Call (303) 872-5095

The Aeroseal Process


Aeroseal’s duct sealing process uses aerosol ductwork sealing technology that was developed in 1994 at the Lawrence Berkeley National Laboratory. Funded by the U.S. Department of Energy, the Environmental Protection Agency, the California Institute of Energy and Environment and Electric Power Research Institute, the research resulted in 1996 and 1999 patents granted to the University of California.

This innovative technology seals leaks in air duct systems by injecting aerosolized polymer sealant particles into pressurized ductwork systems.

Aeroseal technology’s effectiveness lies in its ability to keep the polymer particles suspended within the air stream, constantly moving until they reach holes, cracks or leaks. When particles find a leak, they leave the air stream and adhere to hole and crack edges, where they build up and seal the leaks.

Why do the aerosolized particles directed toward and deposit at leaks?

  • When supply, return and exhaust registers are sealed, all airflow must pass through ductwork leaks
  • Continuous air movement keeps the tiny aerosol particles are kept suspended in the airflow
  • When the air stream turns sharply to exit through a crack or gap, the particles collide with and adhere to the leak edges
  • Aerosolized, adhesive polymer particles can build up and seal leaks as wide as 5/8-inch

Advantages of Aeroseal Ductwork Sealing

Aeroseal’s innovated ductwork sealing process results in:

  • Lower energy bills
  • Decreased air flow and balance problems in commercial structures
  • Consistent temperatures in every room of the house
  • Less dust and humidity
  • Fewer musty odors, fumes and ventilation issues

Ductwork Sealing Technology Commercialization

Aeroseal holds an exclusive license to use this patented technology to improve duct systems in both residential and commercial structures.

Ductwork Sealing – Occupant Benefits

Aeroseal treatment can decrease duct leaks by up to 90%, saving an average homeowner up to $300 in annual energy bills. Aeroseal duct sealing treatment in an average commercial structure can decrease HVAC energy use by up to 30%.

Not only do sealed ducts save energy, residential ductwork sealing improves HVAC system performance, making homes more comfortable through:

  • Quicker cooling and heating
  • Increased hot and cold air delivery
  • More uniform distribution of heated or cooled air throughout the house

Residential leaky ductwork sealing also improves indoor air quality by reducing:

  • Dust
  • Pollen
  • Excessive humidity
  • Automobile exhaust
  • Radon gas
  • Fumes from stored paints, solvents, pesticides and other chemicals

National Impact of Residential Duct Sealing

Across the United States, houses account for almost 25% of overall annual energy consumption; the typical household spends $2000 a year — or more — on home energy bills. Unfortunately, 30 cents of every $1 spent on heating and cooling disappears into thin air because of leaky ducts. Every year, residential duct leakage costs consumers $25 billion. Leaky duct systems also force HVAC systems to work harder, putting pressure on the equipment and shortening its useful life.

Leaky ducts also lead to excessive humidity levels – and indoor humidity means costly repairs for homeowners. Tightly sealed ductworks prevent excess humidity.

Leaky duct also contribute to poor indoor air quality. The Environmental Protection Agency classifies indoor air pollution as a high-priority risk. Indoor pollutant levels often register up to five times higher than outdoor levels. Given the fact that — according to the EPA — most people spend about 90% of their time indoors, indoor air pollution poses a major public health issue. With one in five Americans suffering from asthma or allergies, indoor air pollution counts among the five most urgent environmental issues facing the U.S. today.

Inefficient, leaky duct systems contribute to environmental issues, as well. The average American house produces twice as much greenhouse gas every year as does the average car; 15% of all greenhouse gases come from the energy used to power homes.

From Casper to Cheyenne, Denver to Colorado Springs, and other regions in Wyoming and Colorado, Aeroseal can help fix leaky ducts – and save your money and health.