One winter morning in Laval, a strange smell began to spread through a residential family home in the Chomedey neighborhood. Initially thinking it was just a cooking issue, the parents brushed it off... until their children started coughing regularly. That’s when they decided to contact AirGreen, specialists in air duct cleaning and HVAC installations in Laval and Greater Montréal. That decision likely changed the course of their winter — and their health.
A House, Worrying Symptoms… an Invisible Problem
The story begins in a single-family home built in the 1990s. Well-maintained on the surface, it was hiding a sneaky issue. For several weeks, the family members had been suffering from frequent headaches, eye and throat irritation, and ongoing respiratory discomfort, especially at night.
These signs are often linked to poor indoor air quality, but it's hard to diagnose without a trained eye. After seeing our AirGreen trucks in the neighborhood, the family reached out to us for a preventive inspection.
Thorough Inspection: Uncovering the Problem
At AirGreen, every service starts with a complete diagnostic. Our technicians promptly visited the site with air quality measurement tools and specialized cameras to inspect the inside of the ventilation ducts.
The result: widespread mold inside the main ducts, especially in the areas located in the most humid parts of the basement. Inadequate ventilation, combined with years of dust and debris buildup, had allowed spores to flourish.
Without fast intervention, this type of contamination can not only worsen respiratory symptoms but also cause structural damage to the ventilation system itself.
Steps of Our Professional Intervention
We immediately recommended a complete air duct cleaning service along with antibacterial and antifungal disinfection. Here’s how the intervention was carried out:
-
Isolation and protection of rooms: Before starting, we protected all sensitive areas using plastic barriers and temporary HEPA filters to avoid cross-contamination.
-
Mechanical cleaning with rotating brushes: Using a robotic system, we brushed the inside of every duct to remove dust buildup, debris, and spores.
-
Industrial-grade vacuuming: Our negative pressure equipment ensured safe extraction of all particles into our mobile filtered units.
-
Certified eco-friendly disinfection: We applied a fungicide approved by Health Canada, safe for children, pets, and HVAC systems.
-
Final inspection via camera: A second inspection confirmed the complete elimination of mold and ensured the ducts were clean and safe.
Immediate Results and a Return to Normal
Just days after the service, the family noticed a clear improvement in indoor air quality. The persistent coughs stopped, headaches vanished, and a fresh feeling spread throughout the home. They told us, “it’s like we’re breathing for the first time in a long time.”
We also recommended the installation of a central HEPA-filter air purifier connected to the existing system, to prevent future issues in the long term.
Why Mold in Ducts Is a Serious Issue
Contaminated air ducts are more common than you might think, especially in Laval, Montréal, Longueuil, the North Shore, and the South Shore, where high humidity is a regular issue for many months of the year.
Several factors encourage mold growth:
-
Lack of regular maintenance
-
Undetected water infiltration
-
Aging HVAC systems with faulty seals
-
No dehumidifiers in the basement
How Can You Avoid This Kind of Situation?
At AirGreen, we recommend a preventive cleaning every 3 to 5 years, with a visual inspection annually, especially if you have children, elderly individuals, or family members with asthma or allergies.
Our duct cleaning services are available for all types of buildings: homes, condos, offices, businesses, and institutions. Our teams are trained, certified, and fully equipped to intervene efficiently without disrupting your comfort.
Testimonials and Similar Cases in Laval and Beyond
This case is not unique. In recent months, we’ve serviced multiple homes in Fabreville, Saint-François, Pont-Viau, and Laval-des-Rapides. In every situation, our ability to quickly diagnose and act precisely allowed our clients to regain control of their indoor environment.
AirGreen: More Than a Service, A Guarantee of Long-Term Comfort
Our team doesn’t just eliminate the problem: we ensure follow-up in the weeks after the service, and we offer personalized recommendations for each building.
Whether you’re in Montréal, Laval, Longueuil, the North Shore, or the South Shore, we respond quickly to any HVAC emergency, whether it’s for duct cleaning, heat pump maintenance, commercial ventilation degreasing, or post-disaster disinfection.
What You Gain With AirGreen
-
Significant improvement in indoor air quality
-
Reduced risk of respiratory illnesses
-
Optimized energy efficiency of your HVAC system
-
Protection of the structure and lifespan of your ducts
-
Fast, discreet, professional, certified, and local service
Conclusion: An Essential Service, Peace of Mind Restored
The intervention at this Laval family’s home perfectly illustrates the importance of preventive and corrective ventilation duct cleaning. By calling us in time, they avoided more serious health issues and protected the value of their home.
At AirGreen, we firmly believe that breathing clean, healthy air at home is not a luxury, but a right.
Suspect mold or poor ventilation in your home or building? Contact us today for a complete inspection.