AC & Air Duct Mold Removal in Dunedin, FL

Our street flooded in Helene. Could the ductwork be affected?

Yes, if water reached the air handler or any duct run. In Baywood Shores, surge came over the seawall in 2024 and homeowners cut out walls from the floor up to about five feet, with furniture and appliances stacked at the curb. The same neighborhood flooded during Idalia in 2023, when one resident had about 18 inches inside and neighbors found the tidal valves meant to keep water out weren't working. Air handlers in garages or ground-floor closets, and any duct in a wall chase that sat below the water line, should be inspected. EPA says insulation in ducts that gets wet can't be cleaned effectively and should be replaced. Running the system before that check can spread mold through the parts of the house that stayed dry.

Our house dates from the 1970s. Is the age part of the problem?

Often it is. Dunedin's homes are weighted toward the 1950s through the 1980s; the median year built is 1976 and about 61 percent predate 1980. Systems in houses that age have usually been replaced at least once, but ducts, platforms and drain routes are frequently original. Common weak points are a secondary pan that was never added, a condensate line that runs flat with no clean-out, and duct board that has absorbed decades of humidity. A company should check all of those, not just the vents you can see.

Who handles permits if ducts or the air handler are replaced?

Dunedin runs its own building department rather than relying on Pinellas County. Permits for replacement ductwork, equipment and any drywall repair around the air handler closet go through the City of Dunedin's Community Development building permits and inspections office. The HVAC contractor normally pulls the mechanical permit, but confirm it before work starts. Florida law also keeps the mold assessor and the remediator on a structure separate for 12 months, so a clearance check after cleanup comes from a different company.

A note for Dunedin renters

About 29 percent of Dunedin homes are rented. If a landlord isn't fixing an AC leak or a moisture problem, the City of Dunedin Code Compliance Division enforces the city code, the Florida Building Code and the International Property Maintenance Code, and takes reports through its online Report a Violation form. For health questions, the Florida Department of Health in Pinellas County is the local office; after Helene it warned that moisture from leaks or flooding speeds mold growth that keeps damaging materials long after the storm.