Installation of a Sharp wall-mounted heat pump in Saint-Laurent
AirGreen installed a Sharp wall-mounted heat pump in Saint-Laurent, ensuring comfort, energy savings and professional HVAC service in Greater Montreal.
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The job on one screen

The article, chapter by chapter
Sustainable comfort and optimal energy efficiency for a Montreal family
In a residential neighborhood of Saint-Laurent , we recently installed aSharp wall-mounted heat pump , a modern solution that combines heating and air conditioning in a single, compact and efficient unit. This intervention perfectly illustrates how a residential HVAC project can transform the comfort of a home while reducing energy costs.
Choosing the Sharp wall-mounted heat pump
The Sharp wall-mounted heat pump is a popular choice for its stable performance and adaptability to Quebec winters . With an operating range down to -25°C, it efficiently heats main rooms without relying entirely on a backup heating system. With a typical capacity of 12,000 BTUs , it's ideal for medium-sized spaces, such as living rooms or master bedrooms.
Client background and objectives
The owners, living in a condominium in Saint-Laurent, wanted:
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A discreet and silent device.
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A solution capable of partially replacing their traditional electric heating.
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Quick installation, without heavy structural modifications.
The wall-mounted heat pump was therefore the ideal choice, providing a balance between performance, aesthetics and simplicity.
Technical details of the installation
Our certified technicians carried out an installation that met the strictest standards in the HVAC industry:
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Fixing the indoor unit : mounted high on a load-bearing wall, providing optimal air diffusion.
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Discreet wall drilling for the passage of refrigerant and electrical pipes.
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Pipe routing : concealed using white capping matching the interior walls for aesthetic integration.
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Condensate drainage by gravity, thus avoiding the addition of a pump.
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Outdoor unit installed on a sturdy wall bracket, minimizing vibrations and protecting the unit from snow accumulation.
This configuration ensures efficient operation, easy maintenance and increased durability of the equipment.
Challenges encountered and solutions applied
One of the main challenges of this project was the proximity to the ceiling. To ensure optimal airflow, minimal clearance was required while optimizing wall space. Our installers precisely adjusted the location, ensuring a safe, compliant, and aesthetically pleasing installation.
Concrete benefits for the customer
Since commissioning, owners benefit from:
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Immediate comfort : gentle heating in winter, coolness in summer.
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Energy savings : significant reduction in electricity consumption thanks to the high efficiency of the Sharp heat pump.
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Quiet operation , ideal for a condo environment.
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A simple to use system , with intuitive remote control and time programming.
Grant Eligibility
The installed Sharp heat pump meets the energy efficiency criteria required by several provincial and federal programs, particularly for homes in Greater Montreal. Our experts always assist clients in preparing grant applications (LogisVert, Chauffez vert, etc.) to maximize the return on investment.
AirGreen expertise in Saint-Laurent
At AirGreen, we showcase our expertise and in-depth knowledge of HVAC solutions adapted to Quebec's climate realities. Each project, like this installation in Saint-Laurent, is an opportunity to demonstrate:
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Our ability to find personalized solutions.
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Our attention to detail in every step of the installation.
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Our commitment to providing comfort, efficiency and peace of mind.
Why choose AirGreen for your wall-mounted heat pump in Montreal and surrounding areas?
By choosing AirGreen, you benefit from:
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Recognized local expertise in installing wall-mounted heat pumps from Sharp, Fujitsu, Gree, Midea and more.
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A complete turnkey service , from device selection to commissioning.
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Administrative support for available grants.
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Guaranteed peace of mind , with our certified technicians and responsive after-sales service.
Conclusion
This Sharp wall-mounted heat pump installation in Saint-Laurent perfectly illustrates how a well-thought-out and well-executed project can transform occupants' daily comfort while reducing their energy bills. Thanks to AirGreen's expertise, homeowners now benefit from a high-performance, discreet, and sustainable system.
The job tools
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.
How the job unfolds
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 we check on a job like this one
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.
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.
Good habits, once the unit is in place
Six simple habits that keep the unit going. Your list stays on this device.
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.
The right pages, at the right time
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).
