How Does Aeroseal Work?

Sealing ductwork may seem like a daunting challenge. However, a spray-based sealant known as Aeroseal simplifies duct sealing for HVAC professionals; making it easier and faster to fill and seal duct leaks from the inside. Suited for small to medium leaks, it helps improve airflow throughout the system. It can also contribute to improved air quality and limit the amount of dust you see indoors.

Aeroseal, the company behind the product of the same name, has created a non-toxic, water-based formula that seals holes throughout a home’s air ducts and vents. When holes, cracks, and loose seals develop in ductwork, they allow a substantial amount of air to escape; this is air that has been heated or cooled, so your AC system becomes inefficient. Anywhere there are gaps, dust, dirt, and moisture can enter the system, clogging the air filter, straining HVAC components, and polluting indoor air.

How Aeroseal Works

  1. A duct leakage test is performed, by pressurizing the system, to see the quantity of air being lost.
  2. Furnace components are blocked off to protect them against circulating sealant.
  3. Duct leakage is measured precisely to later determine the effectiveness of the treatment.
  4. Flexible tubing is connected to ductwork and the aerosolized sealant is blown into the ductwork.
  5. Room-to-room monitoring ensures just the right amount of sealant is used, minimizing cleanup.

Where Aeroseal Duct Sealing Works Best

When introduced to air vents, Aeroseal automatically adheres to cracks and gaps up to 5/8” in diameter. Each treatment is backed by the company’s 10-year warranty, but it’s not unheard of that it can last much, much longer. Sealed ductwork can not only result in a cleaner home, but also reduced energy bills because your HVAC system doesn’t have to work as hard.

The sealant used is made of vinyl acetate polymer. Resistant to mold and non-flammable, this is the same compound used to make chewing gum. The sealing process takes 1 to 2 hours and there’s little to do afterwards. A children’s glue type scent disappears within 24 hours. Any residue left behind can be wiped away with a wet cloth, as it is water soluble, while you may need to accommodate improved airflow by adjusting the air vents and thermostat settings.

How do I Prepare for Aeroseal Duct Sealing?

Before the sealing process, clean the area around HVAC components and make sure all air vents are uncovered. Store food in sealed containers and cover your valuables, including electronics and televisions. Our technician will perform ductwork cleaning if necessary.

Upon arrival, protective gear will be placed throughout your home. Some appliances may be unplugged (three 20A breakers are needed for the Aeroseal equipment), and heating elements will be isolated. After the spray is applied, an inspection will conducted to and test your ductwork to measure the results of the process. Our technicians will also put back your air vent covers and perform a thorough cleaning.

Contact Black Hills Inc. Home Services

The results of Aeroseal duct sealing are permanent. Sealed ductwork allows your home to be more evenly heated and cooled, improving comfort in each room. You’ll save energy all the while and, since more air reaches your vents, there is less wear and tear on the system. Our HVAC maintenance technicians are trained in all aspects of Aeroseal so can ensure you benefit from it and our 100% satisfaction guarantee. We are also respectful of your home so afterward, it will be clean, and you can immediately start enjoying cleaner, more comfortable air.

To learn more, request service online or call Black Hills Inc. Home Services at 360-705-8590 today!