When High-End Ventilation Becomes a Concrete Response to Health Issues in a Montréal Residence
This project was anything but ordinary. It wasn’t just a simple equipment replacement or a standard request for air conditioning or heating. A high-end private residence located in the Westmount district of Montréal contacted us after a series of unexplained respiratory issues affecting several family members. The air felt heavy, odors lingered, and despite a state-of-the-art central system, the discomfort persisted. At AirGreen, we conducted a thorough investigation and recommended the installation of a luxury energy recovery ventilation system, showing just how closely thermal comfort is tied to impeccable air quality.
Visual and Thermal Comfort Were Already There… But the Discomfort Remained
The residence in question is a beautifully renovated century-old home, equipped with central heat pumps and an invisible duct network. Temperatures were stable, the air conditioning was silent, and the materials were top-tier.
But over time:
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The occupants began to feel unusual fatigue.
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Frequent headaches developed, especially in closed-off bedrooms.
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A stale air sensation settled into certain rooms, even without visible humidity.
An initial external inspection revealed nothing. That’s when we were called in to conduct a deep ventilation analysis.
AirGreen Diagnosis: No Fresh Air Intake and CO₂ Build-Up
Our technicians performed a 48-hour indoor air quality test:
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CO₂ levels exceeded 1,500 ppm in underused rooms.
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The VOC index (volatile organic compounds) was above health-recommended levels.
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The central HVAC system was working… but had no fresh air intake whatsoever.
The result: the air was being recirculated and filtered, but never truly refreshed. The feeling of suffocation came from a chronic lack of oxygen renewal.
Proposed Solution: A Luxury Venmar ERV System, Discreet and Ultra-Efficient
We recommended installing a high-end energy recovery ventilation (ERV) system by Venmar AVS E15 ECM, discreet and silent, featuring:
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Attic installation, preserving the room aesthetics.
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Flexible acoustic duct network, bringing fresh air to bedrooms and extracting stale air from bathrooms and the basement.
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Smart control panel connected to a wall display in the kitchen, showing real-time air quality.
This system allows for continuous air exchange while preserving heat in winter and limiting cooling losses in summer—an energy-efficient solution perfectly suited for luxury homes.
Project Execution: Fast, Discreet, and Efficient
The client wanted the installation completed without interrupting their daily life. We:
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Completed all work in 3 days.
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Used precision drilling techniques to minimize impact on finishes.
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Smoothed all joints, painted the ventilation grilles, and cleaned every work area.
The result was perfectly integrated into the home’s design, with zero aesthetic compromise.
Tangible Results: Better Sleep, Better Breathing, Better Living
Two weeks after installation:
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CO₂ levels stayed below 600 ppm, even at night.
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Complaints of fatigue and headaches disappeared.
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A constant fresh scent now fills every room.
One of the children, who suffers from asthma, experienced a noticeable reduction in symptoms—without changing medication. A clear sign that luxury ventilation isn’t a gimmick, but a health imperative.
Advice for High-End Homes in Montréal and the South/North Shores
We strongly recommend to owners of upscale homes:
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Never overlook ventilation in renovation projects,
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Regularly measure CO₂ levels, especially in bedrooms,
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Integrate a high-quality ERV or HRV system into the HVAC network right from the design stage.
These systems may be eligible for grants in some cases if parts of the residence are rented or used for professional purposes.
Why Choose AirGreen for High-End Residential Ventilation?
Our strength lies in our ability to:
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Understand the technical and aesthetic constraints of luxury homes,
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Offer invisible and intelligent solutions,
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Work with trusted, proven brands like Venmar, Lennox, and Fantech,
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Deliver a turnkey service that’s discreet, punctual, and flawless.
We’ve successfully carried out similar projects in residences across Outremont, Île-des-Sœurs, Boucherville, and Laval, where the balance between comfort and health is a top priority.