Heat Pump Repair and Freon Recharge in Côte-des-Neiges, Montréal
We transformed a failing heat pump in Côte-des-Neiges, fixing leaks and recharging Freon. The result? A machine that runs like new, and a thrilled customer!

In summer, the outdoor unit rejects the house's heat outside.
Generic illustration of this type of installation, not a survey of this job site. Tap a number.
Mounted level on a wall plate, high enough for the air to reach the whole room, with enough space around it to slide the filters out easily.
The refrigerant lines, the communication cable and the drain go through the wall in a single opening, sealed against water, cold air and insects.
Two insulated copper pipes connect the two units. Outside, a line cover can protect them from sun, knocks and weather.
A shut-off switch near the outdoor unit isolates it safely for service. It must stay accessible at all times.
The compressor and the fan. In heating mode it captures heat from the outdoor air, even in winter, and moves it inside.
On the ground or on the wall, it keeps the unit above accumulated snow. The unit stays clear and defrost water can drain away.
The fan needs to blow freely. Storage, a fence or a wall too close, and efficiency drops while noise goes up.
Breathing New Life Into a Wall-Mounted Heat Pump
At AirGreen, we take pride in our comprehensive HVAC expertise, and today’s story showcases just how effective a well-executed repair and Freon recharge can be. Located in the vibrant Côte-des-Neiges district, our latest project involved breathing life back into a wall-mounted heat pump that had been underperforming for quite some time. Let’s dive into the details of this successful repair and the significance it holds for our happy customer.
The Challenge: A Heat Pump That Had Lost Its Edge
Our customer had noticed that the heat pump wasn’t delivering the refreshing cool air needed in the summer or the warm comfort during the harsh Montréal winters. As anyone living in the area knows, a reliable heat pump is crucial for maintaining a comfortable home year-round. The issue had persisted for weeks, and our client, frustrated with ineffective heating and cooling, finally reached out to AirGreen.
Initial Assessment: Where’s the Problem?
Upon arriving, we started with a comprehensive diagnostic check. We inspected the entire system, meticulously checking for any issues that could be causing the poor performance. Our trained technicians noted that the refrigerant pressure was unusually low—a telltale sign that there might be a Freon leak somewhere in the system. But we couldn’t jump to conclusions. The next step was to locate and verify the source of the problem.
Finding the Leak: The Detective Work
Detecting a refrigerant leak is no simple task. Using specialized tools, our team traced the system’s components, keeping a keen eye out for any anomalies. Finally, we found the culprit: a small, sneaky leak had developed in the heat pump's piping, slowly seeping out Freon and rendering the unit ineffective. With the mystery solved, it was time for action.
Repair Work: Sealing the Deal
To rectify the issue, we:
- Sealed the leak meticulously to prevent any future Freon loss.
- Conducted a pressure test to ensure that the system could hold the refrigerant without further leakage.
- Carefully added the necessary Freon, restoring the system to optimal performance.
Bringing It Back to Life: The Freon Recharge
With the leak sealed, it was time for the Freon recharge. This part of the process required precision and expertise, as the correct amount of refrigerant is crucial for efficiency. Too little or too much could lead to a host of other problems. Our technicians carefully filled the system, ensuring that the refrigerant levels were just right. The result? The heat pump roared back to life, delivering cool and consistent air once again.
Why Freon Matters: The Science Behind the Comfort
Freon, or refrigerant, is the unsung hero of any heat pump system. It’s responsible for absorbing and releasing heat, making your home feel just right, whether it’s freezing cold or sweltering hot outside. If there’s not enough Freon, the heat pump has to work much harder, leading to inefficiency, higher energy bills, and wear and tear on components. That’s why it’s vital to address any leaks immediately.
The Final Test: Performance Check
Once the repairs were complete, we ran the system through several cycles to ensure it was operating at peak performance. We measured temperature differentials, airflow strength, and even the noise level. The results were fantastic: the unit now heated and cooled like a brand-new machine. Our client was overjoyed, and we were proud to add another successful repair to our portfolio.
Customer Satisfaction: Another Happy Homeowner
Our customer’s reaction? Pure relief and joy. They had been contemplating an expensive replacement, but our skilled repair saved them a substantial amount of money and stress. This story serves as a reminder that timely maintenance and expert intervention can significantly extend the lifespan of your HVAC system.
Preventive Tips for Homeowners
Want to keep your heat pump running efficiently? Here are some tips:
- Regular Maintenance: Schedule annual tune-ups to keep the system in top shape.
- Filter Changes: Replace or clean the filters every 1-3 months to maintain optimal airflow.
- Check for Ice Build-Up: If you see ice on the outdoor unit, call a professional immediately.
- Listen for Strange Noises: Unusual sounds could indicate a serious issue needing immediate attention.
Why Choose AirGreen?
When you choose AirGreen, you’re opting for:
- Decades of experience in diagnosing and repairing HVAC issues.
- A team that uses the latest technology and techniques to get your system running smoothly.
- Unmatched customer service, ensuring that every project ends with a happy client.
Our repair stories, like this one in Côte-des-Neiges, showcase our dedication to providing reliable, efficient, and high-quality service. We understand the importance of a properly functioning heat pump in the ever-changing Montréal climate and are here to keep your home comfortable.
A Note on Environmental Responsibility
It’s worth mentioning that while Freon has been essential to HVAC systems, it’s also been linked to environmental concerns. As responsible HVAC professionals, we stay up-to-date on regulations and ensure our work minimizes environmental impact. We use environmentally friendly refrigerants when possible and encourage clients to consider greener options when upgrading their systems.
Conclusion: Your Comfort, Our Priority
At AirGreen, we don’t just fix machines; we restore comfort. Our skilled technicians are committed to delivering results that keep you satisfied and your HVAC system running efficiently. Whether it’s a minor repair or a major overhaul, we have the expertise and passion to get the job done right.
If your heat pump isn’t working as it should, don’t wait. Contact AirGreen for a consultation and experience the difference our dedicated service can make!
How it goes, from the first call to the end
The main steps of this kind of job at AirGreen. Every house has its quirks: the estimate brings them out.
The symptoms, since when, the model (on the unit's label) and the error code if there is one.
We look for the cause, not just the symptom: readings, components, installation.
Repair, part to order or replacement, depending on the failure. We explain what we found.
The repair is done and parts replaced as needed.
The unit is restarted and checked in its operating modes.
What caused the failure and what can keep it from coming back.
- Your callThe symptoms, since when, the model (on the unit's label) and the error code if there is one.
- On-site diagnosisWe look for the cause, not just the symptom: readings, components, installation.
- The optionsRepair, part to order or replacement, depending on the failure. We explain what we found.
- The workThe repair is done and parts replaced as needed.
- TestsThe unit is restarted and checked in its operating modes.
- AdviceWhat caused the failure and what can keep it from coming back.
What to do, season by season
Three habits per season for this unit. They take a few minutes and prevent many calls.
- Clean the indoor unit's filters.
- Clear leaves and debris left on the outdoor unit by winter.
- Test cooling before the first hot days.
- Clean the filters more often when the unit runs a lot.
- Keep plants away from the outdoor unit.
- Check that no water drips from the indoor unit.
- Rake the leaves around the outdoor unit.
- Test heating before the first cold days.
- Book periodic maintenance before winter.
- Keep snow away from the stand and the front of the unit.
- Let the unit defrost: it is normal.
- Never hit the ice on the fins; call us if the unit stays iced up.
Which type of equipment for your project?
Pick what looks like your need.
What people ask us about this kind of work
What should I have ready before calling?
Repair or replace?
Does a wall-mounted heat pump heat in winter?
Wall-mounted or multi-zone: how do I choose?
Where does the outdoor unit go?
Are there grants?
Do I need a permit?
Does AirGreen hold the required licences?
Is the estimate free?
No question matches. Write to us: we answer.
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Text and photo: a real AirGreen Climatisation & Chauffage job. The diagrams are generic illustrations of the type of installation, not a survey of this job site. Sources of the added figures: airgreen.ca product pages (NEEP / AHRI performance), Hydro-Québec (Heat pumps page, LogisVert, read on 13 October 2026), Régie de l’énergie (rate D as of 1 April 2026).
