What to Do About Mold After a Flood in Florida

A flood is disorienting. Water is where it should never be, and you are standing in it trying to decide what matters first. The good news worth holding onto: whether this becomes a mold problem is largely in your hands, and the most important things to do are simple. This guide walks the first two days in order.

The 24–48 hour drying window is the whole game

Mold spores are already in every Florida home. They do not need an invitation; they need moisture. The EPA and CDC both note that mold can begin growing on wet materials within 24 to 48 hours. Porous material — drywall, insulation, carpet, upholstery — that stays wet past that window will grow mold. After that point, drying still helps, but you are increasingly fighting growth rather than preventing it.

Two clocks start the moment the water arrives, and they run together. The first is biological: the 24–48 hour window above. The second is your insurance clock — most policies require "prompt" notice and reasonable steps to limit damage, so the same fast action protects both your home and your claim. (More on the claim itself below.)

So the single most useful frame for the first two days is this: get everything dry, fast. Not perfect, not pretty. Dry.

• Stop the source if you safely can — shut off water at the main, or wait for floodwater to recede.
• Get standing water out: pump, wet-vac, mop, buckets.
• Open windows only if the outside air is drier than inside (after a storm it often is not). Run air conditioning and dehumidifiers instead — in Florida humidity, AC is your most reliable drying tool.
• Move air across wet surfaces with fans. Pull baseboards and lift soaked carpet so air reaches what is hidden underneath.
• Pull furniture up off wet floors and separate wet items so they can breathe.

If the wet area is large, or water is inside walls and you cannot tell how far it spread, this is the moment a professional with moisture meters earns their fee. You can read more in our guide to signs of mold in a house so you know what to watch for in the weeks after.

What to save and what to discard

The deciding factors are two: is the material porous, and was the water clean or contaminated? Flood water from a storm, a sewer backup, or rising ground water is contaminated (category 3) — it carries bacteria and debris, and porous things it soaks usually cannot be safely saved.

Usually discard when soaked by contaminated water:

• Carpet and carpet padding
• Drywall and insulation that got wet (cut drywall a foot or two above the waterline)
• Upholstered furniture, mattresses, and pillows
• Ceiling tiles and particleboard

Usually savable if dried quickly:

• Solid wood furniture (clean, dry within 24–48 hours)
• Metal, glass, hard plastics — wash and dry
• Most clothing and washable linens — launder in hot water

When in doubt, photograph the item first (for your claim), then decide. Sentimental and irreplaceable items can sometimes be saved by a restoration specialist even when standard advice says toss — ask before you throw those away.

When the insurance clock starts

The clock starts the moment the loss happens, not the day you get around to calling. Two things protect your claim:

1. Document before you clean. Photos and short videos of standing water, the waterline on walls, and every damaged item — before you move or discard anything. This is the evidence your adjuster needs.
2. Notify your insurer promptly. Most policies require "prompt" notice; delay is a common reason claims get reduced.

Be clear-eyed about coverage. The water's source decides everything. A sudden burst pipe is often covered under a standard homeowners policy. Storm surge and rising flood water generally are not — that requires separate flood insurance (often through the NFIP). And mold itself is frequently capped at a few thousand dollars or excluded outright, which is exactly why fast drying matters: preventing mold is cheaper and cleaner than claiming it. Read your policy's water and mold sections, or have someone read them with you, before you assume.

You are also expected to "mitigate" — take reasonable steps to prevent further damage. Drying fast is not just good practice; it is part of protecting the claim.

The storm-chaser warning

After a major Florida storm, out-of-state crews arrive in unmarked trucks offering immediate help. Some are legitimate restoration companies surging in to meet demand. Some are not. The pattern to watch for:

• No Florida license. Florida requires a licensed mold remediator for any job over 10 square feet (Chapter 468, Part XVI). An out-of-state crew often is not licensed here, and unlicensed work can void your insurance claim.
• Pressure to pay in full, in cash, today. Reputable companies do not demand full payment upfront before work begins.
• They want the insurance check signed over to them. Be cautious with "assignment of benefits" paperwork handed to you in the chaos — read it, and do not sign under pressure.
• They both "test" and "remove." In Florida, the same company generally cannot assess and remediate the same property within 12 months. A crew offering to do both is a red flag. Our mold scam red flags guide covers this in full.

The fix is simple and it is yours to control: verify the Florida license before you sign or pay. A real contractor will hand you their license number without hesitation, and you can check it against the state registry.

Quick first-48-hours checklist

• [ ] Stop the water source if safe; remove standing water
• [ ] Photograph and video everything before moving or discarding
• [ ] Notify your insurer; note the date and time
• [ ] Run AC and dehumidifiers; move air with fans
• [ ] Discard porous items soaked by contaminated water
• [ ] Dry solid/savable items within 24–48 hours
• [ ] Verify the Florida license of anyone you hire before paying

If the water was extensive or you suspect it reached inside walls or your HVAC system, bring in a licensed Florida professional. You can browse verified, license-checked remediators on MoldVerified, and you choose who calls — we never sell your number.

Sources: EPA "Mold Cleanup After a Flood," CDC mold guidance, Florida Statutes Chapter 468 Part XVI. Cost figures across this site reference our cost methodology, last refreshed June 2026.