Water damage · Emergency service
Flood damage cleanup in Houston, TX
Flood cleanup treats outside floodwater as contaminated: it removes water and mud, cuts out wet drywall and insulation above the waterline, sanitizes, and dries the structure. Floodwater carries sewage and chemicals, so porous materials it touched are usually discarded.

Flood damage cleanup in Houston: local conditions
Houston floods from the bayous. Brays, White Oak, Buffalo and Greens Bayous and their tributaries rise quickly in heavy rain, and neighborhoods like Meyerland and parts of the Heights and Kingwood have flooded repeatedly, including during Hurricane Harvey in 2017. Floodwater is treated as Category 3, so drywall and insulation below the waterline usually come out.
The city's flat terrain and clay soils mean street flooding can push water into garages and slab homes even outside mapped floodplains. Many Houston flood claims come from outside the FEMA high-risk zones.
Houston's humidity makes drying harder and mold faster. Flood cuts, antimicrobial treatment and dehumidifiers sized for Gulf Coast air should start as soon as the water recedes.
What you can expect
- One call connects you with an independent restoration company that serves your ZIP code.
- Fast call-back during business hours
- Serving Houston, TX
- Photo and moisture documentation for insurance
Flood damage cleanup at a glance
- Category
- Water damage
- Emergency service
- Yes, call for fastest response
- Typical first step
- Make safe
- Area
- Houston, TX
Other water risks in Houston
Bayou and street flooding
Brays, White Oak, Buffalo and Greens Bayous overflow in major storms, and flat streets flood in heavy rain even outside mapped floodplains. Hurricane Harvey in 2017 flooded neighborhoods across the city.
Humidity and mold
High year-round humidity means wet materials grow mold quickly, and sweating AC ducts cause mold even without leaks.
Hurricane season
From June through November, tropical systems bring wind-driven rain, roof damage and power outages that leave homes without AC to control humidity.
Subsidence and old sewer lines
Decades of groundwater pumping caused subsidence across the Houston area. Combined with shifting clay, that movement cracks older cast-iron and clay sewer lines under slab homes, which leads to backups and slow under-slab leaks.
Signs you need flood damage cleanup
- Water entered from outside, at doors or through the slab
- A visible waterline on walls
- Mud or debris left on floors
- Wet insulation inside lower walls
- Odor of sewage or fuel
How the work is done
- 1
Make safe
Power is confirmed off in flooded areas, and crews wear protective gear for contaminated water.
- 2
Remove water and debris
Pumps and extractors remove water, and mud and saturated contents are removed and documented.
- 3
Flood cuts and sanitizing
Drywall and insulation are cut above the waterline; framing and slab are cleaned and treated with antimicrobial.
- 4
Dry and verify
Structural drying runs until framing meets dry standards, then rebuild can begin.
What affects the cost
Prices depend on the job, so restoration companies in Houston quote after an assessment. The main drivers are how much area is affected, how long it stayed wet, and what has to be removed or rebuilt. See the full list of flood damage cleanup cost factors.
What to do right now
Safe to do yourself
- Stay out of standing floodwater until power is confirmed off
- Photograph the waterline and all damaged items
Call a professional if…
- Any outside floodwater entered the home
- Water reached outlets or HVAC equipment
Flood damage cleanup questions
Do I need flood insurance in Houston if I'm outside the floodplain?
It's worth considering. A large share of Houston homes flooded during Harvey were outside the 100-year floodplain. Standard homeowners policies exclude rising water, and NFIP policies typically take 30 days to take effect.
Does the City of Houston require a permit to repair flood damage?
Yes, for most rebuild work. Homes in the floodplain that were substantially damaged may also need to meet elevation requirements, so check with the City of Houston's floodplain management office before rebuilding.
Is flood damage covered by homeowners insurance?
Usually not. Rising water from outside is typically covered only by a flood policy (NFIP or private). Water from a burst pipe is a different claim under your homeowners policy.
Can drywall that got flood water be dried?
Generally no. Floodwater is contaminated, so the IICRC S500 standard calls for removing porous materials it soaked, including drywall and insulation, above the waterline.
More about water and storm damage in Houston, or see flood damage cleanup across Texas.
Related services

Emergency water extraction
Water extraction is the first step of any water loss: removing standing and absorbed water with powerful pumps and extractors before drying starts.
Learn more
Sewage backup cleanup
Sewage cleanup treats the water as Category 3 (grossly contaminated): crews in protective gear remove it, discard porous materials it touched, clean and disinfect hard surfaces, and dry the structure.
Learn more
Mold remediation
Mold remediation removes mold growth under containment so spores don't spread, cleans or discards affected materials, and corrects the moisture problem that let it grow.
Learn moreWater, mold or fire damage? Get the right crew on it.
One call connects you with an independent restoration company that serves your ZIP code. Fast call-back during business hours.
