Creating a healthy home often starts where we least expect it: inside the ventilation ducts. That’s exactly what one Laval family realized after facing recurring respiratory issues with their children and unexplained chronic fatigue among the adults. This recent case, handled by AirGreen, sheds light on the often-overlooked impact of indoor air quality on daily health and well-being.
A seemingly ordinary situation…
When this family from Laval contacted us, they vaguely suspected poor air circulation or an underperforming HVAC system. The symptoms had become too frequent to ignore: nighttime coughing, congestion, morning headaches, and frequent doctor visits for the children. Yet, their central heat pump was still running, and the home looked clean.
The importance of a full technical diagnosis
During our first on-site visit, we carried out a comprehensive inspection of the ventilation system. Using inspection cameras, our team examined the inside of the ducts. The results were crystal clear: a massive buildup of dust, pet dander, invisible mold, and even leftover debris from past renovations.
All of these elements, constantly circulating through the home via the central system, were directly responsible for the deterioration of indoor air quality. In young children or sensitive individuals, this can aggravate or even cause conditions like asthma, allergies, or chronic respiratory infections.
A complete and customized intervention
At AirGreen, we never do a half-cleaning. For this single-family home in Laval, we carried out a multi-step intervention with a clear objective: to restore clean and safe indoor air:
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Deep cleaning of the ventilation ducts using high-powered motorized equipment with rotating brushes.
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Centralized vacuuming under negative pressure with HEPA filters to trap contaminants without redistributing them into the home.
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Disinfection using fogging with a certified antibacterial solution that is non-toxic.
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Post-cleaning airflow efficiency testing to ensure optimized air circulation in every room.
Everything was completed in under 6 hours, with meticulous prep work to protect furniture and surfaces, and careful attention to detail.
Measurable results: before and after the cleaning
Just days after our intervention, the family called us back to share the tangible effects:
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The children stopped coughing at night.
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Morning congestion symptoms disappeared.
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A fresher, lighter air was now noticeable upon entering the home.
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The parents even reported better sleep quality.
We also measured a drop of more than 70% in fine particles (PM2.5) using an indoor air quality sensor, confirming the real impact of the cleaning.
Why these situations are common in Laval and beyond
Homes in Laval, Montréal, Longueuil, the North Shore and South Shore are often built with centralized ventilation systems that run year-round, summer and winter. However, without regular HVAC maintenance, the ducts turn into a real reservoir of contaminants. In this case, the family hadn’t had the ducts cleaned since buying the house—over 10 years ago.
HVAC maintenance recommendations for optimal health
At AirGreen, we strongly recommend homeowners to:
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Schedule a full duct cleaning every 3 to 5 years (or more often if you have pets, children, or sensitive individuals at home).
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Service heating and cooling units (wall-mounted or central heat pumps) twice a year.
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Install a MERV 13 or HEPA filter that’s compatible with your system.
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Evaluate indoor air quality after major renovations or when purchasing a home.
A trusted expertise in Laval and across Greater Montréal
This case is far from isolated. We’ve completed similar interventions in Laval-des-Rapides, Chomedey, Fabreville, Duvernay, as well as in residential neighborhoods in Montréal-Nord, Longueuil, and Brossard. Each time, clients are surprised by the difference they feel after the intervention.
Thanks to our professional-grade equipment, certified technicians, and personalized approach, we’ve become a go-to provider for HVAC duct cleaning in the Greater Montréal area.
AirGreen, your ally for cleaner, healthier air
We understand how crucial clean air is to your family’s comfort and health. That’s why every AirGreen intervention is guided by one mission: to guarantee optimal indoor air quality that lasts.
By choosing AirGreen, you benefit from:
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Experienced and certified technicians.
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Before/after photo reports of the inside of your ducts.
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Certified, family-safe products.
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Rapid availability across Greater Montréal.
In conclusion
This family from Laval isn’t the only one suffering from the hidden effects of a neglected ventilation system. A professional HVAC duct cleaning can literally transform your indoor environment. At AirGreen, we’re proud to improve quality of life and respiratory health for our clients—one home at a time.
Feeling similar symptoms at home? It may be time to have your ducts inspected.