A careful upgrade that combines comfort, sobriety and performance
At AirGreen , we carry out HVAC installations tailored to everyday Montreal living. This project highlights the installation of a Daikin wall-mounted heat pump in a bright apartment in Rosemont–La Petite-Patrie , where the client's primary requirement was clear: improve four-season comfort without encroaching on the minimalist aesthetic of the space.
Context and objectives of the project
The apartment, located on the top floor of a typical Rosemont apartment building, benefits from good thermal inertia but quickly became hot in the summer and too cool in the spring and fall. The owner wanted:
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a wall-mounted air conditioner which also provides efficient supplementary heating in mid-season;
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a discreet integration on a white painted masonry wall;
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quiet operation ;
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a solution eligible for grants when possible.
The solution chosen: a Daikin wall-mounted heat pump (single-zone residential range), renowned for its reliability, precise temperature control and low noise levels.
An exemplary HVAC installation, thought out in detail
Study of implantation and air circulation
Before any drilling, we validate:
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the installation height (close to the ceiling, while respecting the clearance required for air suction);
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the blowing axis towards the living room in order to cover the space evenly without creating annoying air currents;
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the proximity of an exterior wall to limit the length of refrigeration connections and facilitate the evacuation of condensate.
The chosen positioning allows the motorized shutter to direct the flow in width and depth, for rapid and homogeneous air mixing.
Drilling and fixing on masonry wall
Installing a wall head on a brick/concrete support requires suitable anchors:
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Laser tracing, leveling to the nearest millimeter;
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Use of expansion anchors and anti-corrosion screws;
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Exact-diameter through-hole for refrigeration lines, communication cable, and condensate drain—all sloped slightly outward for reliable gravity drainage .
This approach avoids vibrations, guarantees the longevity of the fixings and preserves the integrity of the wall.
Refrigeration lines, power supply and finishing
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Route shortcuts : “back-to-back” exit to the outside, minimizing the length of piping;
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Brazing and flaring to standards, with nitrogen leak testing and deep vacuum to protect the compressor;
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Communication cable sized to actual length, routed neatly;
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Discreet exterior capping , matching the color of the facade;
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Addition of an external disconnect switch for safe maintenance of the condenser;
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Check the drip-loop and the slope of the drain to avoid any backflow.
The result: understated finishes that are visually invisible and easy to maintain.
Commissioning and checks
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Pressure and temperature control using digital tools;
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Calibration of airflow and louver angles according to room configuration;
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Tests in cooling and heating modes;
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Validation of noise level and absence of vibrations.
An installation report is given to the customer, with recommendations for use and maintenance.
What the customer gains with a wall-mounted Daikin
Four-season comfort
The wall-mounted heat pump provides precise cooling in the summer and efficient heating as soon as the temperature drops. The variable-speed compressor (inverter) continuously adjusts the power: no more fluctuating temperatures, a feeling of stable comfort.
Energy efficiency and operating costs
Demand-response modulation reduces electricity consumption . Several residential Daikin models achieve high efficiencies and, when Energy Star certified , they align with the eligibility criteria for provincial and federal grant programs . At AirGreen , we support the customer in the AHRI verification , the preparation of the file and the LogisVert process or other active programs.
Silence and air quality
Daikin indoor units feature low noise levels , making them ideal for open-plan living spaces. Washable filters trap dust and particles; we train customers in simple HVAC maintenance (gentle vacuuming, rinsing, drying) to maintain flow and hygiene.
Construction site challenges and AirGreen solutions
1) Masonry support and cleanliness of the drilling
Drilling a hard wall into a finished housing requires precision and dust control . We use diamond core bits , HEPA vacuums , and localized protection . The interior is left clean, with no chips around the line crossing.
2) Clearances and ceiling lighting
The chosen wall sits beneath a clean white ceiling. We adhered to Daikin's recommended overhead and side clearances to optimize suction and avoid any interaction with lighting, which could cause turbulence or harsh shadows.
3) Aesthetics and visual continuity
The client wanted to keep things simple : the exterior pipe cover was chosen in a light shade , and the internal connections are invisible. The unit blends into the room's white palette , while remaining accessible for maintenance.
AirGreen Best Practices for a Sustainable Wall-Mounted Heat Pump
Responsible sizing
An oversized system shortens its cycles, loses efficiency and prematurely wears out its compressor. We size according to:
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of the actual air-conditioned surface ;
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solar exposure and insulation quality ;
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Montreal's specific winter heating needs .
Minimal but regular maintenance
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Filters : monthly dusting during periods of intensive use;
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Exchanger : annual gentle cleaning to maintain efficiency;
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Condensate : check the slope and flow in spring;
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Outdoor unit : clear grilles, snow guard if exposed to snowdrifts.
We offer HVAC maintenance plans tailored to residences in Montreal, Laval, Longueuil, North Shore and South Shore .
Wise use
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In summer, favor a stable setting rather than extreme back and forth movements;
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In winter, keep interior doors open to promote diffusion;
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Set realistic setpoints (e.g. 22–23°C depending on preference and humidity).
Grants and eligibility: our support
Many Daikin models meet the requirements of programs such as LogisVert and certain federal grants when the AHRI sheet and performance indices are compliant. We:
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Let’s validate the AHRI interior/exterior combination ;
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Let’s put together the evidence file (invoices, photos, serial numbers);
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We guide the customer through to the submission and follow-up of the request.
This helps reduce net installed cost while ensuring equipment selection is consistent with efficiency goals.
Why AirGreen in Rosemont–La Petite-Patrie (and throughout Greater Montreal)
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Local expertise : mastery of the specific features of Montreal plexes and condos;
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RBQ certified team and proven methods: leak testing, vacuum drawing, instrumented commissioning;
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Turnkey service : from heat pump selection to HVAC maintenance , including grant assistance ;
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Transparency : detailed quote, clear intervention schedule, follow-up after installation.
The result: discreet comfort, controlled cost, added value
This installation of a wall-mounted Daikin in Rosemont–La Petite-Patrie demonstrates that a well-planned project offers comfort and savings without visual compromise. The apartment now benefits from efficient cooling during heat waves and efficient supplemental heating when the temperature drops, with a barely perceptible noise level. For similar projects in Montreal, Laval, Longueuil, on the North Shore and the South Shore , AirGreen remains your trusted partner: advice, precision of execution and attentive monitoring.