Introduction: a mishap narrowly avoided thanks to AirGreen maintenance
At AirGreen, we know that heating systems can run smoothly for years… until one day, skipping maintenance can lead to major breakdowns in the middle of winter. That was exactly the case for Ms. G., owner of a single-family home in Longueuil, who agreed to share her story with us.
This testimonial shows how timely preventive maintenance can make all the difference between optimal winter comfort and an avoidable disaster. Thanks to the intervention of our specialized technicians, Ms. G. avoided a serious failure that could have cost thousands of dollars in repairs… and a lot of discomfort.
A typical Longueuil scenario: a well-insulated home, but a neglected system
Ms. G. lives in a well-insulated bungalow built in the 2000s in the Fatima neighborhood of Longueuil. Her main heating system is a Gree Lomo wall-mounted heat pump, 24,000 BTU, installed six years ago by another contractor.
Until recently, it worked without any issues. But like many homeowners, she had never done preventive maintenance on the unit.
“I thought as long as it was heating, everything was fine. I had no idea the outdoor unit could get that dirty,” she told us.
Early warning signs ignored: lower performance, unusual noise
As winter approached, Ms. G. began to notice:
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Longer heating times
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A higher electricity bill
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A metallic noise when the compressor shut off
Instead of waiting for a complete failure, she decided to contact our HVAC maintenance team based on a neighbor’s recommendation.
The AirGreen diagnosis: a heat pump suffocating in dirt
Upon arrival, our certified technicians performed a full inspection of the heat pump. Here’s what we found:
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Outdoor condenser blocked by leaves, pollen, and dust
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Unbalanced fan causing abnormal vibration
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Clogged indoor drainage tray, risking water damage
We then carried out:
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A deep cleaning of both outdoor and indoor units
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A fan balancing service
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Complete clearing of drainage lines
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A check of system pressure and R-32 refrigerant
Thanks to this preventive intervention, the system immediately regained optimal performance.
The consequences avoided: total breakdown and high repair costs
According to our lead technician:
“If Ms. G. had waited just two more weeks, the compressor probably would have overheated and failed. That kind of repair would’ve cost at least $2,500.”
The maintenance, on the other hand, cost less than $300, including travel, labor, and full cleaning.
AirGreen: HVAC maintenance tailored to Longueuil homes
Our team frequently works across various Longueuil neighborhoods—Saint-Hubert, Vieux-Longueuil, Greenfield Park, and LeMoyne—to deliver personalized HVAC maintenance services.
We adapt our approach depending on:
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The system type (wall-mounted heat pump, central system, electric furnace)
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The equipment’s age
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The external environment (trees, pollen, prevailing winds)
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Usage frequency (primary or supplemental heating)
Concrete recommendations to avoid winter surprises
Here are our practical tips for owners of heat pumps or wall-mounted air conditioners in Longueuil and the South Shore:
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Schedule maintenance every fall, before the first frost
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Watch for unusual noises or performance drops
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Clean the indoor filter regularly (monthly)
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Clear outdoor units of leaves and debris
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Call a certified professional for any complex intervention
Conclusion: simple maintenance, guaranteed peace of mind
Thanks to her quick action, Ms. G. was able to enjoy a warm, comfortable winter with no heating interruptions or billing surprises.
At AirGreen, we believe that prevention is key to ensuring the longevity and efficiency of your HVAC system, especially in a climate as harsh as Longueuil, Montréal, Laval, the North Shore and the South Shore.
Call us today to schedule your annual preventive maintenance, and give yourself peace of mind… even in the heart of January.