Air Duct System Diagnostic & Sealing Process


The patented Aeroseal duct sealing process is the most effective, affordable, and viable method of sealing the central heating & cooling and ventilation ductwork in residential homes and commercial buildings.

The Aeroseal process won the “Best of What’s New” award from Popular Science magazine, and the “Energy 100″ award from the U.S. Department of Energy (DOE). The DOE also rated the Aeroseal duct sealing process as one of the 23 most beneficial technologies available to American consumers that has come out since the agency was created.

Sealing the air duct system in your entire home typically takes only 4-8 hours. Before the Aeroseal technology is injected, technicians block furnaces, fans and grilles so that the adhesive particles will be directed towards cracks, leaks, and holes. The technicians then inject the aerosolized vinyl polymer particles, of two to 20 micrometers, into a pressurized duct system. The particles stay suspended in the air stream until they reach the leaks, where they are deposited and build up at the leak edges until the leaks are sealed. Specialized software allows both the technician and customer to view the process in real time. You’ll immediately receive energy savings and a noticeable improvement in home comfort. Sealing process in commercial building depends on the leakage in the duct work and specific air flow or ventilation problem.

The Aeroseal duct sealing system effectively seals residential home’s and commercial building’s ductwork from the inside by using a UL tested and approved sealing material. It’s clean, safe, and guaranteed for 10 years in residential application




The Aeroseal Technology can diagnose and inspect common problems caused by leaky ducts:

•   The amount and percentage of air leaking from the ductwork and other air flow or ventilation problems.

•   Inconsistent temperature variations throughout the home or building.

•   Air flow levels for each room.

•   Backdraft and combustion safety hazard potential for fireplaces, furnaces, and gas heater rooms and closets in residential homes.

•   Manual repair needs of air duct system.

After a thorough inspection and evaluation of your central air duct system, a certified Aeroseal technicial can recommend ways to maximaze your savings and improve your home comfort or improve building efficiency and solve air flow / ventilation problems.


Major factors during inspections are construction practices, type of duct work, age of the home / building, hot or cold or stuffy rooms, Indoor Air Quality (IAQ) problems, high energy bills etc.


The Aeroseal technology involves computer-based tools and reports to let Aeroseal’s trained and certified technicians gather information about duct leakage and evaluate air flow/ ventilation problems.

Aeroseal By Mark Modera,Inventor