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Chauffage et qualité de l’air : comment un entretien adéquat peut réduire allergies et polluants
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Heating and Air Quality: How Proper Maintenance Can Reduce Allergies and Pollutants

Maintaining Your Heating System for Healthier Indoor Air in Montréal, Laval, Longueuil, North Shore and South Shore

As the cold season sets in across Québec, the heating system becomes the heart of home comfort. But beyond temperature control, another essential factor comes into play: indoor air quality. Too often overlooked, regular maintenance of heating systems plays a critical role in reducing allergens, pollutants, and microorganisms circulating throughout the home. At AirGreen, we’ve seen through hundreds of service calls across Montréal and surrounding areas that well-maintained equipment not only boosts energy performance but also helps protect your family’s health.

Why Heating System Maintenance Is Key to Indoor Air Quality

A heating system — whether it’s a forced-air furnace, a central heat pump, or a wall-mounted convector — works by recycling indoor air. If the system is dirty or poorly maintained, it quickly becomes a source of dust, mold spores, chemical pollutants, and dust mites. These particles can worsen respiratory problems, trigger asthma attacks, or cause allergic reactions, especially in children, the elderly, and people with weakened immune systems.

One of our clients in Longueuil suffered from chronic allergy issues. After a HVAC inspection of their central heating system (a Lennox unit), we discovered a completely saturated filter and air ducts that hadn’t been cleaned in over five years. A full deep cleaning, including the replacement of the HEPA filter, radically improved the situation. In less than 48 hours, their symptoms had significantly subsided.

What Are the Main Pollutants Circulated by a Poorly Maintained Heating System?

Here are the contaminants we frequently find in the HVAC systems we inspect in Montréal, Laval, Longueuil, North Shore, and South Shore:

  • Fine dust and allergens

  • Mold (found in damp or poorly insulated ducts)

  • Pet hair and dander

  • VOCs (Volatile Organic Compounds) from cleaning products

  • Residual tobacco smoke

  • Bacteria and viruses trapped in unchanged filters

The Direct Impact on Occupants’ Health

Several Canadian studies have shown that indoor air quality is often more polluted than outdoor air, particularly in winter when windows remain shut for extended periods. An annual HVAC maintenance, as we recommend at AirGreen, ensures cleaner air and significantly reduces:

  • Asthma attacks

  • Eye, throat, and nasal irritation

  • Skin issues

  • Chronic fatigue caused by poor oxygenation

What Does a Professional HVAC Maintenance Service from AirGreen Include?

At AirGreen, we follow a strict HVAC maintenance protocol with every visit, whether it’s for a wall-mounted Fujitsu heat pump, a central Bosch system, or a Goodman gas furnace. Here are the essential steps:

  1. Comprehensive inspection of the system (motor, exchanger, ducts)

  2. Cleaning of coils (evaporator and condenser)

  3. Disinfection of air ducts

  4. Filter replacement or cleaning

  5. Humidity level check and air quality sensor testing (if applicable)

  6. Energy efficiency performance test

  7. Personalized recommendations for improving indoor air quality

Real Case: Service Call in Laval for a Central Trane Heat Pump

This past February, a family in Laval contacted us for preventive maintenance on their 3-ton Trane system, installed six years earlier. During the service, our technician found a significant build-up of dust in the fan motor and a neglected filter. After a full cleaning, antibacterial treatment, and installation of a permanent electrostatic filter, the family reported fewer allergy symptoms and noticeable improvement in thermal comfort.

Recommended Frequency for Optimal HVAC Maintenance

To maintain optimal indoor air quality, we recommend:

  • One service per year for residential heating systems

  • Two services per year for commercial buildings or homes with pets

  • Filter changes every 3 to 6 months, depending on filter type and usage conditions

Tips for Maintaining Good Air Quality Between Services

  • Ventilate regularly, even in winter, to refresh indoor air

  • Use an air purifier with a HEPA filter in high-humidity rooms

  • Clean vent grilles monthly

  • Avoid chemical cleaning products, opt for natural alternatives

  • Monitor indoor humidity levels (ideally between 40% and 60%)

Why Choose AirGreen for Your Heating System Maintenance?

At AirGreen, we don’t just clean — we optimize, analyze, and protect your HVAC system with certified technicians, advanced diagnostic tools, and a deep understanding of the most common brands: Fujitsu, Gree, Goodman, Bosch, Lennox, Arcoaire, and more.

Our approach is tailored to each installation. We consider:

  • The system’s age

  • The building’s layout

  • The specific needs of the occupants

  • Energy performance goals and available grants

Grants and Incentives Available in Montréal and Surrounding Areas

Did you know that certain provincial energy programs and clean air subsidies can reimburse up to 50% of costs related to improving indoor air quality? Our team can guide you through these programs and help you maximize your return on investment while enhancing your home’s health and comfort.

Conclusion

Proper heating system maintenance isn’t just about energy efficiency. It’s an investment in your health, your comfort, and your family’s well-being. At AirGreen, we’re proud to help residents of Montréal, Laval, Longueuil, the North Shore, and the South Shore breathe cleaner air — every season.

For healthier air, trust AirGreen’s expertise. Contact us today to schedule your heating system maintenance.

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