One Day to Breathe New Life into an HVAC System: A Look Back at a Deep Cleaning Operation by AirGreen
At AirGreen, we know that an old and poorly maintained ventilation system can become an invisible yet powerful source of indoor air contamination. That was exactly the case during our recent service call at a single-family home in Laval, where a couple reached out after noticing an unusual buildup of dust, persistent odors, and allergy symptoms that had been worsening for several months.
After an initial inspection, we discovered that their central ventilation system was more than 20 years old, and had never been professionally deep-cleaned. Our mission: transform this duct network, saturated with debris, into a solution for clean, high-quality air, and do it all in under 24 hours.
Initial Assessment: A System on the Brink
During our on-site evaluation, we identified several major issues:
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An extreme accumulation of fine dust, organic debris, light mold, and even animal dander.
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Partially clogged ducts, severely limiting airflow to certain areas of the home.
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Rusted and clogged air vents.
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A significant drop in energy efficiency, leading to increased power consumption.
We immediately recommended a complete and professional duct cleaning, along with replacing some obsolete components.
Our Professional Approach to HVAC Cleaning in Laval
Our certified team stepped in with high-powered industrial cleaning equipment, including:
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A HEPA negative pressure vacuum to capture dust without secondary contamination.
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A rotary head equipped with soft brushes to dislodge debris from both rigid and flexible ducts.
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A real-time video inspection camera system to view the interior condition of the ducts before, during, and after the job.
Every step of the cleaning was performed with precision:
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Isolating the system to prevent dust from spreading throughout the house during the process.
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Cleaning every air vent using HVAC-safe disinfectants.
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Thorough disinfection of the ducts using a certified antimicrobial agent.
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Replacing the central air filter with a high-performance HEPA model.
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Rebalancing the airflow to ensure even distribution in all rooms.
Immediate and Measurable Results in Just One Day
By the end of the day, the results exceeded the clients’ expectations:
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An immediate improvement in indoor air quality, verified using a PM2.5 fine particle sensor.
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A noticeable reduction in visible dust on surfaces, starting the very next day.
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Odors eliminated and the air felt “lighter” and more pleasant.
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A quiet, smooth, and efficient ventilation system, offering better energy performance.
The couple told us it was the first time in years they felt they were breathing such clean air in their home. That kind of feedback is at the core of our mission.
Why HVAC Maintenance Is Essential—Especially in Montréal, Laval, Longueuil, Rive Nord, and Rive Sud
In the Greater Montréal Area, HVAC systems face many aggravating factors: urban pollution, seasonal pollen, high humidity, intense winter heating, and more. Without regular maintenance, they quickly become inefficient—if not harmful—to your health.
At AirGreen, we recommend:
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A complete HVAC cleaning every 3 to 5 years, depending on your environment and usage.
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Annual checks of filters, vents, and overall system performance.
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Installing HEPA or MERV 13 filters, which are more effective against allergens and fine particles.
AirGreen: HVAC Cleaning Expertise Proven Through Real Projects
This job in Laval is just one example among many. We frequently serve homes in Longueuil, condos in Montréal, houses on the North Shore, and businesses on the South Shore, providing high-end HVAC cleaning services tailored to every unique need.
Our teams are trained to:
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Quickly diagnose issues within ventilation systems.
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Work with discretion, cleanliness, and efficiency.
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Provide detailed before-and-after reports, including photos.
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Advise clients on best practices for air filtration and HVAC maintenance.
Common Mistakes We Regularly Correct
We often see the following mistakes among new clients:
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Partial or DIY cleaning, which fails to remove deep-seated dust.
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Low-quality filters or filters that were never replaced.
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Ducts blocked by post-renovation debris without follow-up cleaning.
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Improperly sized or poorly placed air vents.
With our customized approach, we help homeowners avoid these costly pitfalls while extending the lifespan of their HVAC system.
Conclusion: An AirGreen Solution = Clean Air for the Long Haul
In just one day, AirGreen transformed an old and contaminated ventilation system into a clean, efficient, and health-enhancing air network. Thanks to our recognized HVAC cleaning expertise, we give our clients peace of mind while actively contributing to their daily comfort.
If you live in Montréal, Laval, Longueuil, the North Shore, or the South Shore, and suspect your ventilation system may be clogged, contact us today for a professional assessment.