Overlooked air quality in Laval: the invisible issue affecting families and buildings
In the Laval area, several residential neighborhoods — from Chomedey and Duvernay to Sainte-Dorothée and Pont-Viau — are now facing a problem that’s too often underestimated: the decline in indoor air quality. This silent crisis, worsened by outdated or nonexistent ventilation systems, directly impacts health, comfort, and the durability of homes. At AirGreen, we work daily to solve this issue at the root: by installing ERVs (energy recovery ventilators) — an effective, durable solution perfectly suited to Québec’s climate.
Indoor air in Laval: between humidity, mold, and invisible contaminants
In many Laval homes, we detect abnormal levels of CO₂, VOCs (volatile organic compounds), excessive relative humidity, and even invisible mold spores. These pollutants are generated by everyday activities (cooking, laundry, showers, breathing) and become trapped indoors, especially in winter when windows stay closed.
A lack of mechanical air renewal worsens this accumulation, causing symptoms among occupants: headaches, fatigue, allergies, respiratory congestion, even asthma. Many of our clients in Laval only realized the seriousness of their situation after months — or even years — of unexplained health issues.
Field testimonial: AirGreen intervention in Sainte-Rose
A couple in Sainte-Rose contacted us after noticing constant condensation on their windows, lingering odors in bedrooms, and their child experiencing nighttime asthma attacks. Our team performed an indoor air quality test, which revealed CO₂ levels exceeding 1400 ppm in several rooms — well above Health Canada’s recommendations.
We installed a Fantech HERO 120H ERV, a compact, HVI-certified unit with low-consumption ECM motors and a heat exchanger that performs even in sub-zero temperatures. With MERV 13 filters and a programmable digital control, the home’s air was constantly renewed without heat loss.
Results after 30 days:
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68% reduction in CO₂ levels
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Significant decrease in odors and humidity
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Elimination of nighttime respiratory symptoms
Why choose an ERV instead of an HRV?
In a city like Laval, where winters are harsh and summers are humid, an ERV (energy recovery ventilator) is often a better choice than an HRV (heat recovery ventilator). In addition to recovering heat in winter, an ERV also balances humidity levels, which is essential in today’s airtight homes.
Advantages of an ERV:
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Heat recovery plus humidity management
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Improved health and comfort
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Lower energy consumption
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Superior performance in Québec’s variable climate
At AirGreen, we recommend models such as:
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Fantech HERO 120H
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Venmar AVS ERV ECM
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Lifebreath RNC ERV Series
Grants available for ERV installation in Laval
Thanks to Hydro-Québec’s LogisVert program, the installation of an HVI-certified ERV may qualify for grants of up to $1,500, depending on income and the building’s configuration. At AirGreen, our consultants will guide you at no cost through the grant application process, checking eligibility and assembling your file.
AirGreen’s installation process: precision, transparency, efficiency
Every project we undertake in Laval follows a rigorous process:
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Indoor air quality analysis using certified instruments
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Technical assessment of the home and existing ducts
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Selection of the appropriate ERV for your residence
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Professional installation, discreet and compliant with the Building Code
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Personalized configuration of ventilation cycles
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Training on system usage and maintenance
We provide a complete report, including photos, before/after readings, and maintenance recommendations. Each installation is backed by a 10-year parts and labor warranty, exclusive to AirGreen clients.
Frequent mistakes to avoid
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Installing a non-HVI-certified unit, often ineffective
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Choosing an oversized model, resulting in noise and unnecessary airflow
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Forgetting to use MERV-rated filters adapted to urban pollution
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Skipping the annual maintenance required to ensure performance
At AirGreen, we frequently correct installation mistakes made by general contractors who lack HVAC specialization. Ventilation is a science that demands expertise, measurement tools, and hands-on experience.
AirGreen’s expertise in Laval
We’ve completed over 150 ERV installations in Laval’s residential, commercial, and institutional sectors. Our continuously trained technicians are familiar with the unique construction challenges in Laval, including tight ducting systems, insulated attics, or low-ceiling basements.
With our project office located near Laval, we’re able to respond quickly and provide local after-sales support.