A simple HVAC maintenance call in Laval that made all the difference
In Laval, in a quiet residential neighborhood, a customer contacted us with a very common concern among owners of wall-mounted heat pumps: a persistent, abnormal noise coming from the outdoor unit. The system, a high-performance 12,000 BTU Gree Lomo heat pump, installed a few years prior by another contractor, seemed to be working properly in terms of thermal output—but it was seriously affecting the acoustic comfort of the home.
At AirGreen, we know that a noisy heat pump should never be ignored. In addition to being annoying, it can be a sign of dirt buildup, mechanical wear, or lack of regular maintenance. In this particular case, our expertise in HVAC maintenance in Laval allowed us to resolve the issue without costly replacements or invasive repairs. Here’s how.
Problem analysis: a Gree heat pump making too much noise
When our technician arrived on-site, they immediately conducted a full inspection of both the indoor and outdoor units. Although the outdoor unit looked clean on the surface, several signs indicated a lack of regular maintenance:
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The fan of the outdoor unit had a thin layer of dust and debris.
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The condenser fins were partially blocked, reducing airflow.
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A slightly unbalanced fan blade caused amplified vibrations with every startup.
Each of these issues might seem minor individually, but combined they created a significant increase in perceived noise every time the heating or cooling system kicked in.
A simple, fast, and effective solution: professional maintenance by AirGreen
We performed a complete cleaning of the heat pump, following our proven HVAC maintenance protocol:
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Low-pressure high-temperature wash of the outdoor fins using non-corrosive cleaning products.
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Partial disassembly of the exterior casing to access the fan, followed by cleaning and blade realignment.
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Vacuuming of the indoor ducts to remove accumulated dust.
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Tightening of all electrical connections to prevent parasitic vibrations.
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Application of a specialized lubricant on all approved moving parts.
Immediate result: the noise level dropped by over 60%, giving our customer a peaceful environment, day and night. No replacement, no surprise costs—just a targeted preventative maintenance, done by professionals.
Why simple HVAC maintenance can fix a major issue
Many homeowners overlook the importance of regular heat pump maintenance. Yet, a poorly maintained system:
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Consumes more energy, compensating for reduced performance.
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Becomes noisy, due to dust buildup and vibration.
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Can suffer premature damage, leading to costly repairs.
At AirGreen, we deal with this kind of situation every day throughout the Laval region. This case proves that what seems like a complicated problem can often be resolved through thorough, professional maintenance.
AirGreen’s maintenance program: proactive and personalized
To prevent the issue from returning, we offered the customer our annual preventative maintenance program, which includes:
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One scheduled visit per year before the heating or cooling season.
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Full cleaning of both indoor and outdoor units.
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Refrigerant level checks.
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Inspection of all electrical and mechanical components.
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A detailed report with any recommendations.
This program is perfect for homeowners with wall-mounted or central heat pumps, including models from Gree, Fujitsu, Daikin, Sharp, Midea, and more.
Our service calls in Laval and the North Shore: no gimmicks, just results
This is far from an isolated case. In Chomedey, Duvernay, Laval-des-Rapides, and even Fabreville, we’ve handled dozens of similar interventions. Here are a few examples:
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In Saint-Vincent-de-Paul, a customer reported a low rumble in heating mode: it turned out to be a cracked fan blade, which we replaced on-site.
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In Pont-Viau, a customer noticed vibrations at startup: simply tightening the wall brackets resolved it.
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In Laval-Ouest, we diagnosed an overworked compressor caused by clogged filters.
Every job is different, but our approach stays the same: precise diagnosis, targeted action, and maximum efficiency.
What you can do before we arrive
Even before calling our technicians, here are a few simple steps you can take:
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Regularly clean the filters of the indoor unit (ideally once a month).
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Make sure nothing is blocking the grilles of the outdoor unit (leaves, snow, debris).
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Stay alert to any changes in noise, smell, or performance.
But as soon as you have any doubt, call in a professional. Proper maintenance extends your system’s lifespan, improves performance, and saves you money in the long run.
Why choose AirGreen for your HVAC maintenance in Laval
At AirGreen, our specialty is residential and commercial HVAC in Greater Montreal. What sets us apart:
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A team of experienced, certified, and passionate technicians.
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In-depth knowledge of the most popular heat pump models in Quebec.
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Thorough, professional service with no surprises.
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Wide coverage area: Laval, Montreal, Longueuil, North Shore, South Shore.
Our goal is not just to “get the job done,” but to provide you with lasting comfort—quiet, energy-efficient, and worry-free.