Aeroseal in Ottawa and Gatineau: revolutionary duct sealing technology

Since 1992, Prop-Air has been committed to improving comfort and air quality in homes and buildings across the region. Today, we’re taking energy efficiency to the next level with Aeroseal technology. Did you know that in most buildings, up to 40% of heated or cooled air escapes through leaks in the ventilation ducts? Whether you’re looking to cut your energy bills in Gatineau or keep your Ottawa office at a consistent temperature, Aeroseal duct sealing is the answer. This patented process seals leaks from the inside, making sure your conditioned air actually gets where it needs to go.

What is Aeroseal technology?

Aeroseal is an automated process that injects adhesive particles into your duct network in a fine mist. Driven by pressure, those particles bind precisely to holes and cracks, sealing them permanently. Unlike manual methods, Aeroseal reaches the sections hidden behind walls and above ceilings, delivering near-complete duct sealing without any demolition work.

Maximize your comfort and your savings today.

Real, measurable benefits for your energy efficiency

Choosing Aeroseal Canada with Prop-Air means choosing lasting, documented performance for your home or building.

Significant energy savings

When leaks are eliminated, your heating and cooling system works less hard to reach the temperature you want. The result is a direct and meaningful reduction in your monthly electricity and gas bills.

Consistent comfort throughout your space

No more rooms that are too cold in winter or too hot in summer. Aeroseal ensures even air distribution across every zone of your building, eliminating temperature differences between floors.

Cleaner air and cleaner surfaces

Sealed ducts prevent dust, pollutants, and radon from seeping in through wall cavities and crawl spaces. Your air stays cleaner and your surfaces stay that way longer too.

Our 3-step sealing process

An Aeroseal intervention is fast, clean, and comes with an official performance certificate.

1. Initial leak test

We seal all your vents and pressurize the system. Our software precisely calculates the current leakage rate across your duct network before any work begins.

2. Automated injection and sealing

We inject the Aeroseal mist into your ducts. You can watch the leaks seal in real time on our screen as the process progresses. The system stops automatically once optimal sealing is reached.

3. Performance certification

Once the work is complete, we run a final verification test. You receive an official certificate documenting the exact reduction in leakage, often greater than 90%. It’s valuable proof of your property’s improved performance.

FAQ about Aeroseal technology and duct sealing

Absolutely. The adhesive used is non-toxic and ULC-certified for safe use in sensitive environments. It is commonly used in hospitals, clinics, and schools because it produces no lingering odour and contains no harmful volatile organic compounds (VOCs).
For an average home, the full process including preparation, sealing, and final testing typically takes between two and five hours. You can resume your normal activities as soon as the work is done, with no cleanup required on your end.
The sealing is guaranteed for 10 years in residential settings, but laboratory durability testing shows that the seal remains effective, flexible, and strong for over 40 years, even with the constant vibration of an operating ventilation system.
Standard duct tape or manual mastic can only seal the joints you can physically reach. Aeroseal works from the inside and treats the entire network, including leaks hidden behind drywall or under floors where no human hand could reach without tearing the building apart.