La Porte sits on the northwest shore of Galveston Bay, and its many small 1940s frame houses, bay humidity and hurricane history make mold remediation a common need. In Texas, a mold assessment consultant writes the plan and checks the result while a separate company does the removal. Call the number on this page to be connected with a local mold remediation company in La Porte.

A bayfront town
La Porte is about 25 miles southeast of downtown Houston, next to the Port of Houston's Bayport Terminal and near the mouths of the San Jacinto River and the Houston Ship Channel. Hurricanes in 1900, 1915 and 1943 battered the old Sylvan Beach resort and its attractions. The city is known for its many small 1940s frame houses. Pier-and-beam construction, common in older homes around the region, lets damp air reach floor framing, and salty, humid air off the bay keeps everything slow to dry. Neighborhoods such as Lomax and the streets around Fairmont Parkway and State Highway 146 share that climate. Small frame houses have less room to hide a leak, but they also have less margin: one wet wall can be a large share of the living space.
What to do now
- Find the water. Check the roof, windows facing the bay, plumbing lines and the AC drain.
- Dry the area within 24 to 48 hours if you can.
- Do not paint or caulk over growth; EPA advises against it.
- Get a mold assessment from a consultant who holds a TDLR license.
- Choose a separate remediation company and confirm it on TDLR's license search.
- For structural or drywall repairs, contact the City of La Porte Inspection Services Division, which handles building permits and plan review.

Signs and likely causes
| What you see | Likely cause |
|---|---|
| Soft or stained floorboards | Damp air under a raised floor, or a plumbing leak |
| Mold around window frames | Condensation or wind-driven rain |
| Spotty ceiling after a storm | Roof leak or failed flashing |
| Musty closet on an outside wall | Poor airflow plus high humidity |
What drives cost
HomeGuide's 2026 national ranges are $500 to $1,500 for a small area, $1,500 to $6,000 for 100 to 300 square feet, and roughly $15 to $30 per square foot overall. Angi's Houston cost data adds a local average of $2,016. Older frame homes can cost more when growth reaches framing or subflooring, because the assessor may call for cleaning or replacing structural wood. Every job also carries a separate fee from the assessor for the protocol and the clearance visit, and any repairs afterward are their own budget line.
Mold Removal & Remediation questions in La Porte
Can I just paint or caulk over the mold?
Is mold testing needed if I can already see the growth?
My landlord has not fixed the leak behind the mold. What can I do?
Does TDLR have to be told about my remediation project?
More mold services in La Porte
Mold Removal & Remediation nearby
Helpful guides
Sources
- EPA: Mold Cleanup in Your Home
- EPA: Mold Information Slideshow (testing and sampling)
- TDLR: Mold Assessors and Remediators FAQs
- TDLR: License Search
- TDLR: Texas Mold Remediation Notification Requirements
- Tex. Prop. Code 92.052: Landlord's Duty to Repair or Remedy
- TexasLawHelp: Mold and Renter's Rights in Texas
- Angi: How much do mold removal services typically cost? (Houston, TX)
- HomeGuide: How Much Does Mold Removal and Remediation Cost? (2026)
- City of La Porte: Building Permit Services
- City of La Porte: Code Enforcement
- Wikipedia: La Porte, Texas
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