An alarming spike in seasonal allergies, combined with poor indoor air quality, raises a crucial question for many residents across Montreal, Laval, Longueuil, North Shore and South Shore: what if your wall-mounted air conditioner or ventilation system is silently contributing to your symptoms? At AirGreen, specialists in HVAC cleaning, we face this issue every day. Through our professional cleaning and maintenance service for air conditioning, ventilation, and heating systems, we help households and businesses breathe cleaner air while extending the lifespan of their equipment.
Why Your Air Conditioner Could Be Making Your Allergies Worse
An air conditioner that isn’t properly maintained becomes a true breeding ground for allergens. Dust, mold, dust mites, and pollen build up in the filters, ducts, and coils. When the unit is running, it distributes these particles throughout the indoor air, worsening allergy symptoms, such as:
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Nasal congestion
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Frequent sneezing
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Eye and throat irritation
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Chronic fatigue
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Asthma attacks
In many of our service calls in Montreal, we’ve found that clogged or neglected systems are often directly linked to recurring health problems among occupants.
Case Study: Full Cleaning of a Wall-Mounted Air Conditioner in Longueuil
A particularly striking example: a client in Longueuil had been suffering from persistent allergies for several months. She suspected her environment but had no idea that her wall-mounted air conditioner, installed five years earlier without any maintenance, was the root of the problem.
During our visit, we observed:
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Filters saturated with dust and pet hair
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Mold growth in the condensate drip tray
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A clogged fan dispersing allergenic particles
After a deep cleaning, including disassembly, antibacterial washing, and full disinfection of the system, the client noticed a significant improvement in her breathing and an immediate reduction in her symptoms.
Which Parts of the Air Conditioner You Should Watch
Air Filters
These filters are the first line of defense against allergens. They should be cleaned or replaced every 2 to 3 months, or more frequently if you have pets or known allergies.
Evaporator and Condenser
The evaporator coil and condenser coil can become ideal environments for mold growth if not cleaned regularly.
Condensate Tray
Stagnant water in the drip tray can lead to unpleasant odors and promote the growth of bacteria and allergenic fungi.
Professional Maintenance vs. DIY Cleaning: What You Need to Know
While you can clean the filters yourself, a complete cleaning of a wall-mounted air conditioner or a central HVAC system requires technical skills, specialized products, and partial disassembly. That’s where our AirGreen team comes in, bringing unmatched efficiency:
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Thorough inspection of each component
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Steam or controlled high-pressure cleaning
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Certified antibacterial and antifungal products
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Tailored recommendations for future maintenance
We respond quickly throughout the Greater Montreal Area, whether you’re in Laval, Longueuil, on the North Shore (Blainville, Terrebonne, etc.) or the South Shore (Brossard, Saint-Hubert, etc.).
How Often Should You Clean Your Air Conditioner?
To prevent your HVAC system from becoming a trigger for your allergies, here are our recommendations:
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Residential wall-mounted air conditioner: once a year, ideally in the spring
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Central heat pump: once a year with full duct inspection
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Ventilation system (HRV/ERV): every 6 to 12 months
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Offices and commercial buildings: 1 to 2 times a year depending on traffic
AirGreen: Your HVAC Cleaning Expert in Montreal
What sets AirGreen apart isn’t just our technical expertise, but our human, thorough, and customized approach for each client. Every service call includes:
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A complete assessment of your indoor air quality
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A detailed report with before/after photos
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Personalized tips to maintain healthy air year-round
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Discreet, clean, fast, and respectful service
The Link Between Health, Energy Efficiency, and Maintenance
A clean air conditioner doesn’t just protect your health: it uses less energy, heats and cools more efficiently, and reduces the risk of breakdowns. It’s a smart investment for both the short and long term.
What Our Clients Are Saying
“I’d been dealing with asthma for months, and no treatment seemed to work. After AirGreen did a full cleaning of my heat pump in Laval, my symptoms finally eased. Their team was incredibly professional.” – Marc A., Laval
“AirGreen cleaned our central system in Brossard. Result: no more bad odors, better air quality, and a noticeable drop in our electricity bill.” – Sophie L., South Shore
What You Can Do Today
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Check the state of your filters
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Schedule a professional maintenance appointment with AirGreen
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Watch out for signs of mold, odors, or dust
Don’t let your air conditioner worsen your health. Preventive maintenance can make all the difference.
Conclusion: Breathe Better, Live Better
With allergies rising across Montreal and longer pollen seasons, regular cleaning of your HVAC system is no longer optional — it’s essential. At AirGreen, we help you reclaim a healthy, comfortable, and energy-efficient indoor environment, whether at home or at work.
Contact us today to schedule a full cleaning and rediscover the comfort of breathing fresh, clean air.