Job sheet · Maintenance

Comprehensive Washing and Maintenance of a Wall-Mounted Heat Pump in Repentigny

See how we transformed a neglected heat pump in Repentigny with our comprehensive cleaning and maintenance service. Happy customer, efficient results!

By AirGreen Climatisation & Chauffage Admin6 min read
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Comprehensive Washing and Maintenance of a Wall-Mounted Heat Pump in Repentigny
Comprehensive Washing and Maintenance of a Wall-Mounted Heat Pump in Repentigny
The full story

The article, chapter by chapter

How Our Team Transformed a Neglected Heat Pump into Peak Condition

In the heart of Repentigny, our HVAC specialists at AirGreen took on a particularly challenging yet fulfilling task: restoring a heavily soiled wall-mounted heat pump to optimal performance. This job was more than just a standard cleaning; it was a full-scale effort to ensure the customer's unit would perform reliably, especially as the demanding seasons approached. Let's dive into the details of this unique maintenance project that left our client ecstatic and the machine looking—and running—like new.

Understanding the Importance of Regular Maintenance

One of the common misconceptions we often encounter in our line of work is that heat pumps don’t require much attention. Yet, regular maintenance is critical for the longevity and efficiency of these units. A neglected heat pump can lead to a cascade of issues, from poor cooling and heating performance to higher energy bills and even complete system failure.

When we arrived on-site in Repentigny, we were greeted by a wall-mounted heat pump that had clearly seen better days. Dust, grime, and accumulated dirt had built up significantly, and the customer had begun to notice a steady decline in the machine’s output. Not only was the heat pump struggling to maintain the desired indoor temperature, but it was also emitting a stale odor—an unmistakable sign that urgent attention was required.

Initial Inspection: Uncovering Hidden Issues

Our initial inspection revealed the full extent of the dirt accumulation. The fan blades, filter, and evaporator coils were all layered in debris. The drainage system was nearly clogged, creating the perfect environment for mold and mildew to thrive. Moreover, the Freon levels appeared to be suboptimal, potentially affecting the unit's ability to cool or heat efficiently.

We explained to our customer that cleaning and servicing this heat pump was vital not only for comfort but also for health, as unmaintained units can circulate allergens and even mold spores throughout the home.

Step-by-Step Breakdown of Our Comprehensive Cleaning Process

We don't just clean; we rejuvenate. Here's what our meticulous cleaning and maintenance process involved:

1. Deep Cleaning of Filters and Interior Components

  • We started by removing the filters and washing them thoroughly. Years of dust and grime were carefully washed away using eco-friendly cleaning agents, ensuring that no harmful chemicals would affect indoor air quality.
  • The interior panels were wiped down and disinfected, eliminating bacteria and mold spores that could potentially cause respiratory issues.

2. Evaporator Coil Cleaning

  • One of the most critical components in any heat pump is the evaporator coil. We used specialized coil cleaner to break down the grime and enhance the unit’s heat transfer efficiency. This step alone can make a noticeable difference in how well the unit operates.

3. Blower Wheel and Fan Blade Scrubbing

  • The blower wheel was coated in thick dust that reduced its efficiency. Our team carefully disassembled and scrubbed it clean, restoring it to its original state. We made sure to balance the blades afterward to prevent any future operational noise.

4. Drainage System Unclogging

  • The drainage system, almost entirely blocked, was cleared and flushed. Proper drainage is crucial to avoid water leakage, which can damage both the heat pump and the surrounding walls.

5. Freon Level Verification and Adjustment

  • Finally, we checked the Freon levels. Low refrigerant not only compromises cooling but also places extra strain on the compressor. We topped it off to the manufacturer’s specifications, ensuring peak efficiency.

Going the Extra Mile: Why AirGreen Stands Out

Unlike many companies that might rush through a job, we take the time to ensure every detail is perfect. Our team prides itself on leaving the workspace cleaner than we found it, and this project was no exception. We ensured that all debris and cleaning materials were disposed of properly and double-checked that the system was functioning flawlessly before wrapping up.

The Customer’s Reaction: A Testimonial of Satisfaction

Our client was delighted. They mentioned how the air quality felt immediately fresher, and the heating/cooling response time was significantly improved. It’s reactions like these that remind us why we love what we do.

The Importance of Professional Maintenance

Maintaining a heat pump isn't just about keeping it clean—it's about ensuring optimal performance and avoiding costly repairs down the road. A well-maintained system can save homeowners up to 25% on energy bills, not to mention the peace of mind that comes with knowing your unit won’t fail during extreme temperatures.

Why Choose AirGreen?

  • Comprehensive Expertise: Our technicians are trained to handle everything from routine maintenance to complex installations.
  • Customer-Centric Service: We listen to your concerns and tailor our service to your specific needs.
  • Eco-Friendly Practices: We use safe and sustainable cleaning agents to protect your home and the environment.
  • Attention to Detail: No corner is left untouched, and we ensure every system we work on is in peak condition.

Tips for Homeowners: Keeping Your Heat Pump in Great Shape

  • Change Filters Regularly: Make it a habit to check your filters every 30 days, especially if you have pets or live in a dusty area.
  • Keep the Outdoor Unit Clear: Ensure the area around the outdoor unit is free from debris, leaves, and obstructions.
  • Schedule Bi-Annual Maintenance: Have professionals like us inspect your unit twice a year to keep it running efficiently.

Final Thoughts

Heat pumps are a significant investment, and regular maintenance ensures you get the most out of your system. Our recent project in Repentigny is a prime example of how a simple cleaning and Freon adjustment can transform a struggling heat pump into a powerhouse of efficiency.

At AirGreen, we’re not just HVAC specialists; we’re your partners in creating a comfortable and healthy indoor environment. We take pride in our work and are always ready to tackle even the dirtiest jobs to ensure our clients are satisfied.

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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