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 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. 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.

We Fix and Seal Leaky Ducts

We dramatically reduce the amount and percentage of air leaking from the duct-work and other air flow or ventilation problems.
We reduce inconsistent temperature variations throughout the home or building.
We provide more equalized air flow levels for each room.
We reduce back-draft and combustion safety hazard potential for fireplaces, furnaces, and gas heater rooms and closets in residential homes.
We identify and perform manual repair needs of air duct systems as well as providing the Aeroseal process.

In an Aeroseal air duct diagnostic, a certified Aeroseal technician inspects and evaluates your central air /forced hot air duct system and recommends ways to maximize 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.

Aeroseal’s trained and certified technicians use computer-based tools and reports to gather information about duct leakage and register airflows.

 Click on any Thumbnail Image to see a larger picture. To start the Aeroseal duct sealing process, all room, ceiling or floor registers are replaced with foam plugs or are taped off using a special plastic lining.

A small access hole is cut into the supply or return air plenum and a temporary collar is attached. The air conditioning indoor coil, fan, and furnace are temporarily blocked with a foam plug to avoid the entrance of any sealing particles into this equipment.

Once the system is properly sealed, the patented injection machine is connected to the air duct system using a flexible plastic tube.

The exclusive Aeroseal duct sealing system injects adhesive particles into the air duct system. The particles travel through the air duct system seeking holes and cracks that are located throughout the ductwork. The adhesive duct sealing particles attach directly onto the edges of any hole and crack, effectively sealing it without coating the inside of the ductwork.

When the sealing process is completed, the results are verified and provided to the customer.

 After the ductwork sealing: Measuring the duct seal.

Once the Aeroseal air duct sealing is complete, the technician will again measure the duct system leakage.

A sealing certificate and a tightness certification are generated by the computer. The sealing certificate shows duct leakage amounts before and after sealing, as well a graph of the sealing process, plus overall heating or cooling capacity improvement. The tightness certification, affixed to your duct system, shows the tightness of the duct system after completion of the sealing process.

Aeroseal can reduce duct leakage by up to 90% (conservatively) and save a typical homeowner up to 30% of HVAC energy use (up to $1000 a year in energy costs based on the size of your home and current leakage level).

The measured result of a typical Aeroseal air duct sealing process is shown below:

The air sealing system results are guaranteed for 10 years for residential homes.

 Aeroseal’s aerosol ductwork sealing technology was invented and developed by the Energy Performance of Buildings Group at Lawrence Berkeley National Laboratory in 1994. The research was funded by US Environmental protection agency, US dept. of Energy, Electric Power Research Institute and California Institute of Energy and Environment.

The University of California was granted initial patents in 1996 and 1999.

This technology internally seals duct leaks in air distribution ducts by injecting a fog of aerosolized sealant particles into a pressurized duct system.

The key to the technology is to keep the particles suspended within the air stream without depositing on the duct surfaces until they reach the leaks, where they leave the air stream, deposit at the leak edges, and seal the leaks. Aerosol particles are directed toward and deposit at the ductwork leaks because:

All supply, return and exhaust grilles are temporarily sealed, so that all the airflow passes through the ductwork leaks;
Small aerosol particles are kept suspended in the airflow by continuous air movement;
As the air stream makes a sharp turn to exit through a leak, the particles collide with and adhere to the leak edges; and
Using adhesive solid particles allows the built-up seal to span leaks as much as 5/8 inch wide.

Aeroseal provides a solution to:

High energy bills

Air flow and air balance issues in commercial & residential buildings

Uneven temperatures resulting in hot and cold rooms in residential homes

Excessive humidity and dust

Musty odors or fume smells and other ventilation problems

Aeroseal can reduce duct leakage by up to 90%, and save a typical homeowner up to $300 – $1000 a year in energy costs

Aeroseal can save a typical commercial building up to 30% of HVAC energy use.

Residential leaky ductwork sealing reduces the entry of:

Dust

Excess humidity

Automotive exhaust

Radon gas

Fumes from stored paints, solvents, pesticides, etc.

Residential Leaky ductwork sealing improves the performance of heating and cooling systems, making a homeowner more comfortable by:

Cooling or heating the house more quickly

Delivering more hot or cold air

Distributing heating and cooling more uniformly throughout your house

American homes use almost 25% of the energy consumed in the United States, with the average household spending $2000 a year on home energy bills. On average, 30 cents of every $1 spent on heating and cooling disappears into thin air due to leaky ducts. This duct leakage in homes costs consumers $25 billion each year on escaping energy. These leaks also force HVAC systems to work harder and ultimately wear out sooner. Another related issue is duct leaks contribute to poor indoor air quality. Indoor air pollution is an EPA high-priority public risk with levels of pollutants indoors being up to 5 times higher than outdoor levels. According to the EPA, most people spend roughly 90% of their lives indoors. This makes indoor air pollution one of the five most urgent environmental problems facing the US with 1 in 15 Americans having allergies or asthma. In addition, the average home produces twice the greenhouse gases as the average car. In fact, 15% of all greenhouse gases are generated from the energy used in houses nationwide. Another issue to consider is that excess humidity levels can lead to costly repairs for homeowners.