24–48 hours
Water damage is a deadline, not a mess
EPA puts it in one sentence: material dried within 24 to 48 hours of a leak will, in most cases, not grow mold. Past that, the job changes. Here is what the clock looks like, and who near you can work against it.
Start 2-minute checkRead the 48-hour guide
Independent providers, not our own crews. Nothing is charged for asking.
What the first 48 hours do
Four stretches, each with a different question in it. The hours are EPA and CDC figures, not ours.
- 0–2 h
Safety first, then the source
- If there is standing water and the main power switch is reachable from a dry spot, CDC says to turn the power off. If you would have to step into the water to reach it, call an electrician instead.
- 2–24 h
Water out, air moving
- CDC: clean up and dry out the building fully and quickly, within 24 to 48 hours of the flood.
- 24–48 h
The window is still open
- EPA: if wet or damp materials or areas are dried 24 to 48 hours after a leak or spill happens, in most cases mold will not grow.
- 48+ h
A different job now
- Past this point the question changes from drying to what has already grown.
- EPA puts the line at about 10 square feet: under roughly a 3 ft by 3 ft patch, in most cases a homeowner can handle the job; above it, the guidance is different.
How this works
You answer three short questions about what happened. Before we ask for anything, the site shows you what federal guidance says to do for your kind of water — clean, grey or sewage — because that part is useful whether or not you leave a number.
If you do leave one, it goes to an independent provider who covers your ZIP code, and they contact you directly. We are not a contractor and we do not carry out restoration work. We also do not check anyone's licensing for you: requirements differ by state and by city, and that is worth asking about yourself.
Questions people ask
How long do I actually have?
EPA puts it plainly: if wet or damp materials are dried 24 to 48 hours after a leak or spill happens, in most cases mold will not grow. CDC says the same thing about floods — clean up and dry out fully and quickly, within 24 to 48 hours. That window is the whole reason this site is built around a clock.
Is drying it myself an option?
Sometimes. EPA sets a rough line at about 10 square feet — under roughly a 3 ft by 3 ft patch, in most cases a homeowner can handle the job. Above that, or when water has gone into subfloor, insulation or wall cavities, the limit is usually equipment rather than effort: surfaces feel dry long before the material behind them is.
What if the water came from a sewer or from outside?
Then the advice changes from drying to staying out of it. CDC says nobody knows exactly what is in floodwater at any given time, that it can carry human and livestock waste, hazardous waste and coal ash containing arsenic, chromium and mercury, and that its guidance is to stay out of the water. If you must enter it, CDC says to wear rubber boots, rubber gloves and goggles.
Who turns up, and what does this site do?
We are a referral service: we pass what you tell us to an independent restoration provider who covers your ZIP code, and they contact you. We do not carry out the work, we are not a contractor, and we do not verify anyone’s licensing on your behalf.
Does it cost anything to ask?
Sending the form costs nothing and commits you to nothing. What the work itself costs depends on how much is wet and what has to come out, which is covered on the cost page with published national ranges and the source next to each one.
Where this comes from
- EPA — A Brief Guide to Mold, Moisture and Your Home — Where the 24 to 48 hour drying window and the 10-square-foot rule of thumb come from.
- CDC — About Mold — Federal guidance to clean up and dry out fully within 24 to 48 hours of a flood.
- CDC — Safety Guidelines: Floodwater — What floodwater can carry, and why the advice is to stay out of it.
- CDC — Safety Guidelines: Reentering Your Flooded Home — Power, gas and when not to go back inside.
- FEMA — National Risk Index — County-level flood, hurricane and riverine risk used on the city pages.