Water damage restoration in Dallas
Here is what the water risk in Dallas looks like on the federal record, and what the first 48 hours ask of you.
What usually causes it in Dallas
- 23 nights a year below freezing — few enough that plumbing is rarely built around it, and cold enough that it happens.
- Water from outside is a real route here — FEMA rates Dallas County for hurricane and coastal flooding, so CDC's floodwater rules apply if that is what came in.
The figures behind this, with sources
- Inland flood risk
- Very High
- Hurricane risk
- Relatively Low
- Flood events a year, county-wide
- 4.6
- Expected flood damage to buildings, county-wide, a year
- $316M
- Nights below freezing, a year
- 23
- Yearly rainfall
- 37.57"
- Homes built before 1980
- 34.5%
- Rented homes
- 57.6%
FEMA National Risk Index, county level · NOAA NCEI, 1991–2020 U.S. Climate Normals · U.S. Census Bureau, ACS 5-year 2019–2023, tables B25034 and B25003. County-level ratings describe the county, not your address.
What the record says about Dallas
Two different things put water in a Dallas house, and they need different answers. Most of the year it is a pipe or an appliance — clean water, under pressure, spreading sideways under flooring. A few times a winter it is a hard freeze finding plumbing that was never built for one.
Slab-on-grade construction is common here, and it changes where the water goes. There is no crawl space to drain into, so water runs along the slab under floating floors and into wall bases, and the wet area is almost always wider than it looks.
The other case is storm water. FEMA rates Dallas County Very High for inland flooding, and if that is what came in, it is no longer a drying job — CDC's guidance on water from outdoors applies instead.
Figures from FEMA National Risk Index and NOAA NCEI 1991–2020 Climate Normals, checked 2026-10-16. County-level ratings describe the county, not your address.
The first 48 hours in Dallas
The hours come from EPA and CDC, and they do not change with the weather.
- 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.
Dallas questions
Why is Dallas rated Very High for flooding when it is nowhere near the coast?
FEMA's inland flooding rating is about river, creek and stormwater flooding rather than storm surge, and it weighs how much is exposed as well as how often it happens. Dallas County combines frequent flood events with a very large amount of built property, which is what pushes the rating up. The rating is per county, not per street — your own address may sit well outside any mapped floodplain.
Does a hard freeze count as water damage?
It is one of the most common causes of it. A split supply line releases clean water under pressure, and the volume depends entirely on how long it runs before anyone notices. The drying clock is the same as for any other clean water: EPA puts it at 24 to 48 hours.
The floor dried overnight. Is that the end of it?
Only if the material underneath dried too. Slab-on-grade construction, common across the Dallas area, puts flooring directly onto concrete, and water that gets under a floating floor or into a subfloor seam dries far more slowly than the surface above it. That is a moisture reading question, not a touch test.
The leak is under a slab floor. Does that change anything?
It changes how the water is found and how long drying takes. Slab-on-grade construction is common across the Dallas area, and water that gets under a floating floor or into a seam spreads sideways with nothing to stop it. Finding the edge of the wet area is a meter job, not a look-and-see job.
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.