Giving heat pumps a second life on the South Shore: efficiency, savings and durability guaranteed thanks to deep maintenance
On the South Shore of Montreal, the performance of wall-mounted and central heat pumps heavily depends on regular maintenance. Too often overlooked, professional cleaning of HVAC systems is a key lever to avoid costly breakdowns, maintain optimal energy efficiency, and extend the life of the equipment. At AirGreen, we’ve supported dozens of clients across Longueuil, Brossard, Saint-Lambert, Boucherville, and Saint-Hubert, offering them preventive cleaning services that have literally saved their heating and cooling systems. Here are five concrete examples illustrating the direct impact of our on-site expertise.
A rescue in Longueuil: 18,000 BTU Gree Sapphire wall-mounted heat pump
In a bungalow in Longueuil, a family contacted us about performance issues with their 18,000 BTU Gree Sapphire wall-mounted heat pump installed in 2021. The unit was no longer delivering steady warm air, and the indoor unit was making an unusual noise. Upon arrival, we quickly saw a heavy buildup of dust and mold on the evaporator fins. After a full cleaning – degreasing, high-pressure rinsing, and antibacterial treatment – the unit regained full functionality. Thanks to this intervention, the clients avoided a premature replacement and immediately recovered their comfort.
Brossard: A Tosot wall-mounted air conditioner on the verge of breakdown
In a condo in Brossard, a 12,000 BTU Tosot wall-mounted air conditioner was randomly showing startup errors and shutting down after only a few minutes of operation. The owner feared an electronic failure. A thorough inspection revealed a major blockage in the condensation drain and severe dirt buildup in the blower fan. We dismantled the unit, washed each component in depth, cleared the pipes, and reassembled everything. The result: no parts needed replacing—just a life-saving cleaning. Since then, the client schedules annual spring maintenance with AirGreen.
Saint-Lambert: A Fujitsu KZAH R-32 central heat pump preserved
A private school in Saint-Lambert was equipped with a Fujitsu KZAH R-32 central heat pump recently installed to service its administrative offices. Despite a quality installation, a sudden drop in performance was reported after only 18 months. Our technicians’ assessment identified a buildup of fine debris on the outdoor coil due to the surrounding wooded area. Using a gentle pressure wash with biodegradable cleaner and pressure balance verification, we prevented premature compressor wear. This cleaning also improved energy efficiency by 22% as noted on the building’s energy report.
Boucherville: A central Goodman unit saved from critical clogging
In Boucherville, a multi-generational home was using a 36,000 BTU Goodman R-32 central heat pump, installed nearly six years ago without any maintenance. The airflow was weak, ducts were saturated, and filters had never been changed. The outdoor unit was clogged with vegetation. We performed a full cleaning: ducts, filters, heat exchangers, condenser, fans. This several-hour operation not only restored the unit’s full power but allowed the homeowners to reduce their monthly energy consumption by over 18%.
Saint-Hubert: 12,000 BTU Sharp ZU1 wall-mounted heat pump blocked by mold
A young couple in a rental apartment in Saint-Hubert suffered from allergy issues, especially during the heating season. Their 12,000 BTU Sharp ZU1 wall-mounted heat pump, installed two years ago, had never been serviced. A quick inspection revealed black mold in the drain pan and on the evaporator. We carried out a full antifungal cleaning with partial dismantling of the unit, then applied a certified sanitizing treatment. Since then, the residents have reported a clear improvement in indoor air quality and the return of quiet operation.
Why is preventive cleaning so critical for your heat pump?
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Preserves energy performance: A dirty unit can lose up to 30% efficiency.
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Prevents breakdowns: Dirt adds strain on components, accelerating wear.
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Improves air quality: Mold and bacteria can grow in neglected units.
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Saves energy: A clean system uses less power for the same comfort.
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Extends lifespan: Regular maintenance can add 5 to 7 years to a system’s life.
What does an AirGreen professional cleaning include?
Our HVAC cleaning services on the South Shore include:
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Partial dismantling of wall-mounted or central units
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Deep cleaning of coils (evaporator and condenser)
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Degreasing and rinsing of filters and fans
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Antibacterial and antifungal treatment
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Pressure and temperature checks
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Post-cleaning performance testing
Our expertise, at your service across the South Shore
At AirGreen, we don’t just clean – we extend the life of your HVAC equipment while helping you save long term. With our strong presence throughout the South Shore, from Longueuil to Candiac, including Saint-Bruno-de-Montarville and La Prairie, we respond quickly with tailored solutions based on the condition and type of your system.
Should you have your heat pump serviced every year?
Absolutely, yes. Even a new or lightly used unit collects dust, moisture, and microorganisms. Annual maintenance is strongly recommended, especially in spring, before the hot season. Often eligible for maintenance credits from certain energy providers, this service is an investment that prevents costly repairs or early replacements.
Trust AirGreen for the maintenance of your heat pumps
We specialize in systems from Fujitsu, Gree, Sharp, Goodman, Tosot, Bosch, Haxxair, and many others. As certified professionals, we know the specifics of each brand and adapt our cleaning protocols accordingly. Trust our recognized expertise across Greater Montreal to take care of your heating, ventilation and air conditioning system.
Conclusion: A professional cleaning, lasting comfort
Each case shared here shows the importance of timely HVAC cleaning, whether for a wall-mounted or central heat pump, in a home, condo, or institutional building. Don’t let dirt compromise your comfort or finances. On the South Shore, AirGreen is your trusted HVAC partner.