Serving Montreal and surrounding areas — Wall-mounted AC units (mini-split systems, or climatisateurs muraux in Quebec) are compact powerhouses that keep your home cool and comfortable. But when dust and grime build up on the filters, coils, and blower wheel, your system works harder, uses more electricity, and can circulate musty odors and mold spores throughout your rooms.

The bottom line: a properly cleaned mini-split can use up to 30% less energy than a dirty one while helping you breathe healthier, fresher air.

Why cleaning your wall-mounted AC matters

1) Energy efficiency & performance

Dust on the indoor unit’s return screen and fine filters restricts airflow. Dirt on the evaporator coils acts like a blanket, reducing heat transfer. The result is longer run times, higher electricity bills, and uneven cooling. Cleaning restores free airflow and coil efficiency, helping your unit hit the set temperature faster and cycle off sooner.

2) Healthier indoor air

The dark, damp interior of a mini-split can foster mold and mildew. When the fan turns on, those spores and a stale, “basement-like” smell may blow into your living spaces. Thorough cleaning and sanitizing removes the source of odors and reduces allergens, improving comfort for allergy and asthma sufferers.

3) Reliability & lifespan

Dirty parts force motors and compressors to work harder. Keeping the indoor head and outdoor condenser clean reduces wear, helps prevent breakdowns in the middle of Montreal’s heat waves, and protects your investment.

7 signs your mini-split needs professional cleaning

Why You Should Consider Professional Wall-Mounted AC Cleaning

1. Musty or sour odor when the unit starts.
2. Visible dust, slime, or dark streaks on the louvers or coils.
3. Reduced airflow or hot/cold spots in the room.
4. Higher electricity bills compared to last summer.
5. Noisy operation—whistling, rattling, or fan imbalance.
6. Water drips from the indoor unit or a leaking drain line.
7. Frequent cycling or failure to reach your set temperature.

What’s included in a professional wall-mounted AC cleaning

At Ultra Air Inc., we specialize in deep cleaning for wall units (service de nettoyage pour climatiseurs muraux). Our visit typically includes:

• Inspection & testing: Check temperature drop, fan speed, drain function.
• Protective setup: Cover walls/floor and install a cleaning catch bag.
• Filter service: Wash/replacement of screens and fine filters.
• Coil & blower cleaning: Apply coil-safe cleaner, brush, and rinse to remove biofilm; clean the blower wheel and housing where dust and microbial growth often hide.
• Drain flush: Clear the condensate line to prevent leaks and odors.
• Optional antimicrobial treatment: Helps inhibit new growth on clean surfaces.
• Outdoor unit rinse: Clean condenser fins (no high pressure that can bend fins).
• Final test: Verify performance, quiet operation, and odor-free airflow.

Why it matters: this level of cleaning reaches the parts DIY methods miss, especially the blower wheel and inner shroud where mold often starts.

How often should Montreal homeowners clean a mini-split?

• Annually for typical homes (best done before peak summer).
• Every 6–9 months if you have pets, smokers, open-kitchen cooking, or high dust.
• After renovations (drywall dust and sawdust clog coils fast).
• If you notice odors or leaks—book a cleaning right away.

Simple maintenance you can do between professional visits

• Rinse reusable filters every 4–6 weeks in summer. Let them fully dry before reinstalling.
• Keep 2–3 feet of clearance around the outdoor unit; trim plants and clear debris.
• Wipe the front panel and louvers with a slightly damp cloth—no harsh chemicals.
• Use “Dry” or “Fan” mode for 15 minutes after heavy cooling to reduce moisture inside the indoor unit.
• Avoid bleach, pressure washers, or coil-damaging sprays on the indoor head.

Why choose Ultra Air Inc. for wall-mounted AC cleaning in Montreal

Many HVAC companies focus on installs and repairs; we also prioritize specialized cleaning for wall units. With trained technicians, careful protective setup, and coil-safe methods, we deliver:

• Up to 30% energy savings versus a dirty unit (by restoring airflow and heat-exchange).
• Healthier, fresher indoor air—goodbye musty smells.
• Transparent service—photos and a performance check before and after.
• Local expertise—serving Montreal, Laval, South Shore, and West Island.

Stay cool, breathe clean, and spend less this summer with a professional mini-split cleaning from Ultra Air Inc.

Ready to breathe easier?

Book a visit with Ultra Air Inc.’s mini-split specialists today:

• Mural Wall Mount AC Cleaning

• Contact Us (questions, quotes, scheduling)

Frequently asked questions (FAQ)

How long does a cleaning take?
Most single-zone wall units take 60–90 minutes. Add time for multi-zone systems or heavy buildup.

Will cleaning remove musty odors?
Yes—odors usually come from microbial growth on coils and the blower wheel. A deep clean and drain flush typically eliminates smells.

Do you service all brands?
We clean most major brands of wall-mounted mini-splits installed in Montreal homes.

Is cleaning worth it if my unit is cooling fine?
Yes. Preventive cleaning keeps energy use low, helps avoid leaks and breakdowns, and protects your warranty and indoor air quality.

How much does it cost?
Pricing depends on the number of indoor heads, accessibility, and buildup. Contact Ultra Air Inc. for a fast, no-pressure quote.

Call to action

Ready for lower bills and fresher air? Book your wall-mounted AC cleaning with Ultra Air Inc. today. We’ll get your climatiseur mural running like new—just in time for Montreal’s hot summer days.

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