If mold in a Highlands shop, church or rental building covers 25 contiguous square feet or more, Texas requires a company holding a TDLR mold remediation license to remove it, following a protocol from a different firm that does the assessment. Smaller areas may be handled by the owner or employees. 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 industrial east Harris County, about 24 miles from downtown Houston, on the higher east bank of the San Jacinto River. It began as an early-1900s railway stop and grew during World War II, housing military members and war-plant workers. Small businesses cluster along Main Street, FM 2100, East Wallisville Road and Interstate 10. Higher ground does not make the area immune: during an October 2015 storm, an EF-0 tornado closed FM 2100 and the San Jacinto River rose about six feet above normal, flooding some homes near the river. For commercial buildings, the more common trouble is roof damage after wind, including the kind of storm that spun up that tornado, water entering through damaged flashing, and AC equipment working hard against humid river air.
Working hours versus after-hours remediation
| Approach | When it fits | Trade-offs |
|---|---|---|
| Daytime work with the area sealed off | The affected room can be closed and served by its own air handler | Lower labor cost; noise and restricted access during business hours |
| Nights and weekends | Retail floors, offices or sanctuaries that must stay open | Less disruption; higher labor rates and a longer calendar |
| Full closure | Contamination spread through the HVAC system or several rooms | Fastest finish; lost business days |
The assessment consultant's protocol sets containment and clearance criteria; the remediation company's work plan sets the schedule. Texas does not let one firm fill both roles on the same project.

Signs of trouble
- Fresh ceiling stains after a windstorm or heavy rain
- Mold on the paper face of drywall behind stored goods
- A wet, musty smell in a closed storage room or fellowship hall
- Water standing in an AC drain pan or overflow tray
Seasonal timing
Summer and early fall bring the heaviest tropical rain and the longest AC run times, so many commercial calls come then. After any leak or flood, EPA says to dry materials within 24 to 48 hours. Once the job is done and walls need rebuilding, unincorporated Highlands falls under the Harris County Office of the County Engineer, which requires a permit for development, with sealed drawings for work in the 100-year floodplain.
Commercial Mold Remediation questions in Highlands
Can the work be done at night or on weekends?
Can our own maintenance staff clean up a small mold problem?
How fast should we act after a roof leak or flood?
Who confirms the remediation actually worked?
More mold services in Highlands
Commercial Mold Remediation nearby
Sources
- TDLR: Mold Assessors and Remediators FAQs
- TDLR: Texas Mold Assessors and Remediators Law
- EPA: Mold Cleanup in Your Home
- EPA: Mold Remediation in Schools and Commercial Buildings (pdf)
- Harris County Office of the County Engineer: Permits FAQ
- Star-Courier: Tornado hits Highlands, flooding in Crosby
- Wikipedia: Highlands, Texas
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