The summer heat is settling in Montréal—but is your air conditioner ready to face it without turning your daily life into a nightmare?
As temperatures steadily rise across Montréal, Laval, Longueuil, as well as the South Shore and the North Shore, more and more homeowners and property managers are seeking to ensure that their wall-mounted air conditioner or central air conditioning system will operate at peak performance throughout the hot season. At AirGreen, we understand just how crucial it is to anticipate issues before they spiral into stressful, costly, or uncomfortable situations in your home or building.
Why your air conditioner could quickly become a major problem
A poorly maintained, poorly installed, or simply ill-suited air conditioner for the space it needs to cool can trigger a cascade of issues: poor performance, strange noises, energy spikes, or complete breakdowns at the worst possible time. Here are the most common mistakes we see during our residential and commercial HVAC installations throughout Greater Montréal:
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Clogged filters that haven’t been changed in several seasons
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Refrigerant leaks, often due to low-quality installation or aging units
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Electrical issues related to worn or unsafe connections
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Undersized or oversized units, affecting the thermal regulation and overall efficiency
At AirGreen, our mission is to ensure these mistakes don’t happen in your home. We combine technical expertise, installation precision, and personalized local service to deliver reliable and long-lasting solutions.
Our recommendations for a stress-free summer with your air conditioner
1. Have your unit inspected and serviced BEFORE the summer heat hits
We always recommend a full maintenance service for your air conditioning system early in the spring. Our certified technicians carry out a thorough inspection, including:
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Deep cleaning of filters and the heat exchanger
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Refrigerant level check
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Electrical wiring and connection inspection
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Thermostat calibration and a full system performance test
This kind of maintenance helps prevent up to 80% of the breakdowns we’re called for during the peak heat of summer.
2. Match the unit’s power to your space
A recurring problem in many homes throughout Montréal and Laval, especially in older or renovated buildings without a thermal study, is the installation of an air conditioner whose BTU capacity doesn’t match the square footage it needs to cool.
At AirGreen, every project begins with a custom thermal analysis. Whether you choose a Fujitsu wall-mounted heat pump, a Goodman central air conditioner, or a wall-mounted model from Gree or Tosot, we recommend the unit that’s perfectly suited to your specific needs.
3. Don’t underestimate the importance of professional installation
Even the best unit can cause problems if it’s not installed correctly. That’s why we insist on professional installation by our experienced team. For example, during a recent job in Longueuil, we replaced an 18,000 BTU unit that had been installed too close to a shared wall, causing loud vibrations and overheating. After our proper reinstallation, the noise was gone, and energy consumption dropped by 25%.
Case study: a successful intervention on the North Shore
Last June, a family in Blainville, on the North Shore, contacted us in a panic. Their old air conditioner kept breaking down in waves. Upon inspection, we found:
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An installation over 15 years old with obstructed ductwork
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Insufficient power (12,000 BTU for an open-concept living room-kitchen of 800 sq. ft.)
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No maintenance for more than 5 years
We installed a new Gree Lomo 18,000 BTU wall-mounted air conditioner, perfectly sized for their space. The installation took less than a day, including an anti-vibration wall bracket for the outdoor unit, clean and aesthetic conduit routing, and thermostat calibration. Since then, the family has told us they’re thrilled: improved comfort, quiet operation, and noticeable energy savings.
Don’t miss out on available rebates
Did you know that many air conditioners and heat pumps installed by AirGreen qualify for Hydro-Québec’s LogisVert rebates? This applies to several Gree, Fujitsu, Sharp, and Bosch wall-mounted units, which are especially popular for their high energy performance and low environmental impact.
We help each customer through the entire rebate application process, ensuring a complete file that facilitates partial reimbursement of their initial investment. For some installations, we’ve helped clients save up to $1,860 in Brossard and Sainte-Julie through these programs.
Practical tips to extend your air conditioner’s life
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Clean the filters monthly during peak usage periods
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Keep the outdoor unit clear of leaves, dust, and debris
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Check for proper drainage to prevent water overflow
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Avoid setting the thermostat too low—extreme differences can strain the unit
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Schedule a yearly professional tune-up with AirGreen, even if your unit seems to be working fine
Why choose AirGreen for your air conditioning needs?
We take pride in being a trusted name in HVAC services in Montréal, with hundreds of successful installations and a reputation for fast, transparent after-sales service. Whether you’re in Laval, Longueuil, the South Shore or the North Shore, our team is ready to deliver tailored, reliable, and aesthetically integrated solutions for your home or building.
At AirGreen, we believe prevention is the best solution. By preparing now, you’ll avoid last-minute emergencies, costly repairs, and the stress of a sudden breakdown in the middle of summer.
In summary
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A poorly prepared air conditioner can quickly become a major headache
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Preventative maintenance and proper installation are the keys to a comfortable summer
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AirGreen offers custom, fast, and dependable solutions
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We help you take advantage of available LogisVert rebates
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We serve the entire Greater Montréal area, including Montréal, Laval, Longueuil, the South Shore, and the North Shore
Contact us today for an inspection, a free quote, or to schedule maintenance for your air conditioner. Don’t let summer take you by surprise—trust AirGreen’s HVAC expertise.