Air Duct Cleaning
EPA on uninsulated duct:
“You should consider having the air ducts in your home cleaned if:
There is substantial visible mold growth inside hard surface (e.g., sheet metal) ducts or on other components of your heating and cooling system.” Note: They specify HARD SURFACE duct. This would NOT include insulated duct or duct with soft plastic liner and insulation outside.
EPA on insulated duct:
“If you have insulated air ducts and the insulation gets wet or moldy it cannot be effectively cleaned and should be removed and replaced.” Note: For the past 15 (+) years, the majority of the homes in our area have been constructed with flexible duct and internally insulated duct.
EPA on chemicals used on duct cleaning:
“While the targeted use of chemical biocides and sealants may be appropriate under specific circumstances, research has not demonstrated their effectiveness in duct cleaning or their potential adverse health effects. No chemical biocides are currently registered by EPA for use in internally-insulated air duct systems.”
The majority of our customers have a flexible duct. The plastic/wire inside is easily breached with duct cleaning devices. There is no guarantee to the safety of cleaning chemicals. Wray’s believes the most environmentally friendly and cost-effective way to address unhealthy ducts is a replacement.
We respect the investment you have in your home and will be happy to discuss your air distribution specifics at no charge.
All EPA quotes are from the following site: https://www.epa.gov/indoor-air-quality-iaq/should-you-have-air-ducts-your-home-cleaned