Professional Cleaning and Maintenance of Mini Split / Wall-Mounted Heat Pumps in Montréal
Experience the benefits of professional heat pump cleaning in Montréal. AirGreen ensures your mini split operates efficiently, providing consistent comfort all year round
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.
Why Regular Cleaning and Maintenance of Mini Split Heat Pumps Are Essential for Optimal Performance
Ensuring the efficient operation of your mini split or wall-mounted heat pump isn't just about keeping the unit clean; it’s about maximizing its lifespan, performance, and energy efficiency. Recently, we, at AirGreen, were called to a home in Montréal to perform a comprehensive cleaning and maintenance service on a wall-mounted heat pump. This task wasn’t just another job for us; it was an opportunity to show how meticulous care and professional cleaning can make a significant difference in the performance of your heat pump system.
The Challenge: A Heat Pump in Need of Professional Attention
Our customer had noticed that their wall-mounted heat pump wasn’t performing as efficiently as it once did. They had been using this unit to provide both heating and cooling year-round, and over time, dust, grime, and dirt had accumulated on the coils and filters, affecting airflow and overall performance. The indoor unit was no longer delivering the kind of comfort they were accustomed to, and it was time for a thorough cleaning.
The Cleaning Process: Going Beyond Just Dusting
At AirGreen, we understand that simply wiping down the exterior of your heat pump isn’t enough. Proper maintenance requires deep cleaning that reaches every part of the system, from the coils to the drainage system. For this particular job in Montréal, we took the following steps:
1. Protecting the Surrounding Area
We began by covering the surrounding area with protective sheets to ensure that no dirt, water, or cleaning agents would spill onto the walls, floor, or furniture. This attention to detail is crucial, as it demonstrates our commitment to delivering a clean, hassle-free service.
2. Removing and Cleaning the Filters
The filters were carefully removed and washed thoroughly. Over time, these filters can become clogged with dust and allergens, which not only affects air quality but also reduces the unit's efficiency. After cleaning, the filters were left to dry while we continued with the rest of the process.
3. Deep Cleaning the Evaporator Coils
One of the most critical components of any heat pump system is the evaporator coil. Dust and debris can accumulate on these coils, reducing their ability to absorb heat effectively. We used a specialized coil cleaner to dissolve the grime and restore the coils to their original state. This step is essential in ensuring that the unit operates efficiently, providing consistent heating or cooling as needed.
4. Flushing the Drain Pan and Drain Line
Another common issue with wall-mounted heat pumps is the buildup of mold and algae in the drain pan and drain line. This can lead to unpleasant odors, water leaks, and even damage to the unit if left untreated. We carefully flushed out the drain pan and line, ensuring that any blockages were removed, and the system could drain effectively.
5. Checking and Cleaning the Blower Wheel
The blower wheel plays a crucial role in circulating air throughout your home. Dust and debris can accumulate on the blades, reducing airflow and causing the motor to work harder than necessary. We removed and cleaned the blower wheel, ensuring that it was free of obstructions and able to operate efficiently.
Final Inspection and Performance Testing
After completing the cleaning process, we reassembled the unit and conducted a thorough performance test. The results were impressive – the heat pump was once again delivering efficient heating and cooling, and our customer could immediately feel the difference in air quality and comfort.
The Benefits of Regular Heat Pump Maintenance
It’s important to note that regular maintenance isn’t just about keeping your heat pump clean – it’s about enhancing its efficiency, longevity, and overall performance. Here’s why you should consider scheduling regular maintenance for your heat pump system:
1. Improved Energy Efficiency
When your heat pump is clean and well-maintained, it doesn’t have to work as hard to heat or cool your home. This translates to lower energy bills and a more environmentally friendly operation.
2. Extended Lifespan
Heat pumps are a significant investment, and regular maintenance can help extend their lifespan, ensuring that you get the most out of your system for many years to come.
3. Enhanced Air Quality
Dust, mold, and allergens can accumulate in your heat pump, affecting the air you breathe. Regular cleaning ensures that your system is circulating clean, healthy air throughout your home.
4. Prevention of Costly Repairs
By addressing potential issues early through regular maintenance, you can avoid the need for costly repairs or even system replacements down the road.
Why Choose AirGreen for Your Heat Pump Cleaning and Maintenance Needs?
We take pride in our work, and it shows. Here’s why AirGreen is the top choice for heat pump cleaning and maintenance in Montréal:
- Experienced Technicians: Our team has years of experience working with all types of heat pumps, ensuring that your system is in good hands.
- Comprehensive Service: We don’t just clean the surface – we provide a deep, thorough cleaning that addresses every component of your system.
- Customer Satisfaction: Our goal is to exceed your expectations with every service. We’re not satisfied until you are!
Tips for Maintaining Your Heat Pump Between Professional Cleanings
While it’s essential to schedule regular professional maintenance, there are a few things you can do to keep your heat pump running smoothly between visits:
- Clean the Filters Monthly: Dust and dirt can accumulate quickly, so be sure to clean your filters regularly to maintain optimal airflow.
- Check the Outdoor Unit: Ensure that the outdoor unit is free of debris, such as leaves, grass, and dirt, which can obstruct airflow.
- Monitor Performance: If you notice any unusual noises, odors, or a decrease in performance, it’s time to call a professional.
Conclusion: A Clean Heat Pump Equals a Comfortable Home
Our recent cleaning and maintenance job in Montréal is a testament to the importance of regular heat pump maintenance. By investing in professional cleaning services, you can ensure that your system operates efficiently, providing you with reliable heating and cooling all year round.
If you’re looking for a professional, reliable HVAC company in Montréal, Laval, Longueuil, North Shore, or South Shore, look no further than AirGreen. We have the experience, knowledge, and dedication to keep your heat pump running smoothly, ensuring your home remains comfortable, no matter the season.
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.
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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?
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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).