Commercial mold remediation in Katy covers retail, restaurants, offices, churches and rental buildings, and the TDLR rules are the same in all three counties the city spans: a separate assessment consultant writes the protocol, and a company holding a TDLR mold remediation license removes larger areas. Call the number on this page to be connected with a local mold remediation company in Katy.

A three-county city
Katy sits where Harris, Fort Bend and Waller counties meet, about 19 miles from Houston along I-10, and it anchors a much larger suburban area with Katy Mills, the Grand Parkway and Kingsland Boulevard. The old railroad and rice-farming town survives in Old Towne Katy. Cane Island Creek, a branch of Buffalo Bayou, runs nearby, and the surrounding prairie drains slowly after heavy rain. Inside the city, permits come from the City of Katy; Katy-addressed property outside the limits falls under the county where it sits.
What to do now
- Find and fix the moisture. Roof leaks, plumbing and condensate overflows come first; without that, EPA says mold comes back.
- Dry within 24 to 48 hours wherever you can, and set aside soaked ceiling tile and carpet.
- Shut down any suspect air handler rather than spreading spores to other zones.
- Measure the area. At 25 contiguous square feet or more in a business, or in an apartment property with 10 or more units, the work needs a TDLR remediation license holder.
- Bring in the assessor, then a different company for removal, and check both on TDLR's license search.

Signs and their usual sources
| What you see | Likely cause |
|---|---|
| Spotted tiles under a rooftop unit | Condensate pan overflow or roof penetration leak |
| Musty odor in a restaurant back room | Walk-in cooler condensation or a dish-area leak |
| Bubbling paint on an exterior wall | Wind-driven rain getting behind the facade |
| Damp carpet edges after a storm | Water entering at a storefront door or slab joint |
Cost factors
The protocol sets the scope, and the scope sets the price. Area, ceiling height, removal of porous materials, duct work, containment and after-hours labor all count, along with the consultant's separate fee. Angi's Houston cost data for mold removal reports an average of $2,016, typically $863 to $3,329. City of Katy permits are required for all new construction, remodeling or roofing (281-391-4830), and Code Enforcement handles building maintenance complaints. For health questions, the county department depends on which side of the county lines the property sits; the Fort Bend side's Environmental Health division does not take mold complaints.
Commercial Mold Remediation questions in Katy
Why does Texas require two different companies on one mold job?
Can wet ceiling tiles and carpet be cleaned, or do they have to go?
Do we need a building permit for repairs after the mold is gone?
What does commercial mold remediation cost near Katy?
More mold services in Katy
Commercial Mold Remediation nearby
Helpful guides
Sources
- TDLR: Mold Assessors and Remediators FAQs
- TDLR: License Search
- EPA: Mold Remediation in Schools and Commercial Buildings (pdf)
- EPA: Mold Cleanup in Your Home
- Angi: How much do mold removal services typically cost? (Houston, TX)
- Fort Bend County Health & Human Services: Environmental Health service area
- City of Katy: Permits & Building Services
- City of Katy: Code Enforcement
- Wikipedia: Katy, Texas
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