A Montréal Family Puts Smart Ventilation to the Test in Their Century-Old Home
When a skeptical yet curious family from the Plateau-Mont-Royal reached out to us to evaluate their outdated ventilation system, no one expected what came next. Their home—a typical Montréal century-old building—was plagued by stale air, lingering odors in closed rooms, and uneven thermal comfort, despite the use of portable air conditioners. At AirGreen, we saw an opportunity to propose a smart ventilation solution, capable of automatically adjusting airflow based on the real-time needs of the house.
The Initial Diagnosis: Stale Air and Outdated Solutions
During our first visit, our team identified several common issues found in old Montréal homes: poorly insulated ventilation ducts, insufficient fresh air exchange, and a reliance on inefficient individual appliances. Humidity built up in the bathroom, cooking smells lingered for hours, and the upstairs bedrooms were stifling by evening.
We conducted a thorough evaluation, including airflow analysis, humidity level measurements, and a complete ductwork inspection.
A Custom Solution: Centralized Smart Ventilation System with Sensors
Our recommendation? A centralized smart ventilation system with CO2, humidity, and temperature sensors, capable of automatically regulating airflow according to the real-time needs of the home. This system, which we’ve installed in other projects across Longueuil, Laval, and the South Shore, has proven effective in various environments.
Installed components:
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High-efficiency HRV with heat recovery
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Smart sensors in key rooms
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Mobile app control
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Automatic silent night mode
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Integrated MERV-13 filtration against urban allergens
The main challenge: integrating this technology into an old house without compromising the home’s aesthetics or requiring major renovations. Thanks to our expertise in HVAC installations in heritage homes across Montréal, we discreetly routed the ducts through the attic, tuned the system to avoid vibrations, and optimized air distribution with discreet vents.
Unexpected Reactions: Skeptics Won Over in Just One Week
Just one week after the installation, the family called us—not to complain, but to share their amazement. Here’s what they noticed:
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Perceived air quality: a marked improvement in respiratory comfort, especially for the child with asthma.
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Odor reduction: cooking smells no longer linger, and bedrooms maintain a fresh, neutral smell.
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Humidity under control: no more fogged windows, and the bathroom dries out in under 15 minutes.
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Silent operation: the system is so quiet they sometimes wondered if it was even on.
Why This Smart Ventilation System Makes All the Difference
Unlike standard ventilation systems, smart ventilation doesn’t operate at a constant speed. Thanks to its smart sensors, it automatically increases airflow when humidity rises (after a shower, for example) or when CO2 levels exceed a certain threshold (sign of high occupancy). This allows for:
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Energy savings, since the system runs less often at full capacity.
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Consistent comfort, as air is always renewed based on actual needs.
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Optimal air quality, which is essential in an urban environment like Montréal where pollen, smog, and mold are common.
A Scalable Installation for Any Type of Residence
This project proves that even a century-old home can accommodate advanced HVAC technology, provided it’s well designed. Since this installation, we’ve been contacted by other homeowners in Outremont, Rosemont, and Verdun, all facing similar challenges.
At AirGreen, we tailor each installation to the architectural constraints and lifestyle needs of the occupants. Whether it’s a heritage home in Montréal, a duplex in Laval, or a bungalow on the South Shore, we design custom ventilation systems that are silent, efficient, and built to last.
Practical Advice for Families Considering Smart Ventilation
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Get a full diagnostic: a complete HVAC audit is essential before any installation.
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Choose a system that fits your lifestyle: smart ventilation can be programmed around your habits.
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Ask about available grants: some high-performance ventilation systems may qualify for financial aid depending on your municipality.
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Rely on certified installers: even the best ventilation won’t work if installed poorly. Expertise matters.
AirGreen: Your Partner in Smart Ventilation in Montréal and Surrounding Areas
Through real installations like this one, we’ve shown that smart ventilation can completely transform a home’s comfort. Our clients appreciate our personalized approach, technical expertise, and ability to preserve the architectural integrity of their homes without compromising on performance.
If you live in Montréal, Laval, Longueuil, or on the North Shore or South Shore, and you’re thinking about upgrading your ventilation system, we’re here for a no-obligation evaluation.