Silence restored: how to eliminate noise disturbances from an air exchanger in Montréal
In Montréal, whether it’s a peaceful home or a well-designed condo, nothing should disrupt your daily peace… except perhaps a noisy air exchanger. This issue, far more common than one might think, can quickly become a source of stress, fatigue, and even insomnia for many homeowners or building managers.
At AirGreen, we’ve helped hundreds of clients in Montréal, Laval, Longueuil, on the North Shore and South Shore, who reached out to us to resolve noise issues related to their ventilation system. Thanks to our expertise in HVAC installation, we’re sharing here concrete, effective, and long-lasting solutions to bring back the quiet—without compromising your indoor air quality.
1. Identifying the true source of the noise: an essential diagnosis
Not all noises are created equal. It’s essential to begin by accurately diagnosing the source of the noise coming from the air exchanger. It could be:
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Vibrations due to poor installation (missing dampers, uneven surface, loose screws).
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Poorly secured or poorly insulated ducts, creating echo and resonance.
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Dirty or clogged filters, forcing the motor to work harder.
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An unbalanced turbine or dirty fan.
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A low-end unit, poorly suited for your space or lacking maintenance.
At AirGreen, we always begin with a full inspection of the unit, the ductwork, and the mounting to pinpoint the exact issue. This step is crucial—it prevents unnecessary and costly replacements.
2. Adopting the right maintenance habits to reduce noise
Regular HVAC maintenance performed by professionals can significantly reduce the sound level of your system. Here are the tasks we recommend (and perform) during our maintenance visits:
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Thorough cleaning of filters, turbine, and ducts.
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Lubrication of moving parts (as per manufacturer guidelines).
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Tightening of screws, brackets, and vibrating panels.
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Noise level check at each operating speed.
For example, a client in Longueuil contacted us about a deep, constant noise from their HRV. By cleaning the motor and realigning a slightly off-balance turbine, we were able to reduce the noise by over 50%, while also improving airflow.
3. Replacing the old exchanger with a quieter, high-performance model
Sometimes, despite all adjustments, the only lasting solution is to replace the unit. Older models are often noisy, energy-hungry, and inefficient, and can be effectively replaced with new-generation models, such as:
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Venmar AVS N Series: quiet, compact, and very low energy consumption.
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Zehnder ComfoAir: extremely low noise level, ideal for bedrooms and small spaces.
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Lifebreath RNC Series: excellent performance-to-noise ratio for single-family homes.
At AirGreen, we’ve installed these models in multiple residences in Laval, on the North Shore, and in condos in Montréal. Our clients immediately noticed a dramatic improvement in acoustic comfort, without sacrificing air quality or energy efficiency.
Custom HVAC installation: each replacement starts with a full study of the volume to be ventilated, existing noise levels, and client expectations. We never suggest generic solutions.
4. Additional soundproofing techniques: when the environment amplifies the noise
Even a quiet air exchanger can become disruptive if its acoustic environment is poorly designed. In these cases, AirGreen offers several options:
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Adding acoustic foam inside the unit’s casing.
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Using sound-insulated ducting.
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Wall mounting with reinforced brackets and anti-vibration pads.
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Relocating the unit to keep it away from sleeping areas.
For instance, in a South Shore home, the exchanger was installed near a bedroom and would vibrate the walls with each startup. After our intervention, perceived noise dropped from 48 dB to just 30 dB. A noticeable difference that finally allowed for restful nights.
5. Common mistakes to avoid when installing an air exchanger
A poor HVAC installation is often the main source of noise. Here are some issues we frequently see in the field:
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Units poorly suspended, fixed directly to rigid surfaces.
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Ducts that are too narrow, causing turbulent airflow.
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No calculation of optimal airflow.
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Poor placement of the exterior air intake.
Our certified installers handle each project with precision: we follow all acoustic standards, recommend the right products, and guarantee a quiet, long-lasting installation.
Conclusion: Regain silence thanks to AirGreen’s expertise
An air exchanger should never be a noise nuisance. With a thorough evaluation, proper maintenance, and sometimes a strategic replacement, it is absolutely possible to restore optimal acoustic comfort without compromising your indoor air quality.
At AirGreen, we master every aspect of silence: selecting the right model, precise tuning, custom installation, and soundproofing interventions when needed. Whether you’re in Montréal, Laval, Longueuil, North Shore, or South Shore, our team is here to help.
Contact us today for a free evaluation and finally say goodbye to your air exchanger’s noise problems.