Your wall mounted AC works hard every Montreal summer. It pushes cool air through your living room, bedroom, or home office for months on end. But most homeowners forget one thing: that unit needs regular cleaning to keep doing its job well.
A dirty wall mounted AC does not just cool poorly. It can spread dust, pump out musty odours, and raise your hydro bill. Worse, it can trap mould and bacteria inside the unit. The good news? A little care goes a long way, and professional AC cleaning services make the job simple.
This guide breaks down what every Montreal homeowner should know.
A wall mounted AC (also called a ductless mini-split or split-system air conditioner) is a cooling unit installed high on an interior wall. It connects to an outdoor condenser through a small hole in the wall.
Unlike central air systems, wall mounted AC cools one room or zone at a time. That makes it popular in Montreal condos, older homes without ductwork, and basement apartments.
Wall mounted AC units pull air from your room, cool it, and push it back out. Over time, dust, pollen, pet hair, and moisture build up on the filters, coils, and blower fan.
Here is what happens when you skip cleaning:
- Airflow weakens and rooms take longer to cool
- Energy bills climb because the unit works harder
- Allergens and mould spores circulate through your home
- The unit wears down faster, shortening its lifespan
In Montreal, where summers are humid and winters send us indoors for months, indoor air quality matters even more. A clean wall mounted AC helps your family breathe easier year-round.
Watch for these red flags:
- Musty or sour smell when the unit turns on
- Weaker airflow than last season
- Visible dust on the front vents or filters
- Water dripping from the indoor unit
- Clicking or rattling sounds during operation
- Higher electricity bills with no change in usage
If you notice even one of these signs, your unit is overdue for a proper AC cleaning service.
A DIY wipe-down helps, but it only touches the surface. A professional AC cleaning service digs deeper. Here is what a full Nettoyage Imperial service covers in Montreal homes:
- Filter cleaning or replacement: Filters trap dust before it reaches the coils. Technicians remove, wash, and dry them, or swap them for new ones if needed.
- Evaporator coil cleaning: Coils collect grime that blocks heat transfer. A deep clean restores cooling power and efficiency.
- Blower fan cleaning: The fan spins thousands of times a day. Dust builds on the blades and reduces airflow. Cleaning it improves performance and cuts noise.
- Drain line flushing: Clogged drain lines cause water leaks and mould. Flushing clears blockages and protects your walls.
- Outdoor condenser check: The outside unit also collects leaves, pollen, and debris. A full AC cleaning services package often includes this step.
For most Montreal homes, follow this simple schedule:
- Filters: Rinse every 2 to 4 weeks during peak use
- Full professional cleaning: Once a year, ideally in spring
- Heavy use homes (pets, allergies, smokers): Twice a year
Homes near construction zones or busy streets may need more frequent AC cleaning services. Condos with multiple units running at once also benefit from yearly checkups.
You do not need special tools to keep your unit in shape between professional visits from AC cleaning services. Try these simple steps:
- Turn off the unit and unplug it before cleaning
- Pop off the front cover and gently rinse filters under lukewarm water
- Let filters air dry fully before reinstalling
- Wipe the exterior with a soft, damp cloth
- Keep furniture and curtains at least 30 cm away from the unit
- Avoid harsh chemicals or bleach on any part of the AC
Wall mounted AC units are delicate. The coils bend easily, electrical parts can short out, and improper cleaning can void your warranty. A trained technician knows how to dismantle, clean, and reassemble your unit safely.
Professional AC cleaning services in Montreal also use special tools like steam cleaners, coil brushes, and biodegradable solutions. These go far beyond what a vacuum or wet cloth can do. Plus, a trained eye spots small problems, like a worn fan motor or refrigerant leak, before they turn into costly repairs.
How much does a wall mounted AC cleaning service cost in Montreal?
Most single-unit AC cleaning services in Montreal cost between $150 and $300. Multi-zone homes and heavily soiled units cost more.
Can I clean my wall mounted AC myself?
You can handle light maintenance like rinsing filters. Deeper cleaning of coils, fans, and drain lines should be left to a professional AC cleaning service to avoid damage.
How long does a professional AC cleaning service take?
A standard wall mounted AC cleaning takes about 60 to 90 minutes per unit. Larger or dirtier units may take longer.
Does AC cleaning improve indoor air quality?
Yes. A clean unit removes trapped dust, mould, and allergens, which improves the air your family breathes daily.
When is the best time to book AC Cleaning Services in Montreal?
Spring is ideal. It prepares your unit for heavy summer use and avoids the mid-season rush.
- A wall mounted AC is a ductless cooling unit common in Montreal condos and homes without ductwork.
- Annual professional cleaning keeps the unit efficient, quiet, and safe.
- Dirty units raise energy bills, weaken airflow, and harm indoor air quality.
- Watch for musty smells, weak airflow, and water leaks as warning signs.
- Rinse filters every 2 to 4 weeks between professional visits.
- Spring is the best time to book AC cleaning services in Montreal.
- Nettoyage Imperial provides certified wall mounted AC cleaning across Montreal, Laval, and the North and South Shore.
Ready to breathe cleaner, cooler air this summer? Nettoyage Imperial offers expert wall mounted AC cleaning services across Montreal, Laval, and the North and South Shore. Request a free estimate and let our certified team keep your home comfortable all year.