Installation of an LG Inverter wall-mounted air conditioner in Côte-des-Neiges
AirGreen installs an LG Inverter wall-mounted air conditioner in Côte-des-Neiges, Montreal: a quiet and efficient unit, perfectly integrated into a refined interior, combining comfort, energy savings and professional installation quality.
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.
An elegant and efficient air conditioning solution adapted to Montreal's interior spaces
At AirGreen , we recently installed an LG Inverter wall-mounted air conditioner in an apartment in the Côte-des-Neiges sector of Montreal . This unit, known for its quiet operation and variable-speed compression technology, provides consistent thermal comfort, ideal for urban housing where every decibel and every degree counts.
A discreet and harmonious device in a refined interior
In this typical Montreal apartment, the living room's load-bearing wall served as both an anchor point and a technical challenge. The client wanted a discreet integration , without detracting from the aesthetics of the decor, marked by works of art and marble elements. We therefore opted for an installation at optimal height , perfectly centered under recessed lighting, ensuring even air diffusion throughout the room.
The minimalist design of the LG air conditioner blends elegantly with the surroundings: its white finish blends harmoniously with the light-colored walls, and its compact size allows for maximum efficiency without visually cluttering the space.
Technical details and custom installation
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Make and model : LG Inverter, high-efficiency residential wall-mounted series.
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Device Type : Variable Speed Wall-Mounted Air Conditioner.
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Location : Côte-des-Neiges, Montreal.
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Installation : Interior wall installation with direct drilling to the exterior, beige covered piping for an aesthetic finish.
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Drainage : Condensates evacuated by gravity thanks to a controlled slope, avoiding the use of a pump.
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Connection : Concealed refrigeration lines and wiring for a clean and professional look.
The unit was positioned to maximize airflow while avoiding any direct flow into the relaxation areas. The team ensured that the air outlet remained unobstructed and that the wall mount was securely anchored to eliminate any noise.
Energy performance and lasting comfort
The LG Inverter system stands out for its automatic modulation technology , allowing the power to be adapted according to actual needs. This results in:
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a reduction in electricity consumption ,
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constant maintenance of the ambient temperature ,
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minimal noise level , even under full load,
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and increased compressor durability .
This model is Energy Star certified , which makes it eligible for certain energy subsidies available in Quebec for high-efficiency installations.
An AirGreen installation: precision, cleanliness and satisfaction
Each AirGreen installation follows a rigorous protocol:
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Site assessment to determine optimal position.
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Electrical and structural check before drilling.
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Meticulous installation of the wall head and connections.
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Complete system test including pressure measurement, leak verification and sensor calibration.
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Cleaning of the site and demonstration of operation to the customer.
The result: an air-conditioned space with immediate comfort , remarkable energy efficiency , and an impeccable-looking installation .
Why choose LG and AirGreen for your residential comfort
LG Inverter wall-mounted air conditioners are a benchmark for their reliability and proven technology. By entrusting the installation to AirGreen, you benefit from:
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of recognized local expertise in Greater Montreal ,
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of an installation compliant with CSA and RBQ standards ,
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fast and transparent after-sales service ,
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and personalized advice to extend the life of your HVAC system.
Whether for a downtown condo or a suburban home, our teams ensure that each installation reflects our commitment: technical precision, energy efficiency and total customer satisfaction .
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).