A unique HVAC installation project above a narrow staircase
At AirGreen , we regularly work in residential contexts that require creativity and technical rigor. This project to install a Gree wall-mounted heat pump in Outremont is a perfect example: the interior head had to be installed above a staircase, a location that makes access complex but ensures excellent air diffusion throughout the space.
The particularities of the site
Installing a wall unit in a staircase poses several practical challenges:
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High working height : our technicians had to work with a ladder adjusted to the intermediate landing, requiring reinforced safety measures.
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Restricted access : With limited space, every manipulation of the interior head had to be done precisely to avoid contact with the walls and ceiling.
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Comfort management : the choice of this high wall optimizes air circulation, since the blown air naturally descends to the lower floors.
The Gree heat pump: performance and reliability
The client chose a Gree residential range wall-mounted heat pump , known for:
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Its energy efficiency (up to -25°C in heating mode).
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Its integrated filters ensure better indoor air quality.
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Its quiet operation is particularly appreciated in open spaces like this one.
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Its eligibility for energy subsidy programs in Quebec (notably LogisVert and federal incentives linked to energy efficiency).
Key steps of installation
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Location Assessment
Before installation, our experts validated the aesthetic and functional integration of the wall unit in this atypical space. The position allows for effective radiation both upwards and towards the ground floor. -
Secure fixing of the wall plate
The wall structure was checked to ensure solid anchoring despite the proximity of the windows and the space constraint above the staircase. -
Drilling and passing refrigerant pipes
The insulated pipes were carefully routed to the exterior, with discreet capping to match the aesthetics of the building. -
Condensate drainage management
Gravity drainage has been provided, which avoids the installation of an additional pump and reduces maintenance risks. -
Commissioning and calibration
Once the unit was secured and connected, we carried out a full commissioning test, checking the refrigerant gas pressure, tightness and correct ventilation balance.
Final result: comfort and aesthetics harmonized
The result is an installation that combines energy performance and elegant integration into a modern residential environment. The Gree wall-mounted heat pump now ensures the customer optimal comfort, both in heating in winter and in air conditioning in summer , with diffusion perfectly adapted to the interior architecture.
Why choose AirGreen for your HVAC projects?
At AirGreen, each installation is designed based on the client's needs and the specific circumstances of their home. Our technicians are trained to work in challenging environments (staircases, mezzanines, high ceilings) while respecting safety and performance standards. We serve the entire Greater Montreal area—including Montreal, Laval, Longueuil, the North Shore, and the South Shore —and support our clients every step of the way: from equipment selection and installation to HVAC maintenance and grant applications.