Air Duct Mold Removal in Lenexa, KS

Air duct mold removal in Lenexa homes

Two spots account for most Lenexa mold calls. Cold-side evaporator coils and the plenum interior. Both stay wet through humid July and August. Older parts of town run galvanized trunk and branch across basement ceilings, with panned floor-joist returns typical of 1950s–70s builds. A panned return is the joist cavity with sheet metal nailed under it. Bare wood, old dust, basement moisture. All pulled straight into return air.

Newer subdivisions have a different failure. R-6 and R-8 flex in unconditioned attics, where summer temperatures climb well past comfortable. Chilled supply air meets hot attic air at the register boot. The boot sweats. Speckling shows up on the ring and the ceiling paint around it. That is condensation at one fitting, not growth through the whole system.

Removal depends on the surface. Bare galvanized cleans up and stays clean once the dust load is gone. Porous material does not. Fiberglass duct board and flex inner liner hold growth down in the fibers. The honest answer there is section replacement, not scrubbing.

Fogging a sanitizer over an active moisture source accomplishes nothing. Check the condensate drain, the pan slope, boot insulation, and exposed crawlspace soil first. Fix the water, then clean.