Installation of a Gree wall-mounted heat pump on a balcony in Chomedey, Laval
Installation of a Gree R-32 wall-mounted heat pump on a balcony in Chomedey, Laval — an AirGreen project combining comfort, efficiency and HVAC expertise.
Take a tour of the installation
Each number is a point we check on site. Switch between summer and winter to watch air and heat move.
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 compact and neat installation to maximize comfort in limited space
At AirGreen , we understand that every wall-mounted heat pump installation project presents its own unique challenges. This is especially true in condominiums, where space and structural constraints require specialized expertise. Recently, our team completed the installation of a Gree wall-mounted heat pump in a plex in Chomedey, Laval , once again demonstrating our ability to offer efficient, aesthetically pleasing, and durable solutions, even in tight spaces.
Technical details of the installation
The installed model comes from the Gree R-32 range , renowned for its reliability , high energy efficiency and quiet operation. The outdoor unit, here fixed on a reinforced wall bracket , rests securely on the beige brick rear facade of the building.
Our technicians carefully selected this positioning to optimize air circulation around the compressor, while respecting safety and accessibility requirements for future maintenance.
The electrical wiring, protected by a covered wiring in a color matching the facade , elegantly descends to a cut-off box placed in the immediate vicinity of the patio door, ensuring full compliance with Quebec electrical standards (RBQ) .
This type of wall installation, often preferred for narrow balconies or spaces in co-ownership , frees up the floor , prevents snow accumulation in winter, and reduces the noise perceived inside .
A typical Laval residential environment
The project was carried out in a residential building in Chomedey , an area where buildings with brick facades and aluminum balconies are common. These configurations require precise anchors and careful planning to avoid any structural vibration.
Our teams reinforced the metal support structure using galvanized brackets and anti-vibration dampers, ensuring maximum stability while minimizing sound transfer.
A high-performance system for four-season comfort
The Gree heat pump installed here offers a power of 12,000 BTUs , enough to heat and cool an entire home of approximately 800 to 1,000 sq. ft.
Thanks to its high-efficiency inverter compressor and R-32 refrigerant, this system achieves a Seasonal Energy Efficiency Ratio (SEER) of over 21 , while maintaining stable performance down to −25°C — ideal for Quebec winters.
This model is also eligible for certain subsidies under energy efficiency programs in Quebec, offering our customers the opportunity to reduce the initial purchase cost while achieving lasting savings on the electricity bill .
Key project milestones
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Space analysis : inspection of the load-bearing brick wall and assessment of required clearances.
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Electrical preparation : installation of a dedicated circuit breaker and an external disconnect box.
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Mounting on reinforced brackets : fixing to the wall using expansion anchor screws.
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Installation of the cover : clean finish, harmonized with the color of the covering.
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Commissioning test : checking pressures, air flow and temperature.
Each step has been validated by an RBQ and EPA certified technician , guaranteeing full compliance of the system with environmental and safety standards.
Why choose AirGreen for your installation in Laval?
Our commitment does not stop at installation: at AirGreen, we offer complete support , from the choice of model to regular maintenance .
Our experts ensure that each wall-mounted heat pump installed integrates perfectly into the existing environment, while offering the best possible energy efficiency .
Thanks to our experience in areas such as Chomedey, Vimont, Fabreville and Laval-des-Rapides , we know how to adapt each project to local realities: building orientation, insulation, neighborhood, aesthetic and structural constraints.
Final result: comfort, performance and aesthetics
The result of this installation in Chomedey speaks for itself:
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A harmonious visual integration , thanks to discreet capping and intelligent positioning.
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Optimal performance in winter and summer.
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Minimal outside noise , imperceptible to neighbors.
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Perfect safety and accessibility for future maintenance.
This Gree R-32 wall-mounted heat pump now offers its occupants constant comfort , while contributing to the reduction of greenhouse gas emissions thanks to its superior energy efficiency.
A trusted team for your HVAC projects
Each installation signed AirGreen is the result of know-how accumulated over years in the field of residential and commercial HVAC .
Our teams serve all of Greater Montreal , including Laval, Longueuil, Montreal, the North Shore and the South Shore , with an approach focused on quality, safety and customer satisfaction .
For a similar project in Laval or elsewhere in the metropolitan area, contact AirGreen today for a free quote and personalized advice tailored to your property.
The big day, step by step
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.
What would it look like 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.
Four mistakes we do not make
Flip each card to see what we do instead.
Your own project, step by step
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.
Is your home ready?
Check what applies at your place. A "no" is not a refusal: it is what we sort out during the estimate.
Four statements: true or false?
It all comes down to details you have just seen.
1. In heating mode, the outdoor unit can produce water.
During defrost cycles. That water must drain away without forming ice.
2. You pick the capacity with a simple square-footage rule.
Windows, insulation, orientation and how the room is used all count. Capacity is chosen on site.
3. A multi-zone connects several indoor heads to a single condenser.
One head per room, all on the same condenser. Each room keeps its own temperature.
4. The disconnect can sit behind the patio furniture.
It must stay accessible: it is what shuts the unit off for service.
0 / 4 right answers
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?
No question matches. Write to us: we answer.
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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).