Protecting Your Comfort and Investment in Longueuil Through Smart HVAC Maintenance
At AirGreen, we know that a well-maintained wall-mounted heat pump can last many more years than expected while maintaining optimal performance and high energy efficiency. In this article, we share a real case from Longueuil, where a simple preventive maintenance program literally doubled the service life of a heating and cooling system. A clear demonstration that regular maintenance is not a useless expense, but a smart investment for any wall-mounted heat pump owner.
An Older Installation... Still Working Like New
More than 12 years ago, we installed a Fujitsu wall-mounted heat pump, model 12RLFW1, in a single-family home in the Saint-Hubert neighborhood of Longueuil. This 12,000 BTU model offered excellent energy performance at the time, with a SEER rating of 20 and HSPF above 10, making it eligible for government rebates available back then.
Our client, who was very mindful of their unit's long-term performance, chose from day one to enroll in our annual preventive maintenance program.
Concrete Actions Taken Each Year
Each maintenance visit included a series of rigorous and precise tasks:
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Complete cleaning of the indoor unit filters and wall coil fins
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Degreasing of the outdoor heat exchanger using an eco-friendly solution
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Inspection of electrical connections, tightening and continuity testing
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Measurement of refrigerant pressures to detect any hidden leaks
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Disinfection of the condensate drain to prevent indoor water damage
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Testing of temperature sensors and thermostat to ensure optimal control
These services, performed every spring before the cooling season, allowed us to maintain nearly the same operating efficiency as when the unit was first installed.
What We Observed 12 Years Later
On our most recent visit to the same property in March 2025, we were truly impressed. The Fujitsu heat pump, despite its age, was operating quietly, still delivering solid performance, and most importantly, had never required any major repair. No refrigerant leaks, no part replacements, no compressor lock-up — nothing.
We conducted a full performance review:
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Heating mode: supply air measured at 32°C with -3°C outdoor temperature
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Cooling mode: supply air measured at 13°C with 27°C indoor temperature
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Electrical consumption stable and still in line with original specs
When compared with other clients who had the same model but no regular maintenance, we observed a difference of 4 to 6 additional years of usable life for units that received annual care.
Mistakes You Absolutely Need to Avoid
This case also shows what not to do. Too many clients wait until their unit starts making noise or no longer heats before taking action. Here are the most common mistakes:
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Neglecting filter cleaning for months, which strains the compressor
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Letting vegetation block the outdoor unit, drastically reducing heat exchange
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Ignoring strange noises or vibrations, which are early signs of mechanical issues
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Forgetting about clogged drains, often responsible for indoor water leaks
A simple yearly call to a specialized company like AirGreen can help avoid all of these problems.
What Our Preventive Maintenance Service in Longueuil Includes
Our visits are 100% customized depending on your unit’s make and model and your home's specific setup. For a standard wall-mounted heat pump (Fujitsu, Gree, Sharp, Lennox, etc.), our service includes:
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Full inspection of the indoor wall unit
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Inspection of the outdoor compressor, cleaning and fan testing
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Performance test in both heating and cooling modes
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Check of refrigerant levels (R-32, R-410A, R-454B depending on the unit)
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Adjustment of programmable or smart thermostat settings
Everything is documented in a detailed service report, emailed to each client after the visit.
Why Longueuil Residents Trust Us
In Longueuil, especially in the neighborhoods of Saint-Hubert, Vieux-Longueuil, and Greenfield Park, our certified technicians conduct weekly maintenance visits for residential HVAC systems. Our clients appreciate our:
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Educational approach: we explain every step
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Transparency: no surprise charges
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Punctuality: we respect our scheduled windows
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Know-how: over 1,200 wall units maintained in 2024
Rebates and Long-Term Savings
A well-maintained unit doesn’t just last longer. It also uses up to 20% less electricity and maintains its eligibility for certain energy efficiency rebates, such as the Hydro-Québec LogisVert program.
In addition, a regular maintenance history becomes a strong selling point if you ever put your house on the market: buyers will know your HVAC system is reliable and well cared for.
Should You Replace or Maintain? A Proper Diagnosis Makes All the Difference
Some clients call us thinking they need to replace their heat pump, when in fact a simple maintenance visit brings the system back to life. Conversely, in other cases, we do recommend a replacement (especially for outdated R-22 systems or those over 15 years old with recurring failures).
That’s why we always offer a free in-home evaluation before making any recommendation.
In Summary: Maintenance = Longevity + Savings
This real-world case from Longueuil proves one thing: an annual preventive maintenance visit significantly extends the lifespan of a wall-mounted heat pump, while guaranteeing optimal comfort, higher efficiency, and a better return on your investment.
At AirGreen, we believe that proper maintenance is the foundation of a high-performing, long-lasting, and environmentally friendly HVAC system.
Contact us today to schedule your next maintenance visit and ensure the longevity of your equipment.