Air duct cleaning
What it is, when it helps, and when it doesn’t.
Substantial visible mold
Mold growing inside hard-surface ducts or on other parts of the heating and cooling system.
Pests
Rodents or insects that have gotten into the ducts.
Heavy dust and debris
Ducts clogged with dust and debris, or particles being released into the home from the vents.
The EPA says cleaning has never been shown to prevent health problems and recommends it only as needed.
Source: U.S. Environmental Protection Agency, “Should You Have the Air Ducts in Your Home Cleaned?” epa.gov
Do your ducts need cleaning?
Substantial mold in the ducts or system?
Rodents or insects in the ducts?
Dust or debris coming out of your vents?
This follows the EPA’s guidance. It is not an inspection.
Know your vents
The vents you can see are where an inspection starts.
Supply register
Blows conditioned air into a room. The EPA lists dust or debris released from supply registers as one sign to consider cleaning.
Return grille
Pulls room air back toward the system.
Ceiling diffuser
A supply outlet set into the ceiling, often square.
Floor register
A supply outlet set into the floor.
Linear slot
A long, narrow supply outlet.
Round diffuser
A round supply outlet, often on exposed ducts.
What a cleaning includes
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