The quality of the air we breathe inside our homes, apartments, or workplaces is often overlooked, yet it has a direct impact on our health, well-being, and even our daily performance. In Québec, recent studies have shown that indoor air can be up to five times more polluted than outdoor air — a statistic that’s as frightening as it is invisible. At AirGreen, we work every day across Montréal, Laval, Longueuil, as well as the North Shore and the South Shore, to reverse this trend through our specialized HVAC cleaning services (heating, ventilation and air conditioning).
Why Is Indoor Air So Polluted in Québec?
Indoor air is confined, stagnant, and prone to the buildup of invisible pollutants: fine dust, mold, pet dander, spores, cleaning product residues, pollen, bacteria, volatile organic compounds (VOCs), and more. In the winter, the issue gets worse because our homes are sealed tight against the cold. In the summer, heavy use of clogged air conditioning systems can continuously recirculate allergens and harmful particles.
We’ve seen ventilation systems in Montréal completely blocked by mold, and wall-mounted heat pumps on the South Shore where dirty filters were reducing the system’s efficiency by 40%.
The Role of the HVAC System in This Silent Pollution
A poorly maintained HVAC system becomes a real source of indoor pollution. Ducts, coils, filters, and wall units become nests for contaminants. The danger? The air you breathe is constantly recycled through a dirty system, worsening respiratory issues, causing chronic headaches, and lowering overall quality of life.
At AirGreen, we recently responded to a call in Laval at a daycare where children were experiencing skin irritation and chronic allergies. After a complete cleaning of the central ventilation system, symptoms decreased within the following week. This kind of situation, unfortunately common, shows just how important maintenance really is.
What an HVAC Cleaning Can Really Change
1. Immediate improvement in indoor air quality
Our cleaning services for ducts, wall-mounted heat pumps, and central systems eliminate up to 99% of contaminants built up in the system. You’ll feel the air is fresher, lighter, with no lingering smells.
2. Significant reduction of allergy and respiratory symptoms
Our clients from Montréal and Longueuil report fewer asthma attacks, less rhinitis, and fewer headaches after our interventions.
3. Optimized performance of the HVAC system
A clean system uses less energy, heats or cools more efficiently, and lasts longer. In short, you breathe better and you save money.
4. Prevention of breakdowns and overheating
During an intervention on the North Shore, a clogged Gree wall-mounted air conditioner was on the verge of a major breakdown. A preventive cleaning helped avoid costly replacement.
What Happens During an HVAC Cleaning with AirGreen?
We follow a detailed, step-by-step process, carefully documented throughout:
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Initial inspection with cameras inside ducts and on wall units.
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Disassembly of wall or central units to access internal components.
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High-pressure or steam cleaning of coils, filters, blowers, condensate pans, and motors.
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Full disinfection using approved and safe products.
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Reassembly and performance testing at the end of the service.
Real-World AirGreen Project Examples
Residential Project – Montréal, Plateau-Mont-Royal
We were called to a duplex for a persistent bad odor. Upon inspection, we found mold buildup in a Sharp ZU1 wall-mounted heat pump (12,000 BTU). After a thorough cleaning, the homeowner immediately noticed an improvement in air quality, and his daughter’s allergy symptoms disappeared.
Commercial Project – Longueuil, Veterinary Clinic
A clinic contacted us urgently about odors and a “stuffy” air feeling. After a complete cleaning and disinfection of the ventilation system, the staff reported a major improvement in comfort and a drop in client complaints.
HVAC Cleaning: How Often Should It Be Done?
We recommend the following cleaning intervals:
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Wall-mounted heat pumps: every 12 months.
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Central forced-air systems: every 2 to 3 years depending on usage.
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Ventilation ducts: every 3 to 5 years, more frequently in commercial settings.
Having a regular maintenance schedule is an investment in your health and in the longevity of your HVAC equipment.
Available Financial Assistance
Although HVAC cleaning isn’t directly covered by grants such as Hydro-Québec’s LogisVert program, it still helps improve your system’s overall energy efficiency. Plus, cleaning prior to installing a new unit optimizes the performance of the new system.
Why Choose AirGreen for Your HVAC Cleaning Services?
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Proven expertise with thousands of interventions in and around Montréal.
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Certified technicians, punctual, and respectful of your space.
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Cutting-edge professional equipment, suitable for all types of systems.
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Personalized follow-up with a complete cleaning report and recommendations.
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Service available throughout Greater Montréal, including the North Shore and South Shore.
Practical Tips to Keep Your Air Clean Between Cleanings
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Clean your wall-mounted heat pump filters every month.
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Open your windows for 10–15 minutes a day, even in winter.
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Avoid overly scented or harsh chemical cleaning products.
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Monitor indoor humidity (ideally between 35% and 50%).
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Use a certified HEPA air purifier in sensitive areas.
Conclusion
Indoor air quality isn’t a luxury — it’s a necessity. A professional HVAC cleaning by experts like AirGreen can reduce health risks, improve your comfort, and extend the life of your HVAC equipment. In Québec, where we spend up to 90% of our time indoors, breathing clean air should be a top priority.
Contact us today for a free evaluation of your indoor air quality and benefit from our expertise in complete HVAC cleaning services across Montréal, Laval, Longueuil, the North Shore, and the South Shore.