Air Duct Mold Removal in Houston, TX

Air duct mold removal in Houston homes

Gulf humidity never lets up here. Attic air sits damp most of the year. Duct mold is a water problem first, a dirt problem second. Find the water or it comes back.

Material decides the method. The 1960s–80s rectangular trunks have internal fiberglass liner. Once that liner has been wet, growth is inside the fiber, not on it. Brushing it just sheds fibers into the house. Cut it out, or replace the run. Flex duct is different. The inner plastic core wipes down, but if the outer sleeve tore at a collar and attic air reached the core insulation, that section is finished.

We look at returns near the air handler first. Platform returns and stud-bay returns pull unconditioned attic air across cold metal. Condensation collects, and you get growth at the plenum seams. Uninsulated plenum joints drip. A clogged condensate line backs into the pan. Fixing the duct without fixing that wastes money.

Original under-slab ducts in 1950s ranches are the hard conversation. They hold water and silt, sometimes roots. No remediation holds in a wet concrete trench. Abandonment and an overhead reroute is the honest call.

After flooding or a long outage with a dormant system, assume the coil needs looking at too.