Réparation d’unité de climatisation YORK sur toit à Montréal
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YORK Rooftop AC Unit Repair in Montréal

Reviving Comfort: How We Transformed a Broken Rooftop HVAC System

At AirGreen, we pride ourselves on being Montréal’s trusted experts in commercial HVAC services. Our recent project—a YORK Rooftop Unit repair—demonstrates our commitment to excellence and customer satisfaction. This isn’t just about fixing machines; it’s about restoring comfort, enhancing efficiency, and ensuring long-term reliability. Let us take you through the fascinating story of how we tackled a challenging repair and brought life back to a rooftop unit.


The Problem: A Rooftop Unit in Despair

Nestled atop a bustling commercial property in Montréal, the YORK rooftop HVAC system was struggling. The customer reported inconsistent cooling, strange noises, and a complete shutdown during peak hours—an absolute nightmare for any business. Upon inspection, we found a host of issues:

  • Burnt wiring: Likely caused by overheating and lack of regular maintenance.
  • Faulty compressors: These critical components had given up after years of hard work.
  • Clogged drainage system: Water pooling within the unit was creating inefficiencies and potential damage.
  • Wear on electrical controls: The unit’s brain was no longer functioning optimally.

With such a list of problems, most contractors would suggest a replacement. But at AirGreen, we see challenges as opportunities to showcase our expertise.


Our Diagnosis: Leaving No Stone Unturned

Our skilled technicians approached the repair systematically. Armed with specialized tools and extensive knowledge, we performed a thorough diagnosis. We believe that understanding the root cause is key to delivering long-lasting solutions. Here’s how we proceeded:

  1. Thermal imaging diagnostics: Identifying hotspots to pinpoint overheating areas.
  2. Electrical testing: Verifying the integrity of circuits and identifying short circuits.
  3. Component assessment: Examining the compressors, capacitors, and fan motors for operational issues.
  4. Airflow evaluation: Ensuring proper ventilation within the system.

This meticulous approach allowed us to identify not only the visible problems but also underlying issues that could lead to future breakdowns.


The Solution: A Combination of Expertise and Precision

Repairing a commercial rooftop unit requires more than just replacing parts. It’s about ensuring the entire system operates cohesively. Here’s what we did to restore this YORK unit:

1. Electrical Overhaul

We replaced all damaged wiring and upgraded the electrical controls to a more robust system. This ensured that the unit’s operations would be smooth and safe for years to come.

2. Compressor Replacement

Two new compressors were installed to reinstate the unit’s cooling capabilities. We calibrated these components to match the building’s cooling requirements, ensuring energy efficiency.

3. Drainage System Repair

Clogged drains can wreak havoc on any HVAC system. We cleared the blockage, installed a new condensate pump, and applied anti-corrosion treatments to prevent future issues.

4. Preventive Maintenance

We didn’t just stop at repairs. Our technicians performed a full preventive maintenance service, including cleaning the coils, lubricating moving parts, and tightening connections.

5. Performance Testing

Before declaring the job complete, we ran the unit through a series of performance tests, ensuring optimal airflow, cooling efficiency, and energy consumption.


Why Customers Choose AirGreen for Commercial HVAC Repairs

Unmatched Expertise

From electric boilers to heat recovery units, we handle a wide range of HVAC systems. Our team brings years of experience and cutting-edge tools to every project.

Tailored Solutions

We understand that no two HVAC systems are the same. That’s why we customize our approach to meet the unique needs of each client.

Commitment to Quality

Every repair we undertake is backed by our commitment to excellence. We don’t just fix problems; we provide solutions that last.

Transparent Communication

Our customers appreciate our honesty and clear explanations. We keep you informed every step of the way, so there are no surprises.


The Outcome: A Happy Customer and a Reliable HVAC System

The repaired YORK rooftop unit is now running like new. The customer has already noticed significant improvements in indoor comfort and energy bills. With the system operating at peak efficiency, the business can focus on what matters most—serving their customers.

But the story doesn’t end there. We enrolled the client in our preventive maintenance program, ensuring their HVAC system remains in top shape. Regular check-ups, cleaning, and adjustments will keep this rooftop unit performing efficiently for years to come.


Key Takeaways for Business Owners

  1. Routine Maintenance Matters Neglecting regular maintenance can lead to costly repairs and system downtime. A small investment in preventive care can save you thousands in the long run.

  2. Choose the Right Partner Not all HVAC contractors are created equal. Choose a company like AirGreen, with proven expertise and a customer-centric approach.

  3. Upgrade When Necessary Sometimes, repairing an old system isn’t the most cost-effective option. Consult with professionals to determine whether a repair or replacement is best for your situation.


Why This Project Matters

This project highlights the importance of expert diagnosis, innovative solutions, and a commitment to customer satisfaction. At AirGreen, we don’t just repair HVAC systems—we build lasting relationships with our clients. Whether you’re in Montréal, Laval, Longueuil, or beyond, we’re here to keep your business comfortable and efficient.


Contact Us for Your HVAC Needs

Is your commercial HVAC system in need of repair? Don’t wait until it’s too late. Contact AirGreen today and experience the difference of working with Montréal’s top HVAC professionals.