What is duct sealing and why do I need it?

“Typical duct systems lose 25 to 40 percent of the heating or cooling energy put out by the central furnace, heat pump or air conditioner. Duct repairs could be the most important energy improvement measure you can do.” 

U.S Department of Energy

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Without Duct Sealing...

20% to 40% Air Leakage

3 out of 4 homes experience unintended air entering into and out of the ductwork.

Lost Conditioned Air

Duct leakage results in air not getting to the intended locations in your home, resulting in higher energy bills, reduced airflow, and comfort issues.

Poor Air Quality

Untreated and unaltered air from crawlspaces, attics, wall cavities, and other spaces can be pulled into ductwork and enter the home airstream.

Overworked HVAC

Your system is forced to work harder trying to get air where it is designed to go.


With Duct Sealing...

Up to 30% Energy Savings

Reduce duct leakage by up to 95% and your energy bills by up to 30%.

Increased Comfort

Reduce temperature differences between doors and hard to heat or cool rooms for additional comfort throughout the home.

Improved Air Quality

Reduce dust, allergens, and pollutants entering the airstream and in your living areas.

Extend Your HVAC Equipment Life

Extend the life of the most expensive system in your home by reducing the effort your HVAC equipment needs to meet your comfort needs.

Aeroseal® Duct Sealing

The patented Aeroseal sealing process is the most effective, affordable and viable method of sealing the central heating and cooling and ventilation ductwork in residential homes and commercial buildings. The U.S. Department of Energy (DOE) 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. Awards include "Best of What's New" from Popular Science magazine and the "Energy 100" award from the DOE.

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. The Aeroseal duct sealing system effectively seals residential homes and commercial buildings from the inside by using a UL tested and approved sealing material. It's clean, safe, and guaranteed for 10 years in residential applications.

What happens during the Aeroseal® process?

During the Aeroseal process, your home ventilation system is pressurized and non-toxic polymer particles are released into the ventilation system. The pressurized air escapes through any available openings, and the polymer particles are drawn toward these holes, where they adhere to them and build up until the leak is completely sealed. To make sure the process works, a computer monitors the internal pressure of the ducts before the sealant is applied and throughout the process until it detects that any leaks in the system have been sealed. When the process is complete, all leaks - including many you may not have known about - will be sealed.

Lower your utility bills + improve your health and comfort!

Leaks pull pollutants into the air we breathe. Nearly 50% of your energy bill is spent on heating and air conditioning and 30 cents for every dollar is lost due to leaking ducts. With a 10 year money back guarantee, Aeroseal can recapture lost air, improve indoor air quality, allow your machine to work as intended and heat or cool your home evenly. The sealing process can reach impossible to reach areas to give air tight comfort and savings!

Many home efficiency and comfort problems don’t stem from your furnace or air conditioner, but rather the ductwork that delivers conditioned air to your home. Sealing ductwork can help:

  • Reduce energy usage and high energy bills
  • Fix uncomfortably hot or cold rooms
  • Prevent 85% of dust and allergens from entering (or re-entering) your home
  • Reduce humidity
  • Reduce the need to clean your ductwork

History of Aeroseal

In the past, a homeowner's only option for sealing ductwork was hand sealing, which is a combination of applying mastic (a putty-like substance) which hardens and seals ductwork, along with metal adhesive tape. But hand sealing has two major drawbacks. It is dependent upon access, which means if a technician can’t reach the ductwork, it can’t be sealed. And because of excessive temperatures in attics, the adhesive on the metal tape will break down over time, leaving the cracks in your ductwork re-exposed.

Seeing a need for a change, in the late 90’s a new technology was created called Aeroseal. This revolutionary product works from inside the ductwork to seal leaks making it easy to administer and highly effective at sealing all leaks, including those hidden behind walls or under insulation. Aeroseal is made of a non-toxic polymer and can reduce the amount of leakage in your home by as much as 90%, reducing dust and other indoor air pollutants from the conditioned air in your home.

Aeroseal is EPA approved and Department of Energy commissioned, declaring it to be one of the most beneficial energy technologies available today.

View Aeroseal Safety Data Sheet

Everything they did was a plus for our entire system. We had no knowledge of our needing this type of service. We certainly thank you and your service!
— R.G.

For more information on duct sealing, call Arrowseal today:


Northern Arizona
(928) 925-5353