In Seminole, AC mold most often grows in the drain pan, coil cabinet or duct insulation after a drain line clogs or water gets into the system during a storm. Helene and Milton in 2024 left many homes with water damage that can reach air handlers and ducts. Call the number on this page to be connected with a local mold remediation company in Seminole.

Seminole conditions
Helene and Milton were described as the worst storms in Seminole's history. The city manager said hundreds of single-family homes were damaged, and residents of Grove Terrace reported heavy flooding. Homes that took on water may have had air handlers in garages or closets sitting in it, and ducts that ran through flooded wall cavities or close to the floor. Even homes that stayed dry inside can have AC trouble after a storm: a power outage leaves the house warm and humid, and a system restarted with a half-clogged drain can overflow within days. Outside of storm season, the steady Tampa Bay humidity keeps a typical AC running most of the year, so the drain line and pan are always the first places to look.
Is it mold or something else?
| What you notice | Points toward mold | Could be something else |
|---|---|---|
| Musty or earthy odor at startup | Growth in the pan, cabinet or duct liner | A dry P-trap in the condensate line pulling in sewer-like air |
| Dark dots on registers | Condensation-fed growth on the vent face | Dust or soot that wipes off cleanly and doesn't return |
| Water near the air handler | Overflow that has been feeding growth | A one-time clog with no damage yet |
| Burning or electrical smell | Not typical of mold | A motor or wiring problem; call an HVAC contractor |

Signs worth a call
- Growth visible on the blower, coil housing or inside the return
- A smell that came on after storm water entered the house
- Soft or stained drywall around the air handler closet
- Duct insulation that feels damp or has collapsed
Timing
EPA says water-damaged materials should be dried within 24 to 48 hours to prevent mold growth, so if storm water reached the system, the clock started when it came in. For everyday condensate problems, late spring is the best time for a drain check, before the summer load peaks. The City of Seminole Building Division on 113th Street handles permits inside city limits; unincorporated addresses with a Seminole mailing address go to Pinellas County. Renters can contact City of Seminole Code Enforcement, or Pinellas County Code Enforcement for unincorporated addresses.
AC & Air Duct Mold Removal questions in Seminole
Why does my AC smell musty when it turns on?
My air handler or ducts sat in floodwater. Can they be saved?
What indoor humidity should I aim for?
Should I have the air tested before calling anyone?
More mold services in Seminole
AC & Air Duct Mold Removal nearby
Helpful guides
Sources
- EPA: Mold Cleanup in Your Home
- EPA: A Brief Guide to Mold, Moisture and Your Home
- EPA: Should You Have the Air Ducts in Your Home Cleaned?
- Tampa Bay Times: Storm damage from Helene and Milton called worst in Seminole's history
- Pinellas County: Post-Hurricane Milton overview, warnings and recovery tips
- City of Seminole: Building
- Pinellas County: Submit a code complaint
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