If a South Houston home took water from a heavy storm or a failed pipe and the walls or floors stayed wet beyond a day or two, mold removal means cutting out the soaked porous materials and cleaning the framing under a Texas protocol. One company assesses and a different company removes. Call the number on this page to be connected with a local mold remediation company in South Houston.
About South Houston
South Houston is a small city of about 16,000 people, roughly 16 miles from downtown Houston, bordered by Houston and Pasadena and incorporated in 1913. Manufacturing moved in after the Ship Channel was built, and a 1915 hurricane destroyed many of the local industries. Homes along Spencer Highway, Old Galveston Road, Allen Genoa Road and South Shaver Street sit on the flat, clay-heavy ground typical of southeast Harris County, where a tropical downpour can leave yards and streets under water for hours. Inside, water most often arrives through a damaged roof, under a door during a storm, or from a supply line or water heater that fails.
What to do now
- Shut off the water source or wait until it is safe to go back in.
- Start drying right away; EPA advises drying wet materials within 24 to 48 hours.
- Take photos of the waterline, flooring and damaged belongings.
- Move rugs, cushions and boxes out of wet rooms.
- Leave the central air off if water reached the air handler or ductwork.
- If walls stayed wet past that window, call for a mold assessment before closing anything up.
- Hire a separate company that holds a TDLR mold remediation contractor license to follow the consultant's protocol.
What you see and what it means
| What you see | Likely cause |
|---|---|
| Brown edges on carpet and a sour smell | Pad and subfloor still holding water |
| Drywall stained in a band above the baseboard | Water wicking upward; mold often starts in the cavity first |
| Spots on the inside of a sink base | A slow plumbing leak or water that pooled under cabinets |
| Fresh mildew on window sills and trim | Indoor humidity well above the 60 percent EPA recommends |
Cost factors
Angi's Houston cost data reports mold removal at $863 to $3,329 for most jobs, averaging $2,016. National figures (HomeGuide, 2026) list $500 to $1,500 for a small 10 to 100 square foot area and $1,500 to $6,000 for 100 to 300 square feet. Cost depends on how many square feet stayed wet, how fast drying began, cabinets or vanities in the way, containment, and the separate fees of the assessment consultant, since Texas does not let one company do both jobs. Before rebuilding walls or floors, check with the City of South Houston about permits.
Post-Flood Mold Removal questions in South Houston
Can wet drywall and insulation be dried and kept?
Should I run the air conditioning after water comes in?
Does the county health department take mold complaints?
What happens if the clearance check fails?
More mold services in South Houston
Post-Flood Mold Removal nearby
Sources
- EPA: Homeowner's and Renter's Guide to Mold Cleanup After Disasters (pdf)
- EPA: Mold Cleanup in Your Home
- EPA: A Brief Guide to Mold, Moisture and Your Home
- TDLR: Mold Assessors and Remediators FAQs
- Angi: How much do mold removal services typically cost? (Houston, TX)
- HomeGuide: How Much Does Mold Removal and Remediation Cost? (2026)
- Harris County Public Health: Neighborhood Nuisance
- Wikipedia: South Houston, Texas
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