, from the first call to the end
The main steps of this kind of job at AirGreen. Every house has its quirks: the estimate brings them out.
We look at the room, the outside wall, the line route and where the outdoor unit will go. That is where the capacity gets chosen.
Model, capacity and price, in writing. We also check whether the model qualifies for assistance programs.
Floors and furniture protected, wall plate position marked level, wall opening located.
A single opening, with the slope the drain needs to flow outside.
Set on a stand raised above the snow, with the clearances the manufacturer requires.
Connected, insulated and protected. The opening is then sealed against water, cold air and insects.
A dedicated circuit and an accessible disconnect near the outdoor unit.
Leak test, vacuum, then start-up and a check of heating and cooling.
Remote, modes, filters: we show you the essentials before we leave.
- The on-site estimateWe look at the room, the outside wall, the line route and where the outdoor unit will go. That is where the capacity gets chosen.
- The quoteModel, capacity and price, in writing. We also check whether the model qualifies for assistance programs.
- Getting readyFloors and furniture protected, wall plate position marked level, wall opening located.
- The wall openingA single opening, with the slope the drain needs to flow outside.
- The outdoor unitSet on a stand raised above the snow, with the clearances the manufacturer requires.
- Lines, cable and drainConnected, insulated and protected. The opening is then sealed against water, cold air and insects.
- The electrical workA dedicated circuit and an accessible disconnect near the outdoor unit.
- Tests and start-upLeak test, vacuum, then start-up and a check of heating and cooling.
- The walkthroughRemote, modes, filters: we show you the essentials before we leave.
And at your place?
Two quick checks with real numbers: what heat costs, and what your current heaters add up to in BTU/h.
Conversion: 1 W = 3.412 BTU/h. An indication, not a load calculation: baseboards and furnaces are often stronger than the real need, and they can stay as backup. AirGreen confirms the capacity on site.
What to do, season by season
Three habits per season for this unit. They take a few minutes and prevent many calls.
- Clean the indoor unit's filters.
- Clear leaves and debris left on the outdoor unit by winter.
- Test cooling before the first hot days.
- Clean the filters more often when the unit runs a lot.
- Keep plants away from the outdoor unit.
- Check that no water drips from the indoor unit.
- Rake the leaves around the outdoor unit.
- Test heating before the first cold days.
- Book periodic maintenance before winter.
- Keep snow away from the stand and the front of the unit.
- Let the unit defrost: it is normal.
- Never hit the ice on the fins; call us if the unit stays iced up.
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What people ask us about this kind of work
Does a wall-mounted heat pump heat in winter?
Wall-mounted or multi-zone: how do I choose?
Where does the outdoor unit go?
Are there grants?
Do I need a permit?
How cold can it heat?
How much can I save?
How is the LogisVert assistance calculated?
Is it noisy?
The outdoor unit is covered in ice: is that normal?
Does AirGreen hold the required licences?
Is the estimate free?
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Text and photo: a real AirGreen Climatisation & Chauffage job. The diagrams are generic illustrations of the type of installation, not a survey of this job site. Sources of the added figures: airgreen.ca product pages (NEEP / AHRI performance), Hydro-Québec (Heat pumps page, LogisVert, read on 13 October 2026), Régie de l’énergie (rate D as of 1 April 2026).