AC & Air Duct Mold Removal in St. Petersburg, FL

Signs of mold in the system

• A mildew smell that hits when the blower starts and lingers in closed rooms
• Spots on ceiling registers that come back after wiping
• A slimy or rust-stained drain pan, or water around the air handler
• Insulation on attic ducts that is damp, torn or sagging
• A smell that appeared after storm water came into the house

Local conditions in St. Petersburg

St. Petersburg's housing is among the oldest in the region, with a median year built of 1969. Many homes have had several AC replacements, but ducts, platforms and drain routes often go back much further, and older duct board and pans are common places for growth. About 37 percent of occupied homes are rented.

Then there is surge. The city reported more than 6 feet of storm surge during Helene in 2024, with over 100 miles of roads affected. Shore Acres was among the hardest-hit neighborhoods; some homeowners said water reached their doorknobs, and one family climbed into the attic to stay above it. Fire Rescue boats went to Shore Acres, Snell Isle and Venetian Isles. FOX 13 called it Shore Acres' fourth flooding event in four years. An air handler that sat in water at that depth, and any duct below the water line, should be treated as wet porous material that EPA says can't be cleaned effectively.

What affects cost

Angi lists a typical Tampa-area range of $3,225 to $10,750 for mold remediation in HVAC systems. Expect the price to depend on how much duct has to be replaced, whether the cabinet liner, pan or coil is involved, how difficult the attic or closet is to work in, and whether drywall near the system needs repair. After a flood, the scope is usually bigger because more of the system was wet.

What happens when you call

You'll be connected with an independent local company that handles AC and duct mold. Tell it about the system's age and location, any storm water and what you're noticing. It should inspect, show you the growth and explain what it will clean or replace, and an HVAC contractor may handle coil and blower repairs. St. Petersburg requires a permit before repairing or rebuilding storm-damaged homes, and the 49% Rule applies in flood hazard areas; storm repairs can be applied for online under the Storm Related Damage user class with City of St. Petersburg Building & Permitting. Renters can report unfixed leaks to Codes Compliance Assistance through SeeClickFix or at 727-893-7373.