Mold After Ian, Helene, and Milton: What Sarasota Homeowners Missed

A week after the storm, the floors were dry, the fans were back in the garage, and the walls looked fine. That's exactly the problem. Mold from storm water rarely shows up where people look first. It grows inside wall cavities, on the top of ceiling drywall, and on roof sheathing, and it can take months to show through paint. Three storms in three years put water inside a lot of Sarasota County homes. Here's where each one tended to leave it.

Ian (September 2022): Rain That Kept Rising

Ian's eye came ashore south of Sarasota County, but the rain fell for hours over the Myakka River watershed. In North Port, the Myakkahatchee Creek and the Myakka River kept rising after the storm passed, and neighborhoods flooded from the ground up. Elsewhere in the county, wind damage to roofs and sustained rain meant ceiling leaks.

What was missed: drywall that was cleaned and painted instead of cut out; batt insulation left in the lower wall; baseboards and door casings reused; vinyl plank floors relaid over slabs that were never fully dried.

Helene (September 2024): Surge From a Storm Far Offshore

Helene stayed well out in the Gulf on its way to the Big Bend, and many people didn't expect much. But its surge still pushed into Manasota Key, Englewood, and low-lying areas along the bays and barrier islands. Water came in at ground level, through garages and under doors.

What was missed: lower kitchen and bathroom cabinets, whose particleboard soaks up water and holds it; garage walls, where nobody looks; and drywall cut at the visible water line with wet insulation left behind.

Milton (October 2024): Wind and a Second Round of Water

Milton made landfall near Siesta Key on October 9, less than two weeks after Helene. Along the south county coast it brought another round of surge into homes that were already gutted or drying. Across the rest of the county, the damage was mostly wind: lifted shingles, cracked tiles, lost soffits, and broken windows, followed by rain.

What was missed: attic insulation and roof decking wetted before the tarp went on; roof repairs that fixed the shingles but never looked at the deck underneath; soffit openings that let rain blow into the attic; and repairs in progress from Helene that got wet again.

Five Places to Look Now

1. The bottom few feet of walls in any room that took floodwater. Press on the drywall near the baseboard. Soft, bubbled, or stained means a closer look.
2. Inside base cabinets. Swollen bottoms, a musty smell when you open the door, or dark spots on the back panel.
3. The attic over any roof damage. Stained sheathing, matted insulation, or dark spots around nails.
4. The ceiling under the attic. New stains, especially ones that grow on humid days.
5. The air handler and its closet, especially if the system ran while the house was wet or sat in a flooded garage.

Why "It Looks Dry" Isn't Enough

Drywall paper dries from the surface. The gypsum core, the insulation behind it, and the wood bottom plate can stay wet much longer, especially in a closed wall with summer humidity outside. Concrete block holds water for a long time too. A moisture meter or thermal camera tells you what touch can't. That's the core of a professional mold inspection, and wall-cavity sampling can confirm whether growth is happening inside a wall you'd rather not open.

Before the Next Storm

• Photograph every room now, including inside closets and cabinets, so you have a "before."
• Keep a copy of your homeowners and flood policies somewhere you can reach after evacuating.
• Know where your main water shutoff is.
• Line up a plan for drying fast: fans, a dehumidifier, and someone to check the house if you leave.

If water does get in, the hurricane and water damage page lays out the first 48 hours and the first two weeks. For coverage questions, read does Florida homeowners insurance cover mold?

General information only, not insurance or legal advice.