AirGreen's Expertise in Solving Commercial Heating Problems
In the commercial heating sector in Montréal, frequent breakdowns are never just random. At AirGreen, we respond weekly to commercial clients facing malfunctioning heating systems, often with no clear explanation. Behind every recurring issue, there's usually one or more hidden causes that go unnoticed by the untrained eye. This is where our expertise comes in.
In this article, we reveal the 5 most commonly overlooked causes of recurring commercial heating failures. Based on our recent service calls across Montréal, Laval, Longueuil, the North Shore, and the South Shore, these real-life cases demonstrate our ability to diagnose and fix problems at the root—not just patch them temporarily.
Poor Initial HVAC System Design
The first mistake, often made right from the start, is an inadequate HVAC system design. Too often, commercial buildings are equipped with oversized or undersized systems, poorly distributed or poorly ventilated. This leads to:
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Premature wear and tear on components
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Heating cycles that are too short or too long
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Excessive energy consumption
We were recently called to a warehouse in Ville Saint-Laurent, where a 10-ton central system was running almost non-stop. The result: compressors were being replaced every two years. Our team redesigned the air distribution, adjusted the power capacity, and installed a multi-zone control thermostat, reducing service calls by 38%.
Neglected HVAC Maintenance: A Major Cause of Breakdowns
Neglecting preventive maintenance is one of the most widespread factors. A clogged heat exchanger or blocked filter doesn’t just reduce efficiency—it directly compromises the equipment’s lifespan.
At a restaurant in Laval, filters hadn’t been changed in over 18 months. The result: blower motor overheating, abnormal pressure readings, and full system shutdown. Our technicians implemented an automated quarterly maintenance plan, ensuring stable and continuous performance, even during peak winter months.
Poor Quality of Initial Installation
A poorly executed HVAC installation is often the root of recurring breakdowns. A bad weld, an incorrectly sloped drain line, or unstable electrical connections can go unnoticed for months—until the system shuts down entirely.
In Longueuil, a small clothing store was experiencing sporadic heating shutdowns. Diagnosis: water accumulation in a poorly sloped drain line, triggering a safety shutoff. After our complete reinstallation of the drainage line, the issue never reappeared.
Improper Use of the System by Staff
Sometimes, the users themselves unknowingly cause the malfunctions. In many cases, we’ve observed that staff frequently tamper with thermostat settings, or even shut off the system using main switches.
At a performance hall on the South Shore, we installed a remotely managed control system protected by a password. Since then, the system has been running without interruption, and the temperature remains stable year-round.
Normal Wear of Components That Aren’t Replaced in Time
Lastly, we must not underestimate the impact of end-of-life components that aren’t replaced on schedule. Parts like belts, relays, thermistors, or blowers all have limited lifespans. Ignoring them is like driving straight into a breakdown.
We recently replaced a worn-out blower motor in an office building in Terrebonne (North Shore). Since then, service calls dropped to zero, and the ambient noise level significantly decreased, improving occupant comfort.
What We Recommend to All Commercial Clients
At AirGreen, we believe a good commercial heating system relies on four key pillars:
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A complete technical evaluation from the start
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A flawless installation by certified professionals
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An HVAC maintenance plan tailored to your needs
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A control system that’s user-friendly but secure
Our teams, based in Montréal, Laval, Longueuil, the North Shore, and the South Shore, are available to conduct a full inspection of your existing systems, provide a detailed diagnostic, and recommend long-term solutions.
Testimonial: A Community Center in Montréal Saved from a Winter Breakdown
In the middle of January, a community center in Montréal-Nord called us in an emergency. The system wasn’t heating, and the indoor temperature had dropped to 12°C. After our diagnosis, we discovered a burnt control relay and poor airflow. Within less than 24 hours, we:
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Replaced the relay and control board
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Cleaned the heating coils
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Rebalanced the air system
The result: the system was restored to full, stable functionality, and the client has since signed an annual maintenance contract with us.
Why Choose AirGreen for Your Commercial Heating Needs?
AirGreen stands out through its technical precision, deep understanding of local challenges, and a proactive approach focused on prevention and performance. Whether you’re the owner of an office building in Laval, a warehouse manager in Longueuil, or a restaurant owner in Montréal, we have HVAC solutions tailored to your situation.
We install and maintain the most trusted brands: Fujitsu, Gree, Goodman, Bosch, Trane, Lennox, and many more. Our interventions are precise, our timelines are respected, and our results are measurable.
Conclusion: Don’t Let Breakdowns Repeat Themselves
Recurring commercial heating breakdowns should never be considered normal. Every system failure represents a cost, discomfort, and risk. At AirGreen, we respond to fix today, and prevent tomorrow. Contact us for a professional evaluation and a long-term partnership you can count on.