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Read a letter from the California Department of Energy encouraging homeowners to consider duct sealing:
Department of Energy
About Aeroseal California
Aeroseal California is a licensed contractor for providing the Aeroseal® aerosol sealant product to California homes and commercial buildings. We have extensive experience in both the residential and commercial HVAC industry, and are authorized by Aerosol to implement their solution.
About Aeroseal
The patented Aeroseal 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 duct sealing system effectively seals the leaky 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.

Sealing the air duct system in a residential home typically takes only 4-8 hours. 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 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.
Did You Know?
The U.S. Department of Energy and the Electric Power Research Institute determined ... 25% to 40% of the heating and cooling energy put out by heating, ventilating and air conditioning systems ... is lost through the ductwork system.
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