What You Don’t See During a Wall-Mounted Air Conditioner Installation — Residential or Commercial
At AirGreen, we know that a wall-mounted air conditioner is much more than just a unit fixed to a wall. Behind the comfort you feel lies a meticulous process, a series of precise technical steps, and expertise built over hundreds of installations across Montréal, Laval, Longueuil, the North Shore, and the South Shore. Today, we’re taking you behind the scenes of what really goes into a wall-mounted air conditioner or mini-split heat pump installation, so you can better understand what happens between your first call and that first breath of cool air in your home.
Careful Preparation from the First Call
Everything starts with a detailed assessment of your needs. A wall-mounted unit can’t be chosen at random. We consider the size of the space, insulation, number of windows, sun exposure, and even the lifestyle of the occupants. These details directly influence the required BTU capacity and the choice of the most suitable model – Fujitsu, Gree, Tosot, Mitsubishi Electric, or Sharp, all available in our catalogue.
Step 1: Selecting the Ideal Model
We offer you options based on your budget, available grants (like the Hydro-Québec LogisVert program), and your preferences. Each brand offers its own specific advantages:
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Fujitsu KZAH R-32: known for its ultra-quiet operation and seasonal energy efficiency (SEER and HSPF).
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Gree Extreme or Sapphire: widely appreciated for their performance in low temperatures – ideal for Québec’s climate.
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Sharp ZU1: a reliable, robust, and affordable solution, perfect for single-family homes.
Step 2: In-Home Technical Visit
Once the model is chosen, our team schedules a technical visit. This is where our on-site expertise really shines. We check site accessibility, feasibility for running conduits, the optimal positioning of the indoor unit, and most importantly, the placement of the outdoor unit. The goal: to maximize the system’s efficiency, while respecting the building’s technical and aesthetic constraints.
Real Case: Installation in Longueuil
Recently, at a client’s home in Longueuil, we installed an 18,000 BTU Gree wall-mounted heat pump in a single-story house. The challenge? A brick façade with no direct access to the electrical panel. Our team designed a concealed path through the crawl space to reach the electrical box, all while staying compliant with CSA standards. The result: a flawless installation, no visible wiring, and a very satisfied customer.
Step 3: The Installation Itself
Our RBQ-certified technicians take care of every step:
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Drilling through the exterior wall to route the refrigerant lines.
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Precise mounting of the indoor unit, to avoid any vibration or noise.
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Installation of the outdoor unit, usually on a concrete base or vibration-dampening wall brackets.
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Connection of the refrigerant circuit, vacuuming, and nitrogen leak testing.
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Electrical hookup in full compliance with the Canadian Electrical Code.
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Comprehensive functional testing: pressure checks, airflow temperature, remote calibration.
Every step is documented to ensure complete traceability of the work. We provide a full installation report at the end of the job.
Step 4: Usage Tips and Maintenance
Once the system is up and running, we take the time to walk you through:
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Optimal use of the remote control.
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How to adjust the cooling, heating, and dehumidifying modes.
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The importance of cleaning the filters every two weeks.
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The annual professional maintenance we offer, including high-pressure washing, inspection of the outdoor unit, and a complete cleaning.
Available Grants: A Decisive Factor
We help our clients find and obtain available grants, such as:
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Hydro-Québec’s LogisVert program: up to $2,000 for replacing fossil-fuel heating or adding a high-efficiency heat pump.
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Federal Greener Homes Grant: up to $5,000 depending on the unit.
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Municipal programs: some cities offer additional incentives.
We prepare all required documentation: detailed invoices, compliance proof, photos, serial numbers.
Post-Installation: AirGreen’s Unique Customer Service
Our commitment doesn’t end after installation. Thanks to our CRM system, we send you reminders for your annual maintenance, and we’re always available for follow-up questions. If needed, our rapid response team can be on-site within 48 hours across most of Montréal, Laval, Longueuil, and the North and South Shores.
Client Testimonial: Montréal, Plateau Mont-Royal
“I’ve never seen such a professional team. Everything was planned down to the minute, and they explained each step to me. The AC works perfectly, even during a heatwave.” – Marc-Antoine D., owner of a renovated duplex
Why Choose AirGreen for Your HVAC Installation?
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Local expertise: over 15 years of experience in Québec’s climate.
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Certified technicians: highly trained and continuously updated professionals.
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Total transparency: no hidden fees, detailed quotes.
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Complete support: from the initial evaluation to grant submission.
Expert Tips: What to Avoid
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Never install an oversized unit: it will short-cycle constantly, reducing its lifespan.
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Avoid non-RBQ certified installers: you could lose your eligibility for grants.
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Don’t skip the annual maintenance: it impacts efficiency, electricity use, and the system’s lifespan.
In Summary
Behind every breath of cool air is a complex, precise, and expertly executed job. At AirGreen, we don’t just install air conditioners — we create long-lasting comfort, tailored to your lifestyle, local climate, and the highest HVAC standards across Montréal, Laval, Longueuil, the North Shore, and the South Shore. Contact us today for a personalized estimate.