Air Duct Mold Removal in Bodega Bay, CA

Air duct mold removal in Bodega Bay homes

Marine air sits on this coast most of the year. Cold supply duct meets damp crawlspace air. Condensation forms on the outside of the jacket first. Then it wicks inward through torn vapor barrier. That is the usual mold story here, not a plumbing leak upstairs.

So the first job is finding the wet spot, not scrubbing. We open boots and check the low crawl runs under raised foundations. Original wrap on galvanized trunk lines is often brittle and sagging. Flex in attics kinks and traps moisture at the low point. Rodent nesting and loose fiberglass debris hold water too. All of that gets documented before anything is cleaned.

Porous material that grew mold does not get saved. Lined flex, soaked insulation and crushed sections come out and get replaced. Bare sheet metal is different. It can be cleaned, dried and reinsulated. Anyone promising to fog mold out of wet flex is selling you a smell, not a repair.

The part people skip is the return. Undersized plenums and leaking filter slots in older tract homes pull crawlspace air straight into the system. Seal that and the duct stays dry. Leave it and the mold comes back the following winter.