Black mold in Tomball is removed the same way as other indoor mold: stop the moisture, then take out the growth and any porous material it has damaged. Small surface patches can be cleaned by the homeowner, while larger or hidden growth needs a Texas mold assessor and a different remediation company. Call the number on this page to be connected with a local mold remediation company in Tomball.

Tomball's water picture
Tomball is a small city of about 12,300 people in northwest Harris County, roughly 24 miles from downtown Houston, built around the railroad on SH 249 and FM 2920. It sits in the Spring Creek and Willow Creek watersheds. The Harris County Flood Control District listed Tomball among communities affected in the 2016 Tax Day flood, and during Hurricane Harvey water rose into homes near Spring, Willow, Mill and Walnut creeks. The city points out that homes outside the mapped 100-year floodplain can still flood, often from local stormwater ponding.
What to do now
- Fix the water first. Roof leak, plumbing drip, clogged AC drain or ponding against the slab: find it and stop it.
- Leave the growth undisturbed. Scrubbing dry mold off drywall releases spores into the room.
- Shut off the AC if growth is on vents or around the air handler.
- Keep sensitive people out. Anyone with asthma or a weakened immune system should stay away from the area, as EPA advises.
- Know the rebuild office. The City of Tomball Building Division issues permits online through its SmartGov portal, and the city's floodplain administrator handles floodplain questions.

Signs table
| What you see | Likely cause |
|---|---|
| Black edging along the base of exterior walls | Stormwater that ponded against the house and seeped in |
| Dark circle on a ceiling below the attic | AC drain pan overflow or roof leak |
| Spots on vent covers | Condensation where cold air meets humid air |
| Growth behind a bathroom vanity | Slow drain or supply-line leak |
| Mildewy closet with dark patches | Little airflow against an outside wall |
Cost factors
Angi's Houston cost data reports a mold removal average of $2,016 and a low-to-high range of $500 to $5,500. Square footage, drywall and insulation removal, duct involvement and access drive the number. Texas requires a mold assessment consultant who holds a TDLR license to write the protocol and a separate company with a TDLR mold remediation contractor license to do the removal, so you pay both. The consultant returns for a clearance check, and you receive a Certificate of Mold Damage Remediation within 10 days.
Black Mold Removal questions in Tomball
Do I need a permit to put the drywall back after removal?
My landlord will not fix the leak behind the black mold. What can I do?
Can I paint over black spots on a wall?
Why does Texas make me hire two separate companies?
More mold services in Tomball
Black Mold Removal nearby
Helpful guides
Sources
- EPA: Mold Cleanup in Your Home
- EPA: A Brief Guide to Mold, Moisture and Your Home
- TDLR: Mold Assessors and Remediators FAQs
- 16 Tex. Admin. Code 78.150: Photographs; Certificate of Mold Damage Remediation; Duty of Property Owner
- Angi: How much do mold removal services typically cost? (Houston, TX)
- Tex. Prop. Code 92.052: Landlord's Duty to Repair or Remedy
- Harris County Flood Control District: Spring Floods 2016
- City of Tomball: Floodplain Management
- City of Tomball: Building Permits
- City of Tomball: Building Division
- Community Impact: Tomball, Magnolia weather the storm, begin recovery
- Wikipedia: Tomball, Texas
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