February 5, 20268 min read
Mold in Air Ducts: How to Spot It, How to Fix It
Mold in HVAC systems is more common than you think — especially in coastal South Bay homes.
Mold inside ductwork is one of the most underdiagnosed indoor air quality problems in Southern California. The Palos Verdes Peninsula's coastal humidity creates ideal conditions for mold growth.
Signs: visible discoloration around registers, musty smell when HVAC runs, allergy symptoms that worsen indoors, recent water damage near the air handler.
Solution: IICRC-aligned remediation with containment, removal of contaminated materials, EPA-registered fungicide, and source-moisture correction.