A Strategic HVAC Maintenance Intervention That Saved an Entire System in Longueuil
At AirGreen, our mission is to ensure every commercial air conditioning system operates at peak performance, all year long. We understand just how costly an unexpected failure can be — not only in terms of employee comfort but also for maintaining business continuity. That’s exactly what we prevented during a recent service call in Longueuil, where a simple preventive maintenance visit helped us avoid a complete HVAC system shutdown for a commercial client.
The Situation: A Commercial Building at Risk During a Heat Wave
The owner of a commercial building in Longueuil, home to several small businesses, contacted us for a routine HVAC maintenance check-up. The building was equipped with a central commercial air conditioning system from Goodman, model GPC1436H41 — a reliable and popular choice for medium-sized commercial spaces.
This client, with whom we had an annual maintenance agreement, was simply looking for a mid-season inspection. Yet what started as routine quickly revealed a critical issue.
Diagnosis: Components at Risk Due to Invisible Wear
Upon arrival, our certified technicians performed a series of technical checks, including:
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Inspection of the compressor and electrical connections
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Verification of refrigerant levels
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Evaluation of evaporator and condenser coil performance
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Static pressure and airflow testing
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Thermostat and air filter inspection
It was during this inspection that we found excessive dirt buildup on the condenser coil, which was causing progressive overheating of the compressor. On top of that, we noticed abnormal vibrations in the fan motor, indicating a minor misalignment.
Without immediate intervention, the compressor — the most crucial and costly component of the system — could have failed entirely in the following weeks, leaving the building without cooling during peak summer heat.
AirGreen’s Solution: Precision Preventive Maintenance
Understanding the urgency, we acted immediately with a multi-step process:
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Thorough cleaning of the condenser coil using professional-grade, biodegradable, non-corrosive products
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Realignment of the fan motor and lubrication of all moving parts
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Recalibration of the central thermostat to optimize the cooling cycle
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Replacement of the commercial air filter, which was clogged and far too worn
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Inspection of duct insulation, to prevent energy loss
The intervention took less than three hours, without disrupting the businesses operating within the building. The system was restored to quiet, optimal performance, with a measured 18% reduction in estimated energy consumption for the following month.
What This Service Call Reminds Us About Commercial Maintenance
Never Underestimate the Value of Preventive Maintenance
At AirGreen, we often say that maintenance is the most profitable investment in HVAC. This case in Longueuil proves it: a few hours of service helped avoid tens of thousands of dollars in potential losses, from major repairs to operational downtime.
A High-Performance System, but Vulnerable Without Ongoing Monitoring
The Goodman GPC1436H41 system is known for its durability and SEER 14 energy efficiency, well-suited to commercial needs. But without regular oversight, even top-tier equipment can deteriorate quickly.
Why Businesses in Longueuil Trust Us
Local Expertise, Rapid Response
We specialize in commercial air conditioning on the South Shore, especially in Longueuil, Brossard, Saint-Hubert, and Saint-Lambert. Thanks to our deep understanding of the local commercial landscape, we tailor our solutions to every type of building — from professional offices to industrial facilities and retail centers.
A Proactive, Not Just Reactive, Approach
Our maintenance plans include:
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Scheduled visits with detailed, customized reports
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Early detection of hidden failures
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Recommendations for energy optimization, often eligible for grants
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Priority emergency response
What We Learned: A Lesson for All Building Managers
This case clearly shows that commercial HVAC maintenance should never be seen as an expense, but as a technical and financial safety net. It’s not just about extending a system’s lifespan — it’s about protecting the long-term profitability of a property.
Testimonial from the Building Manager
“Without that routine visit, we probably would’ve had to replace the compressor at the worst possible time — during a heatwave. Thanks to the AirGreen team for their professionalism and sharp eye. It’s reassuring to know we can count on them.”
– Commercial Building Manager, Longueuil
AirGreen: Your Trusted Partner in Commercial Air Conditioning
If you manage a commercial building in Montreal, Laval, Longueuil, on the North Shore or South Shore, know that a preventive maintenance plan can literally save your system. At AirGreen, we don’t just respond to problems — we prevent them.
Reach out today to assess your HVAC maintenance needs and discover how one strategic visit can protect your investments while improving your energy efficiency.