The cost of cleaning a wall-mounted air conditioner generally ranges from $150 to $300 in Quebec, depending on the unit’s condition, age, and the type of maintenance required. A properly done cleaning improves indoor air quality, increases energy efficiency, and reduces the risk of breakdowns or bad odors.
Average cost of wall-mounted air conditioner cleaning (Quebec / 2025)
| Type of unit | Surface cleaning | Full professional cleaning | Recommended frequency |
| Wall-mounted air conditioner | $60 to $120 | $180 to $250 | Every 3 to 6 years (or once a year depending on use) |
| Wall-mounted heat pump | $80 to $150 | $180 to $350 | 1 to 2 times a year |
| Wall-mounted air conditioner (older model) | $100 to $180 | $200 to $320 | Once a year |
| Heavily clogged system | — | Cost adjusted based on condition | As needed |
Prices may vary depending on the unit’s condition and ease of access.
Why is cleaning a wall-mounted air conditioning system important?
Air conditioning is a real pleasure during the intense heat of the Quebec summer. To make that comfort last, it’s essential to clean your wall-mounted air conditioner or heat pump regularly.
Clean ducts help improve the air quality inside your home and minimize the amount of mold and allergens in it. Dirty or poorly maintained air-conditioning ducts can cause several problems.
To prevent health problems
An itchy nose, a scratchy throat, and watery eyes are all signs that you’re breathing unhealthy air. In fact, without cleaning, many harmful organisms (dust, dust mites, fungi, bacteria, viruses, etc.) get trapped in your air conditioner’s ducts and filters and can pose serious health risks, such as:
- Asthma
- Lung infections
- Respiratory illnesses
- Lung cancer
- etc.
Keeping the air inside your home healthy is even more important if you have children or elderly people at home (more sensitive to respiratory issues). Likewise, if you have pets (dogs, cats, rabbits, birds, etc.), this effect is amplified because their hair and feathers can easily get into your air conditioner.
To avoid air conditioner performance issues
A dirty or poorly maintained air conditioner can cause many operating problems, such as reduced cooling, ice buildup, water leaks, etc., which can in turn create fire hazards due to the presence of flammable debris on electrical components.
To reduce your energy consumption
Neglecting maintenance and cleaning of your wall-mounted air conditioner will cost you more in energy, since more energy will be required to push air through the blockage. That’s why it’s important to maintain your air conditioning system regularly and entrust air duct cleaning to professionals.
When should you have your wall-mounted air conditioner cleaned?
It’s fairly easy to tell when your wall-mounted air conditioner needs cleaning. First, if you’ve neglected cleaning your air conditioner’s filters, there’s a good chance the coil is already dirty. To check it, simply remove your filters and look at the condition of the coil. You can also look at where the air comes out to see whether the fan is dirty.
If your coil or fan is dirty, it’s time to clean your wall-mounted air conditioner. As a homeowner, you should make sure to periodically clean the disposable or electrostatic filters located in the indoor unit of your wall-mounted air conditioner or heat pump. As a general rule, disposable filters should be cleaned every two to three months depending on your lifestyle (for example: if you smoke, if you have pets, etc.).
In addition, they should be replaced every six months. The electrostatic filter, on the other hand, should be rinsed with water and air-dried about every two months. Each electrostatic filter can be reused for a period of five to ten years. Finally, the outdoor unit of the air conditioner should be regularly rinsed with a low-pressure sprayer to prevent the buildup of pollen and moss in it. As for the outdoor unit of the heat pump, it requires no maintenance.
How often should you clean an air conditioner?
In addition to periodic maintenance, it’s recommended to have a professional deep cleaning done every 3 to 6 years. It’s an opportunity for the specialist to check your unit’s airtightness and the condition of each of its components.
First, the technician checks that the air conditioner is working properly and that the unit isn’t causing filtration issues or other problems. Then, they remove the air conditioner casing to access the coil, which is the part to be cleaned. They then install devices to collect the dirt inside the unit to prevent splashes on the walls and floor. Once all these steps are complete, the specialist cleans the coil using a chemical product specifically designed for cleaning refrigeration coils.
This solution must be antibacterial to prevent mold and bacteria from forming in the future. They also remove any traces of pet hair and dust inside the air conditioner and its ducts. Finally, the technician rinses the unit with water to remove excess buildup on the coil fins. This cleaning helps avoid high costs for major repairs and maintains excellent air quality.
How much does residential air conditioner cleaning cost?
Maintaining your air conditioning unit will cost you much less than repairing it in case of a breakdown. That’s why it’s important to carry out maintenance and cleaning properly and stick to the recommended frequency. For a full cleaning of your wall-mounted air conditioner every three to six years, expect to pay between $180 and $250.
Residential air conditioner cleaning services
Your air conditioner’s proper operation depends on maintenance. In addition to preventing breakdowns, proper maintenance of your air conditioner can help you save energy and keep the air in your home healthier. However, it’s not an easy task. That’s why it’s recommended to hire a company that specializes in residential air conditioner cleaning.
Nettoyage Service Plus specializes in wall-mounted air conditioner cleaning. Our team offers personalized, fast, and efficient service to meet all your needs. We use the best products and the latest technologies available on the market to meet your expectations.
