Mold growth in air ducts on riverfront streets
Why it happens here
Homes within a few blocks of the Housatonic River run higher indoor humidity from spring through fall. Moisture condenses on cool duct walls, and that is enough for mold spores to colonize, especially on the return side where air moves slowly.
Our approach
We inspect with a duct camera, remove affected insulation rather than drying it in place, apply an antimicrobial spray, and run a sanitizing fogger through the system. We also check the basement for the moisture source so the problem does not return.