Cleaning and Washing of Wall-Mounted Heat Pump in Outremont, Montreal
See how we transformed a moldy heat pump in Outremont into a pristine, high-functioning unit. Choose AirGreen for impeccable HVAC solutions.

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.
Breathe Easy with a Fresh Start: How Our Expertise Revitalized a Moldy Heat Pump
When it comes to maintaining a comfortable and healthy home environment, the efficiency and cleanliness of your HVAC system are paramount. Recently, AirGreen had the opportunity to showcase our expertise in Outremont, Montreal, where we tackled a particularly challenging yet rewarding task: the cleaning and washing of a wall-mounted heat pump. This project not only restored the unit to its original efficiency but also eradicated a pervasive mold problem that had been affecting the air quality and health of the household.
The Challenge: A Mold-Infested Heat Pump
Upon arrival at the scenic neighborhood of Outremont, our skilled technicians were greeted with a wall-mounted heat pump that had seen better days. Over time, the unit had become a breeding ground for mold, largely due to humidity and lack of regular maintenance. The homeowner had noticed a musty smell wafting through the air, a clear sign that something was amiss with their heating and cooling system.
Our Approach: Meticulous Cleaning Inside and Out
Understanding the urgency of the situation, our team sprang into action with a comprehensive plan to tackle both the interior and exterior components of the heat pump. Here’s how we ensured a thorough cleanse:
- Initial Inspection: We started with a detailed assessment to identify all mold-infested areas.
- Protective Measures: To ensure no spores spread to other parts of the home during cleaning, we sealed off the work area.
- Deep Cleaning: Using eco-friendly and powerful cleaning agents, we meticulously scrubbed every nook and cranny of the heat pump.
- Sanitization: After cleaning, the entire system was sanitized to kill any remaining mold spores, preventing future growth.
- System Check and Test: Post-cleaning, we conducted a full system check to ensure the heat pump operated at peak efficiency.
The Results: Beyond Expectations
The outcome of our intervention was nothing short of remarkable. Not only did we eliminate the mold and its accompanying odor, but the heat pump’s functionality improved, making it operate as if it were brand new. The homeowner was particularly impressed with the level of care and attention to detail our team displayed throughout the process.
Why Choose AirGreen?
At AirGreen, we don’t just service HVAC systems—we ensure they contribute to the health and well-being of our clients. Here’s why our service stands out:
- Expert Technicians: Our team is trained to handle even the most daunting HVAC challenges.
- Eco-Friendly Practices: We use environmentally responsible cleaning agents that are tough on dirt but gentle on the planet.
- Commitment to Customer Satisfaction: We take the time to do the job right, ensuring every client is thrilled with the results.
Final Thoughts
If you’re experiencing issues with your heat pump or simply want to ensure it continues to perform well, don’t hesitate to contact us. At AirGreen, we treat each project with the utmost care and professionalism, ensuring your home remains a sanctuary of comfort and cleanliness.
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 type of unit, its age and what you have noticed: noise, smell, water, lower output.
Filters, coils or core, drain, fans, connections and clearances.
Dirty parts are cleaned following the manufacturer's recommendations.
Operation, water drainage, noise and airflow.
What was done, what to watch and when to come back.
- The appointmentThe type of unit, its age and what you have noticed: noise, smell, water, lower output.
- InspectionFilters, coils or core, drain, fans, connections and clearances.
- CleaningDirty parts are cleaned following the manufacturer's recommendations.
- ChecksOperation, water drainage, noise and airflow.
- The reportWhat was done, what to watch and when to come 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
How often should maintenance be done?
Does maintenance improve performance?
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.
Useful pages for what comes next
More jobs to see, near you
By town, by equipment or by region: browse more than 4,700 published projects.
Each dot: a town where AirGreen has published projects. The glowing dot: this job.
Tell us about your house. We come and see it for free.
The on-site estimate is free and the quote follows within 24 hours.
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).
