In Largo, mold in an AC system usually traces to an aging air handler with a clogged drain, ducts under a mobile home floor that stay damp, or equipment that took on water when McKay Creek and Church Creek overflowed during Milton. Turn the system off and get the moisture source found before anything is cleaned. Call the number on this page to be connected with a local mold remediation company in Largo.
Largo's housing and AC mold
More than half of Largo's homes were built before 1980, with about a third from the 1970s alone. Mobile and manufactured homes make up roughly 26 percent of housing units, about as many as detached single-family houses. During Hurricane Milton in 2024, McKay Creek overflowed into homes on Crescent Drive and nearby streets, and residents near Church Creek reported similar flooding. Each of those situations puts water near a home's AC equipment.
What to do now
- Turn the system off. EPA warns that running a system you suspect is contaminated can spread mold through the house.
- Open the air handler closet and look for standing water, rust or slime in the pan.
- In a mobile home, look under the skirting for sagging belly wrap, wet insulation or puddles under the duct line.
- If creek water came inside, note how high it reached and whether it touched the air handler or floor registers.
- Skip the foggers and bleach. EPA says no biocides are registered for insulated ducts, and the moisture still has to be fixed.
- Find out whether your address is inside city limits; it determines which office handles permits.
Signs and their usual causes
| What you see | Likely cause |
|---|---|
| Musty air from floor registers in a mobile home | Wet or torn duct inside the underbelly |
| Rusted pan, water on the closet floor | Old pan or a blocked condensate line |
| Dark growth on the blower wheel | Moisture carried past a dirty or wet coil |
| Smell that started after Milton | Floodwater reached ducts or the air handler |
| Spotting around ceiling vents | Condensation from poorly insulated duct boots |
Cost factors
Angi puts mold remediation in HVAC systems at a typical Tampa-area $3,225 to $10,750. Jobs at the low end are usually a cabinet, pan and short duct section. Costs climb with long runs of replacement duct, belly repairs under a mobile home, liner or coil replacement, and containment in tight spaces. Permits for replacement equipment inside the city go through the City of Largo Building Division on West Bay Drive; unincorporated addresses with a Largo mailing address go to Pinellas County. Renters can report unfixed leaks to the City of Largo Community Standards Division.
AC & Air Duct Mold Removal questions in Largo
Does a mobile home's duct system need special attention?
What does AC and duct mold removal usually cost?
My condensate line keeps clogging. Is that a mold problem?
I rent, and the AC smells musty. What can I do?
More mold services in Largo
AC & Air Duct Mold Removal nearby
Sources
- EPA: Mold Cleanup in Your Home
- EPA: Should You Have the Air Ducts in Your Home Cleaned?
- Angi: How Much Does Mold Remediation Cost in Tampa, FL?
- Point2Homes: Largo demographics and housing
- FOX 13: Largo homeowners want city to take accountability for creek overflow
- Pinellas County: Post-Hurricane Milton overview, warnings and recovery tips
- City of Largo Building Services
- City of Largo Community Standards
Last updated: