AirGreen’s Rapid Response in Longueuil: An HVAC Emergency Turned Into a Long-Term Solution
When the air conditioning systems of a condominium complex in the heart of Longueuil started to fail during a major summer heatwave, the building managers were suddenly facing a crisis. Complaints from multiple residents about discomfort, unusual noises, and weak performance from their old wall-mounted air conditioners made one thing clear: they urgently needed a reliable, energy-efficient, and quickly deployable wall-mounted air conditioning solution. That’s when AirGreen was brought in.
We’re sharing here a real-world service call that showcases our expertise in HVAC installation under complex conditions, and demonstrates how smart planning and the right technology choices can help avoid a building-wide comfort emergency.
The Situation: Aging Units and a Management Team Under Pressure
The building in question consists of 18 residential units across three floors. Many of the old wall-mounted air conditioners (installed over 15 years ago) were suffering from refrigerant leaks, excessive noise, and high energy consumption. Some individual owners had already considered replacing their units, but the condo board opted for a coordinated building-wide approach.
Challenges identified:
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Avoid damaging the building’s protected façade.
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Respond to an urgent thermal comfort issue during peak summer.
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Install wall-mounted systems that are efficient and quiet.
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Ensure that the installation would be standardized across all units, while respecting individual unit constraints.
Our Technical and Strategic Approach: Choosing the Right Wall-Mounted AC Units
Following a comprehensive on-site assessment, our experts recommended installing Gree Lomo 12,000 BTU wall-mounted air conditioners, a model ideally suited to mid-sized residential units. This choice was based on several key factors:
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Excellent energy efficiency (SEER 20 and HSPF 10).
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Ultra-quiet operation, crucial for multi-unit comfort.
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Compact design, minimizing the visual impact on building façades.
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Eligibility for LogisVert grants, giving owners access to up to $1,600 per installed unit.
Technical Specifications of the Installed Unit
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Brand / Model: Gree Lomo 12,000 BTU
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Type: Wall-mounted air conditioner (cooling only)
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Cooling Capacity: 12,000 BTU
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Sound Level: As low as 24 dB
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Energy Class: A++ (SEER 20)
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Eligible for Grant: Yes, via Hydro-Québec’s LogisVert program
Key Installation Steps and Custom Coordination
To address the logistical constraints of the condominium, we scheduled the installation to take place over four business days, working directly with the building’s property manager.
Day 1 – Preparation:
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Technical inspection of each unit.
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Validation of shared drilling points.
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Preparation of outdoor brackets on balconies.
Days 2 to 4 – Installation:
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Installation of 6 units per day (evaporators and compressors).
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Individual commissioning with a walkthrough for each resident.
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Leak testing of refrigerant lines, thermostat calibration.
Immediate Results and Resident Feedback
As soon as the work was completed, residents reported a significant improvement in thermal comfort, as well as a notable reduction in noise compared to the old units. The condo board praised our efficiency and the top-tier quality of the work, even with the tight deadlines.
“The service was flawless from start to finish. The AirGreen team was proactive, punctual, and fully respectful of condo regulations.” — Ms. Fournier, Condo Board President.
Why This Project Is a Model for the South Shore
This project perfectly illustrates our ability to:
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Manage large-scale HVAC installations in complex residential settings.
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Deliver customized solutions while maintaining uniform standards.
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Optimize costs through our deep knowledge of available grants.
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Stick to short timelines without compromising quality.
Advice for Condos: Avoid Common Mistakes
Here are a few common mistakes we avoided thanks to our experience:
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Letting each owner choose a different unit, causing technical and aesthetic inconsistencies.
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Delaying the intervention to the fall, even though the issue was urgent.
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Overlooking the implications of shared façades (random drilling, exposed ducts).
We strongly advise condo managers to centralize wall-mounted HVAC upgrade planning, and to consult a professional like AirGreen at the first signs of system wear.
Our Wall-Mounted HVAC Expertise: A Real Competitive Advantage
At AirGreen, we understand the unique challenges of multi-unit residential buildings. Our experience allows us to anticipate technical and logistical issues while guaranteeing a clean, fast, and efficient installation every time.
We regularly serve Longueuil, Montréal, Laval, the North Shore, and the South Shore, for both residential and commercial projects, and we always tailor our approach to the client's specific situation.
Conclusion: A Successful Project That Sets a Standard for Other Condos
This Longueuil project didn’t just resolve an urgent comfort issue—it also showed that a well-planned installation of wall-mounted air conditioners can increase a building’s overall value, optimize collective energy costs, and significantly improve quality of life for residents.
Do you manage a condo on the South Shore, in Montréal, Laval, or on the North Shore and want to modernize your cooling systems? Reach out to AirGreen for a free consultation, personalized technical advice, and installation that meets the highest standards in the HVAC industry.