Job sheet · Maintenance

Expert Cleaning and Maintenance of Wall-Mounted Heat Pump on the North Shore

Our detailed cleaning and maintenance service transformed a North Shore heat pump, restoring efficiency and comfort. Learn how regular cleaning can save you money and improve air quality.

By AirGreen Climatisation & Chauffage Admin6 min read
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Expert Cleaning and Maintenance of Wall-Mounted Heat Pump on the North Shore
Expert Cleaning and Maintenance of Wall-Mounted Heat Pump on the North Shore
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Thorough Cleaning Service that Restores Efficiency and Performance

In the heart of the North Shore, our team at AirGreen recently took on a detailed and challenging cleaning and maintenance job for a wall-mounted heat pump. This wasn't just your average cleaning – it was a transformative process that breathed new life into a hard-working heat pump that had clearly seen some wear and tear over time. With the intricate layers of dust and grime build-up, we knew this task required our best cleaning strategies, high-quality equipment, and years of HVAC expertise.

The Importance of Regular Heat Pump Maintenance

Many homeowners often overlook the importance of maintaining their mini-split or wall-mounted heat pumps, which can lead to reduced efficiency, increased energy bills, and even costly repairs. This particular unit on the North Shore was struggling, evident from its sluggish airflow and diminished performance. Our job was to restore this heat pump's efficiency, ensuring it could deliver optimal heating and cooling while minimizing energy consumption.

Initial Assessment – Identifying the Problem Areas

Upon arriving at the site, our first step was a comprehensive assessment of the unit. We quickly identified that the air filters, blower wheel, and evaporator coils were clogged with dust, dirt, and mold. This accumulation can severely impact the performance of a heat pump, leading to poor air quality and reduced airflow. It was clear that this unit had been neglected for quite some time, but that didn’t deter us – in fact, we thrive on these kinds of challenges.

Signs the Heat Pump Needed Immediate Cleaning:

  • Reduced Airflow: The homeowner noticed that the airflow wasn't as strong as it used to be.
  • Strange Odors: A musty smell was emanating from the unit, indicating possible mold growth.
  • Higher Energy Bills: The unit was working harder to maintain comfortable temperatures, leading to increased energy consumption.

Our Step-by-Step Cleaning Process

1. Disassembly and Inspection

We began by carefully disassembling the unit, taking great care to avoid damaging any delicate parts. Each component was inspected meticulously to ensure no hidden problems were overlooked. We found that the fan blades and evaporator coils were covered in a thick layer of grime, which significantly hampered the unit’s ability to function efficiently.

2. Deep Cleaning the Evaporator Coils

The evaporator coils play a crucial role in the heat pump's ability to transfer heat. When covered in dirt, they can no longer efficiently absorb or release heat, leading to poor performance. Using specialized cleaning solutions, we carefully cleaned the coils, removing all dust, debris, and mold. This step is vital as it directly affects the unit's ability to regulate temperature and humidity.

3. Cleaning the Blower Wheel and Fan Blades

The blower wheel and fan blades are responsible for circulating air throughout your home. When these parts are dirty, they can’t effectively move air, resulting in reduced airflow and uneven heating or cooling. We used high-quality brushes and vacuum equipment to clean these components thoroughly, ensuring they were free of any dust and debris.

4. Sanitizing the Air Filters

Air filters trap dust, pollen, and other particles, preventing them from circulating in your home. However, over time, they can become clogged, restricting airflow and reducing efficiency. We cleaned and sanitized the air filters, ensuring they were as good as new. For homeowners, it’s essential to clean or replace these filters regularly to maintain optimal indoor air quality.

5. Exterior Cleaning and Final Inspection

Finally, we cleaned the exterior of the unit, removing any dirt or grime that had accumulated over time. We performed a thorough inspection to ensure everything was in perfect working order before reassembling the unit.

The Results – A Remarkable Transformation

After our intensive cleaning process, the heat pump was unrecognizable from its former state. The airflow was restored, the strange odors were gone, and the unit was once again operating at peak efficiency. The homeowner was amazed at the transformation and couldn’t believe how much of a difference a deep cleaning made.

Key Benefits of the Cleaning Process:

  • Improved Efficiency: The unit now operates more efficiently, reducing energy consumption and lowering utility bills.
  • Enhanced Air Quality: With clean filters and coils, the air circulating through the home is now free of dust, mold, and allergens.
  • Extended Lifespan: Regular cleaning and maintenance can significantly extend the lifespan of a heat pump, delaying the need for costly replacements.

Why Choose AirGreen for Your Heat Pump Maintenance?

At AirGreen, we pride ourselves on delivering exceptional HVAC cleaning and maintenance services. Our team is experienced, professional, and committed to providing top-notch service to our customers on the North Shore, Montreal, Laval, Longueuil, South Shore, and beyond. We understand the importance of a properly functioning heat pump and go above and beyond to ensure your unit performs at its best.

Here’s Why Our Customers Trust Us:

  • Expert Knowledge: With years of experience in the HVAC industry, we know what it takes to clean and maintain heat pumps effectively.
  • Advanced Cleaning Techniques: We use specialized equipment and cleaning solutions to remove even the most stubborn dirt and grime.
  • Customer-Centric Approach: We take the time to understand our customers' needs, ensuring complete satisfaction with every job.

Tips for Maintaining Your Heat Pump Between Professional Cleanings

While we recommend professional cleaning at least once a year, there are a few things you can do to keep your heat pump in good shape between services:

  • Clean or Replace Filters: Check your filters regularly and clean or replace them as needed.
  • Keep the Outdoor Unit Clear: Make sure there’s no debris or vegetation around your outdoor unit.
  • Schedule Regular Maintenance: Regular check-ups can prevent minor issues from becoming major problems.

Final Thoughts – A Cleaner Heat Pump Means Better Performance

This recent cleaning job on the North Shore is a perfect example of how regular maintenance can make a world of difference. By investing in routine cleaning, you’re not only extending the life of your heat pump but also ensuring that it operates efficiently and provides the comfort you need all year round. Don’t wait until your unit is struggling – let AirGreen take care of your HVAC needs today.

The steps

How the job unfolds

The main steps of this kind of job at AirGreen. Every house has its quirks: the estimate brings them out.

Step 1 of 5The appointment

The type of unit, its age and what you have noticed: noise, smell, water, lower output.

  1. The appointmentThe type of unit, its age and what you have noticed: noise, smell, water, lower output.
  2. InspectionFilters, coils or core, drain, fans, connections and clearances.
  3. CleaningDirty parts are cleaned following the manufacturer's recommendations.
  4. ChecksOperation, water drainage, noise and airflow.
  5. The reportWhat was done, what to watch and when to come back.
The tour

What we check on a job like this one

Each number is a point we check on site. Switch between summer and winter to watch air and heat move.

Generic diagram: wall-mounted heat pump, indoor and outdoor units

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.

  1. 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.

  2. The refrigerant lines, the communication cable and the drain go through the wall in a single opening, sealed against water, cold air and insects.

  3. Two insulated copper pipes connect the two units. Outside, a line cover can protect them from sun, knocks and weather.

  4. A shut-off switch near the outdoor unit isolates it safely for service. It must stay accessible at all times.

  5. The compressor and the fan. In heating mode it captures heat from the outdoor air, even in winter, and moves it inside.

  6. On the ground or on the wall, it keeps the unit above accumulated snow. The unit stays clear and defrost water can drain away.

  7. The fan needs to blow freely. Storage, a fence or a wall too close, and efficiency drops while noise goes up.

Maintenance

Good habits, once the unit is in place

Six simple habits that keep the unit going. Your list stays on this device.

0 / 6 checked
Through the seasons

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.
For your project

The right pages, at the right time

True or false

Four statements: true or false?

It all comes down to details you have just seen.

1. In heating mode, the outdoor unit can produce water.

2. You pick the capacity with a simple square-footage rule.

3. A multi-zone connects several indoor heads to a single condenser.

4. The disconnect can sit behind the patio furniture.

Frequently asked questions

What people ask us about this kind of work

9 questions
How often should maintenance be done?
It depends on the unit and how it is used; the manufacturer gives the frequency. Filters get checked much more often than the full service.
Does maintenance improve performance?
A dirty filter, coil or core cuts airflow and makes the unit work harder. Cleaning them restores the airflow.
Does a wall-mounted heat pump heat in winter?
Yes, it heats and cools. Its capacity drops in very cold weather; the operating range depends on the model and is listed on its spec sheet.
Wall-mounted or multi-zone: how do I choose?
One wall head and one condenser outside: the direct solution for a room or an open area. For two to five rooms, a multi-zone puts one head in each room on a single condenser.
Where does the outdoor unit go?
Where it stays above the snow, clear and accessible, away from walkways. We decide it with you during the estimate.
Are there grants?
Depending on the model and your situation, assistance programs may apply, including Hydro-Québec's LogisVert. AirGreen checks the model number before quoting an amount. See the grants.
Do I need a permit?
Rules vary from city to city: location, distances, noise. See permits and by-laws, and we check for your address.
Does AirGreen hold the required licences?
Yes. AirGreen holds RBQ licence 5645-9605-01, subclasses 15.8 Ventilation, 15.10 Refrigeration and 16 Electricity.
Is the estimate free?
Yes. The on-site estimate is free and the quote follows within 24 hours. Book my free estimate.

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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).

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