Highlands sits on the higher east bank of the San Jacinto River, yet homes near the water have still flooded, and mold remediation here often follows that kind of event or a leak left too long. Texas requires a mold assessment consultant to plan and clear the job and a separate company to do the removal. Call the number on this page to be connected with a local mold remediation company in Highlands.

Local conditions in Highlands
Highlands is an unincorporated community in east Harris County, about 24 miles from downtown Houston, between the San Jacinto River and the industry along the Houston Ship Channel. It began as an early-1900s rail stop and grew during World War II, when it housed military members and war-plant workers. In an October 2015 storm, an EF-0 tornado closed FM 2100 and the San Jacinto rose about six feet above normal, flooding some homes near the river. Even without high water, Gulf humidity and months of air conditioning bring condensation to attics, ducts and window frames, and flat clay ground holds rainwater against foundations. Neighborhoods off Main Street, East Wallisville Road and Interstate 10 all share that climate, whatever their distance from the river. For residents, the practical point is that a home does not need to flood to need remediation; a hidden roof leak or a dripping air handler in a closed-up room does the same damage more slowly.
Homeowner cleanup or a professional job?
| Situation | Homeowner cleanup | Professional remediation |
|---|---|---|
| Mildew on grout or a window sill | Reasonable | Rarely needed |
| Patch under about 10 sq ft, leak fixed | EPA says usually fine | Optional |
| Growth inside walls or under flooring | Hard to reach without spreading it | Recommended |
| River or storm water soaked the house | Not advised | Recommended, with an assessment first |
| Mold in ducts or the air handler | Not advised | Recommended |
Texas lets homeowners clean their own homes without a license. Anyone you pay to remediate must hold a TDLR mold remediation license, and the assessment must come from a different company.

Signs to watch
- Stains climbing from the floor on walls that faced river water
- Peeling paint and swollen door trim
- A sour, earthy smell in rooms kept closed
- Specks around AC supply vents
Timing and seasons
Spring and fall storms and the hurricane season carry the biggest risk of river flooding. Dry wet areas within 24 to 48 hours, as EPA advises, and wear at least an N-95 respirator if you handle moldy debris yourself. After a large job, rebuilding needs a permit from the Harris County Office of the County Engineer; work in the 100-year floodplain needs drawings sealed by a Texas architect or engineer, and no fill is allowed in a floodway.
Mold Removal & Remediation questions in Highlands
How soon does mold start after water gets in?
How do I find out whether my home is in a flood zone?
Can the same company inspect my home and remove the mold?
Do I have to tell a buyer about past mold remediation?
More mold services in Highlands
Mold Removal & Remediation nearby
Sources
- EPA: Mold Cleanup in Your Home
- EPA: Homeowner's and Renter's Guide to Mold Cleanup After Disasters (pdf)
- TDLR: Mold Assessors and Remediators FAQs
- 16 Tex. Admin. Code 78.150: Photographs; Certificate of Mold Damage Remediation; Duty of Property Owner
- Harris County Office of the County Engineer: Permits FAQ
- Star-Courier: Tornado hits Highlands, flooding in Crosby
- Wikipedia: Highlands, Texas
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