Aeroseal Duct Sealing is a patented, breakthrough technology that tackles leaks from the inside out. Aeroseal software allows our technician to accurately measure the duct leakage in a residential home. The Aeroseal process puts escaping air under pressure and causes polymer particles to stick first to the edges of a leak, then to each other, until the leak is closed. When the sealing process is completed, the results are verified and provided to the customer.