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By Madeline Scribner · 3 min read · Updated

After a Flood: What to Do in the First 72 Hours

If water has been inside your home, the next 72 hours decide a surprising amount, how smooth your insurance claim goes, how much of the structure you save, and whether mold becomes a second disaster.

Here's the order of operations Tampa Bay restoration pros and adjusters wish every homeowner knew.

Hours 0 to 12: safety and stabilization

Do not walk into standing water while the power is on, have the utility or an electrician confirm it's safe. Assume floodwater is contaminated: it has been through streets, sewers, and yards. Wear boots and gloves for everything that follows.

If the flooding came through a failed opening, board or barrier it before the next rain band. Shut off water-damaged appliances and gas pilot lights, and ventilate as soon as the weather allows.

Hours 12 to 24: document everything, then touch things

Photograph and video every room before you move or discard anything, wide shots plus close-ups of the waterline on the walls. Your claim depends on this record.

Notify your flood insurer immediately to start the claim; NFIP policies generally require a signed Proof of Loss within 60 days of the flood, and the queue for adjusters is longest right after a regional event. Keep a log of every call, name, and claim number.

Keep samples and photos of discarded materials, a strip of carpet, a cut of drywall, so the adjuster can verify quality later.

Days 1 to 3: dry it out before mold moves in

Mold can begin colonizing wet materials within 24 to 48 hours. Move air aggressively: fans, dehumidifiers, open cavities. Wet drywall and insulation below the waterline generally need to come out, cut a clean line above the high-water mark.

Run dehumidifiers until moisture readings, not appearances, say the framing is dry. Sealing paint over damp studs is how a flood becomes a permanent smell.

The decision that changes the next storm

Once the immediate crisis passes, most families ask the same question: how do we make sure this never happens again? Elevation is the gold standard and the most expensive answer. Sealing the openings the water came through is the fast, affordable one.

If your flood came through doors, sliders, or the garage, a custom barrier system turns those exact openings into the strong points, and FEMA's own mitigation guidance is built around protecting openings to the base flood elevation. It's the difference between rebuilding again and deploying planks for 10 minutes.

Key takeaways

  • Power off before you wade; treat all floodwater as contaminated.
  • Photograph everything before touching anything; NFIP Proof of Loss is generally due within 60 days.
  • You have 24 to 48 hours to beat mold, cut wet drywall above the waterline and dry to the meter.
  • Protect the openings the water used before the next storm, that's the lesson that sticks.

Common questions

Does homeowners insurance cover flood damage?

Standard homeowners policies exclude rising floodwater, that's what separate NFIP or private flood policies cover. Wind-driven rain through a damaged roof is a different peril and may fall under homeowners. Document everything and file with the right carrier for each.

How soon can flood barriers be installed after a flood?

Once the opening's structure is sound, posts can be mounted in a normal install window, typically within a couple of weeks of assessment. Many of our Tampa Bay installs came in the months right after the 2024 storms, before the next season.

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