An Essential HVAC Intervention That Protected a Family’s Health in Blainville
In the world of residential HVAC, some interventions go far beyond just thermal comfort: they become essential for the health of the occupants. That’s exactly what we witnessed recently during an emergency service call in Blainville, on the North Shore of Montréal, where a family struggling with chronic allergies and mold issues saw their quality of life completely transformed thanks to our air duct cleaning service.
Ongoing Symptoms and Stale Indoor Air: A Warning Sign That Was Overlooked
For several months, this family noticed a steady increase in allergy symptoms: runny noses, itchy eyes, nighttime coughing, and difficulty breathing. Their asthmatic child had multiple visits to the emergency room. No medical treatment brought lasting relief. It was only after seeing a pulmonologist that a connection was made between their respiratory symptoms and the quality of the indoor air in their home.
That’s when they contacted AirGreen to request a full inspection of their air ducts.
Thorough Inspection: Mold, Dust, and Fungus as the Root Cause
As soon as we arrived, we carried out a full camera inspection of the ducts. The result was clear: the ducts were completely packed with fine dust buildup, visible mold spores, and signs of condensation, especially in the main duct supplying the upstairs bedrooms.
This type of buildup is common in homes that have never had a complete duct cleaning since construction. Over time, ducts become a breeding ground for allergens, especially in well-insulated homes where air circulation is limited.
Our Intervention: A Complete Cleaning Process in Line with NADCA Standards
At AirGreen, we follow a strict NADCA-certified HVAC cleaning protocol, aligned with the National Air Duct Cleaners Association’s standards. Here’s how we proceeded:
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Full system depressurization using a high-powered HEPA vacuum connected to the main duct outlet.
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Motorized rotary brushing inside each duct to dislodge accumulated debris.
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Application of a natural fungicidal spray, certified for residential use, to neutralize any mold spores.
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Complete cleaning and disinfection of supply and return vents, HRV unit, and all ductwork.
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Final check using an endoscopic camera to ensure an immaculate result.
The entire intervention took approximately 4 hours, with no major disruption for the family, whom we assisted in preparing and securing the space beforehand.
Immediate Results: Respiratory Relief and Improved Quality of Life
The positive effects were noticeable within just a few days:
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Nearly complete disappearance of allergy symptoms.
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Better sleep, especially for the children.
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Reduced humidity and elimination of the musty odor that had lingered in the ductwork.
We also advised the family on the importance of periodic system maintenance (ideally every 3 to 5 years) and proposed the installation of a central air purifier with a HEPA filter as an additional long-term solution.
Why Duct Cleaning Is Essential—Especially on the North Shore
Across the North Shore of Montréal, including towns like Blainville, Boisbriand, Mirabel, and Sainte-Thérèse, many homes built in the 1990s and 2000s face similar issues: tight insulation, stagnant humidity, and lack of HVAC maintenance. These conditions promote the development of invisible yet harmful mold.
A professional duct cleaning service is therefore not a luxury—it’s a necessity.
What Sets AirGreen Apart in This Type of Intervention
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Technicians certified by NADCA and trained in mold treatment.
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State-of-the-art equipment and dust-free methods.
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Personalized advice to prevent future buildup.
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Rapid intervention across Greater Montréal, including Laval, Longueuil, the North Shore, and the South Shore.
We offer more than just cleaning: we restore your ventilation system’s full efficiency while protecting your family’s health.
Common Mistakes to Avoid
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Thinking a “central” system cleans itself.
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Waiting until symptoms appear before acting.
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Hiring unqualified services that don’t follow NADCA protocols.
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Neglecting the HRV unit (heat recovery ventilator), which is often the source of mold buildup.
Practical Advice for Homeowners
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Have your ducts inspected every 3 to 5 years, especially if you suffer from allergies or have a tightly sealed central HVAC system.
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Clean vent grilles monthly.
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Watch for signs of excessive humidity: condensation on windows, musty smells from vents.
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Always hire qualified professionals: poor cleaning can make the situation worse.
Conclusion: A Service That Can Truly Change Lives
At AirGreen, we believe that HVAC maintenance is a pillar of residential health. Thanks to our expertise, this Blainville family was able to breathe easily again, improve their quality of life, and avoid unnecessary medical expenses. This kind of intervention proves that our air duct cleaning services can literally turn a toxic environment into a safe and healthy home.
Do you live on the North Shore or elsewhere in Greater Montréal? Experiencing unexplained symptoms or suspect mold in your ducts? Contact us today for a professional inspection.
