FAQ
Why replace instead of just cleaning the ducts?
Duct cleaning can help with metal ductwork, but fiberglass-lined or duct-board material that's been contaminated with mold is porous — mold can grow into the material itself, not just sit on the surface. Once that happens, cleaning can't fully remove it; the affected sections need to come out.
How do I know if my ducts need replacing instead of cleaning?
We inspect the duct material and condition first. Metal ductwork with surface dust is often a good candidate for cleaning. Duct-board, fiberglass-lined ducts, or any ductwork with visible mold growth or a history of water intrusion is where we typically recommend replacement instead.
Does this tie into your mold/CIRS work?
Yes — duct condition is one of the first things we check as part of a mold-sensitive or CIRS-recovery HVAC assessment. See our full Mold & CIRS Support guide for the bigger picture.