A routine inspection turns into a surprise: AirGreen removes a bird’s nest from a ventilation duct in Blainville
At AirGreen, every HVAC maintenance service is unique. But sometimes, it becomes truly unexpected. That’s exactly what happened recently during a residential ventilation cleaning on the North Shore, specifically in Blainville. The job seemed straightforward: a preventative visit to clean the air ducts in a single-family home. But right from the start, our technicians faced an unusual situation — a bird’s nest lodged deep inside an exhaust vent of the ventilation system.
A ventilation duct blocked… by nature itself
During our initial inspection in Blainville, one alarming sign immediately caught our attention: a significant drop in airflow in the ventilation system, accompanied by strange noises coming from the exterior duct. When we carefully removed the vent cover, we discovered a large bird’s nest made of twigs, moss, and feathers, partially blocking the airflow. This type of obstruction doesn’t just reduce the system’s energy performance — it also poses a serious risk to indoor air quality and fire safety.
Health and mechanical risks of a bird’s nest in your ventilation
Organic matter buildup inside an active duct is no small issue. Beyond reduced performance, a nest in a ventilation duct can:
-
Promote mold growth due to trapped humidity
-
Lower indoor air quality, causing allergies or respiratory discomfort
-
Attract other pests such as moths, flies, or small rodents
-
Cause lingering odours
-
Pose a fire hazard if debris gets pulled into an overheating fan motor
At AirGreen, we never compromise on safety or comfort. Our team immediately secured the area and carried out a complete, careful removal of the nest without causing any damage.
How AirGreen professionally solved the issue
After removing the nest, we proceeded with:
-
A full cleaning of the affected duct, using an industrial-grade HEPA vacuum and rotary brushes
-
A camera inspection to ensure no debris or residue remained deeper in the duct
-
The installation of an exterior aluminum anti-intrusion vent cover, weather-resistant and animal-proof
-
An airflow test to confirm full system efficiency was restored
Thanks to this intervention, the Blainville family regained optimal comfort, clean ventilation, and most importantly, peace of mind.
Why choose AirGreen for ventilation cleaning in Montréal, Laval, Longueuil, North Shore and South Shore
Cases like this, while rare, aren’t unheard of. Especially on the North Shore, where homes are often surrounded by forest or dense vegetation, wildlife naturally seeks out warm, protected spots to settle. An unprotected vent opening can seem ideal to them.
That’s why we recommend all residents in Montréal, Laval, Longueuil, the North Shore, and the South Shore to schedule annual HVAC maintenance. This helps:
-
Prevent blockages caused by debris, dust, or animal intrusions
-
Improve indoor air quality
-
Extend the lifespan of HVAC systems
-
Boost overall energy efficiency in the home
Tailored solutions for every situation
At AirGreen, we know that every home has its unique features. In this Blainville case, we even recommended that the client reinforce other exterior entry points in the ventilation system. We provided a customized solution, including:
-
Installation of reinforced bird-proof vent covers on all exterior outlets
-
Set-up of an annual cleaning schedule
-
Indoor air quality testing, to check for mold spores or allergens
Our HVAC expertise — your guarantee of peace of mind
This type of service call shows just how important it is to leave your HVAC maintenance to experienced specialists. Our technicians are trained to handle all kinds of unexpected scenarios with precision, expertise, and courtesy. Whether it’s a wall-mounted heat pump, a central system, or a simple bathroom vent, we apply the same high standards.
Most importantly, we take the time to explain every step to the client, ensuring total transparency and a stress-free experience.
AirGreen: Serving Greater Montréal for all your HVAC cleaning needs
We operate throughout Greater Montréal, including Montréal, Laval, Longueuil, and the North Shore (Blainville, Terrebonne, Boisbriand…) and South Shore (Brossard, Saint-Lambert, Longueuil…).
Whether it’s a preventative cleaning, a technical inspection, or an issue as surprising as a bird’s nest, our team is ready to respond quickly, efficiently, and with unmatched professionalism.
Conclusion: Never underestimate what might be hiding in your ducts
The experience in Blainville is just one example of our commitment to providing high-quality HVAC services, tailored to every situation, even the most unexpected. At AirGreen, we know that prevention and regular maintenance are the best ways to preserve the performance and safety of your heating, ventilation, and air conditioning systems.
Trust our team to clean, protect, and optimize your HVAC systems — and avoid unpleasant surprises!