Les fausses économies : ce que vous risquez en reportant le nettoyage de votre climatisation
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False savings: what you risk by postponing your air conditioning cleaning

The illusion of savings that ends up costing more: why servicing your air conditioning system is essential

At AirGreen, we often notice a recurring mistake among homeowners with wall-mounted and central air conditioning systems: postponing their HVAC cleaning thinking they’re saving money. In reality, this decision can lead to much higher costs—financially, in terms of comfort, and even in terms of health.

In the Greater Montréal Area, including Montréal, Laval, Longueuil, the North Shore, and the South Shore, where air conditioning systems are indispensable for several months a year, regular maintenance of your heating, ventilation, and air conditioning (HVAC) systems is not optional—it's a necessity.

A dirty air conditioner is an inefficient air conditioner

The buildup of dust, pollen, mold, and debris in filters and coils can reduce your unit’s efficiency by up to 30%. A clogged system must work much harder to maintain your desired temperature, which results in:

  • Increased energy consumption, and therefore higher electricity bills;

  • Reduced comfort, especially with uneven air distribution;

  • Premature wear and tear on parts, leading to breakdowns or early replacements.

Health risks: polluted indoor air

We spend on average 80 to 90% of our time indoors, especially during heatwaves or Montréal's harsh winters. A dirty air conditioner quickly becomes a breeding ground for contaminants:

  • Growth of bacteria, mold spores, and allergens;

  • Worsening of asthma and respiratory issues;

  • Persistent bad odors in your home or business.

At AirGreen, our technicians have often encountered units where visible mold had formed inside evaporator coils and drain pans—directly compromising the indoor air quality.

Real case: Service call in Longueuil for a wall-mounted Gree air conditioner

We recently responded to a service call in Longueuil for an 18,000 BTU Gree wall-mounted air conditioner that had been running for three years without a cleaning. The customer reported noise, bad smells, and poor cooling performance.

Upon disassembly, we discovered a thick black layer of dust completely covering the evaporator coil. The drainage pan was partially clogged, beginning to leak. After a full professional cleaning using biodegradable products and high-pressure rinsing, the unit regained its original performance. The result: immediate comfort improvement and an 18% drop in the electricity bill the following month.

False savings: what you’re really risking

By postponing a simple annual maintenance, you expose yourself to:

  • High repair costs: burned motors, blocked fans, damaged circuit boards;

  • Premature replacement of units that can cost thousands of dollars;

  • Voided manufacturer warranties, which often require regular servicing;

  • Ineligibility for certain energy subsidy programs or insurance benefits;

  • Decreased property value, especially if your HVAC system shows signs of wear or neglect.

Annual maintenance: a smart investment

At AirGreen, we offer a complete cleaning service for wall-mounted and central air conditioning systems, designed to extend the life of your equipment and guarantee maximum efficiency. Our service includes:

  • Complete disassembly of the indoor unit;

  • Deep cleaning of coils, filters, drain pans, and fans with non-toxic products;

  • Pressure and electrical connection checks, airflow temperature readings;

  • Drain line inspection and leak detection;

  • Clear technical report with personalized recommendations.

This service is recommended at least once a year, ideally in spring or fall, to prepare your system for heavy-use seasons.

Commercial example: Preventive HVAC maintenance in Laval

In a small office building in Laval, we carried out preventive maintenance on a central system featuring a 5-ton Bosch BOVA heat pump. The unit, although fairly new, was already showing signs of clogging. Without intervention, the compressor was at serious risk of overheating.

Thanks to our service, the system regained optimal performance. The building manager has since entrusted us with annual preventive maintenance for all of their HVAC systems, now fully aware of the return on investment proper maintenance brings.

What you can do right now

To avoid finding yourself in an expensive or uncomfortable situation, follow these simple tips:

  • Schedule a professional cleaning at least once per year, ideally with AirGreen;

  • Don’t rely solely on removable filters: deep cleaning is essential;

  • Watch for warning signs: unusual noise, unpleasant odors, reduced performance, excessive humidity;

  • Avoid DIY or household cleaning products: they may damage the system.

Why choose AirGreen for your air conditioning maintenance in Montréal and surrounding areas

  • Proven expertise in the HVAC field for over 10 years;

  • Certified technicians, punctual, professional, and trained on all major brands (Gree, Fujitsu, Sharp, Tosot, Bosch, Lennox, etc.);

  • Fast service across the Greater Montréal Area, including Montréal, Laval, Longueuil, the North Shore and the South Shore;

  • Personalized service, tailored to your system type and energy needs;

  • Access to advantageous annual packages including cleaning, inspections, and priority response in case of breakdown.


Don’t let your air conditioner become your worst enemy

Air conditioner cleaning isn’t a luxury—it’s essential maintenance. At AirGreen, we believe your unit’s performance depends on regular attention, proper servicing, and professional support.

Don’t let false savings cost you your comfort, your health, or your budget. Contact us today to schedule your maintenance service with AirGreen.

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