Do air ducts need to be cleaned before air duct sealing?
It’s likely that the holes and cracks in the ductwork have allowed dust and other particulate matter to enter the system. If you are experiencing extensive levels of household dust, this might be the reason. Your Aeroseal contractor can advise whether it will be necessary to clean your ductwork prior to sealing. [For more info on Aeroseal and duct cleaning, click here].