Frequently asked questions - Aeroseal

How do I know if my ducts leak?

According to the Department of Energy, 95% of homes leak between 25% and 40%. In simple terms, that means air is not getting to designed spaces causing hot/cold spots in the house, excessive dust, and high energy bills.

How long will it last?

Guaranteed for 10 yrs. in residential applications. Based on testing, sealant has an expected life of at least 40 years.

Is the sealant safe?

Sealant is Non-Toxic and has been used in hospitals, schools, surgery centers, and government facilities all over the world. The sealant has been tested by an independent lab and found to have extremely low concentration of VOC’s, during sealing time only. The primary component has NO OSHA maximum exposure limit.

What is the sealant material made of?

Primary component is Vinyl Acetate Polymer, used in water based paints, hair spray, and chewing gum. How long does it take to dry? Drying time is less than 2 hours.

Will my house smell?

There is a mild odor, like Elmer’s Glue, during sealing. Odor should dissipate by next morning (or before).

Should I be in the house?

We prefer no one is in the house during sealing due to impact on productivity. If you are pregnant, senior, or infant, or utilizing medical equipment we do encourage you to leave as a simple safety precaution.

How big of leak will be sealed?

Up to a 5/8” hole can be sealed during normal range of productivity.

What about leaks that are too big?

Broken and disconnected ducts and large leaks need to be fixed prior to sealing. If a hidden large leak is uncovered during sealing, process is stopped and a solution is discussed

Where does the sealant leaking from the ducts go?

Sealant escaping from the ducts will settle in wall cavities, attics or crawl spaces. During the process, we will filter the air to capture any sealant entering the living areas.

Will it harm electronics?

We recommend sensitive electronics be covered.

What about my HVAC accessories?

Technician is trained to protect all accessories prior to sealing. Some items, such as humidifiers or UV lights, may be removed then reinstalled to prevent damage; others may be bagged or covered.

Do ducts need to be cleaned before sealing?

Extremely dirty ducts should be cleaned. We recommend the technician assess the condition of the ducts prior to sealing.

Can I clean my ducts if they are sealed?

Ducts of all material types can be successfully cleaned after sealing.

Will the ducts be covered with sealant?

The Aeroseal process does not coat or line the ductwork. The only sealant remaining in the ducts will be at the previous leak.

How does it work?

Duct sealing, utilizing the patented Aeroseal process, takes a non-toxic liquid sealant, heats and dries it to become an aerosol mist. The mist travels through a pressurized duct system and seals visible, invisible, and inaccessible leaks in the system. We guarantee it and it is certified.