Invisible solutions, yet vital to protect your health and your property
In a residential neighborhood of Montréal, a duplex owner recently contacted AirGreen following a troubling event: a carbon monoxide alarm had gone off in the middle of the night, right after their car was parked in the closed garage. Although the incident was handled without tragic consequences, it revealed a truth that’s too often ignored: the absence of proper garage ventilation can become a deadly hazard.
At AirGreen, we regularly step in to design, install, and maintain garage ventilation systems that meet the highest safety standards, while also ensuring optimal comfort and full compliance with building codes in Montréal, Laval, Longueuil, and across the North Shore and South Shore.
Why is garage ventilation so critical?
Residential and commercial garages, whether attached or underground, are often treated as secondary spaces. Yet, these are precisely where some of the most toxic pollutants for human health accumulate: carbon monoxide (CO), nitrogen dioxide (NO2), fine particles, and volatile organic compounds (VOCs) from exhaust fumes, solvents, and cleaning products.
Without proper mechanical ventilation, these substances build up in the air, sometimes seeping into the living spaces and exposing occupants to serious risks:
-
Acute poisoning, which can lead to unconsciousness, neurological issues, or even death.
-
Chronic health effects, especially for children, seniors, and individuals with asthma.
-
Material degradation, structural corrosion, and persistent odors.
The AirGreen approach: technical expertise and customized solutions
At AirGreen, our job isn’t just to install a basic fan. Every project is treated as a custom solution, tailored to the garage’s usage, volume, layout, and the current building regulations in Québec.
In-depth analysis and diagnosis
We always start with a detailed building analysis: air volume, type of occupancy, usage duration, presence of combustion sources, connection to living areas, etc. Based on this data, we model the required air renewal rate according to the recommendations of the NBC (National Building Code) and the Indoor Air Quality Regulations.
Choosing the right ventilation solution
We offer several types of garage ventilation systems, all selected for their efficiency, reliability, and durability:
-
Constant-flow mechanical ventilation (single flow HRV): ideal for residential garages, this system ensures continuous extraction of polluted air.
-
Controlled mechanical ventilation with CO/NO2 detectors: perfect for collective or underground garages, it automatically adjusts fan speed based on pollutant levels.
-
Hybrid systems with heat recovery: an innovation that ensures proper ventilation while minimizing heat loss during winter.
Professional and discreet installation
Our certified technicians install the ductwork, fans, detectors, and wall controls with millimetric precision, always making sure to minimize the system’s visual and noise impact. Every installation is tested, calibrated, and verified with professional-grade measuring tools to ensure optimal performance from day one.
Real-world examples of our work in Montréal and surrounding areas
In Ville-Marie, we recently installed a ventilation system with carbon monoxide detector in the underground garage of a triplex. The building’s complex layout—with a vertical duct running through two floors—required a precise technical solution. The result: stable air quality and peace of mind for the residents.
In Laval, a rental building reached out to us to replace an outdated system. We chose a low-consumption EC fan paired with smart sensors, which allowed for a 35% reduction in annual energy consumption while maintaining excellent air renewal levels.
On the South Shore, in a new home in Brossard, we integrated a quiet, discreet ventilation system hidden in a suspended ceiling, controlled by a programmable touchscreen panel.
Grants and compliance: what you need to know
Garage ventilation systems may be eligible for municipal or provincial subsidies, especially under energy efficiency or eco-renovation programs. We assist our clients throughout the entire administrative process, including document preparation and validation of technical eligibility.
In addition, a compliant installation increases the resale value of your property, facilitates inspections, and reduces the risk of fines or disputes with insurers.
Practical advice and common mistakes to avoid
-
Never underestimate the need for ventilation, even if you use your garage for just a few minutes a day.
-
Avoid makeshift or DIY systems without automatic sensors in enclosed garages: they’re ineffective and non-compliant.
-
Have your ventilation system serviced every 2 to 3 years to ensure proper operation, especially for CO detectors and motors.
Why choose AirGreen?
Our reputation is built on hundreds of successful ventilation projects in Montréal, Laval, Longueuil, the North Shore, and the South Shore. What sets us apart:
-
Advanced technical mastery of both residential and commercial ventilation systems.
-
Tailor-made solutions, incorporating the latest innovations in air quality and energy efficiency.
-
Reliable and accessible customer service, with fast installation times and ongoing support.
Conclusion: prevention is better than cure
Garage ventilation, too often overlooked, is actually a crucial element of your safety and quality of life. At AirGreen, we put our expertise at your service to transform this space into a healthy, compliant, and sustainably protected zone.
Contact us today for a free analysis of your garage, or to plan a custom ventilation system installation using certified equipment and impeccable service.
