Mold Remediation & Assessment in Texas

915 certified mold remediation firms on file in Texas, including 620 holding a current Texas mold licence. Credentials below are verified against the Texas Department of Licensing and Regulation (TDLR) and IICRC's Certified Firm registry.

Texas licenses mold work. Companies and individuals must be licensed for 25 contiguous square feet of mold (licence required for remediation above this; assessment has no such exemption). A license holder may not perform both mold assessment and mold remediation on the same project — Tex. Occ. Code §1958.155(a), with a common-ownership bar at §1958.155(b). The assessor's document the statute requires is a written work analysis (§1958.151); the remediator prepares the work plan (§1958.152). Full Texas licensing rules →

Cities with 3+ certified firms

Houston124San Antonio62Austin44Dallas42Fort Worth22Plano21Cypress17Carrollton15Spring14Haltom City12El Paso12Abilene11Katy10Conroe10Garland10Arlington10Mckinney9Lubbock9Lewisville8Rowlett7Georgetown7Magnolia7Richardson6North Richland Hills6Boerne6Irving6Cedar Park6League City6Frisco6Rockwall6Mansfield6Beaumont5Amarillo5College Station5San Marcos5Mesquite5Grapevine5Lancaster5Leander5Harlingen5Grand Prairie5Buda5Stafford5Waco5Southlake4Tomball4Round Rock4Pflugerville4Wichita Falls4Waxahachie4Bryan4Coppell4Tyler4Kingwood4Corpus Christi4Denton4Hutto4Humble4Benbrook3Argyle3Alton3Addison3Helotes3Crandall3Decatur3Liberty Hill3New Braunfels3Montgomery3Pearland3Missouri City3Rosenberg3Royse City3The Woodlands3Wylie3

Also served (1–2 firms)

Baton Rouge, Anna, Birmingham, Bedford, Colleyville, Comfort, Dripping Springs, Crowley, Celina, Groves, Flower Mound, Euless, Pasadena, Odessa, Porter, Port Neches, Port Arthur, Saint Louis, Reno, Princeton, Richmond, Salado, Shreveport, Webster, Troy, Tampa, Sugar Land, South Houston, La Feria, Lago Vista, Leming, Kaufman, Minneapolis, Naples, Manor, Laredo, Greenwood Village, Bandera, Avalon, Aubrey

What Texas mold remediation firms are certified in

Certification counts across the 915 Texas firms on file for this work. These are the credentials on record with the issuing body — not what the firms advertise.

CredentialWhat it coversTexas firms
WRTWater Damage Restoration Technician300
ASDApplied Structural Drying Technician242
FSRTFire and Smoke Damage Restoration Technician222
AMRTApplied Microbial Remediation Technician215
OCTOdor Control Technician147
CCTCarpet Cleaning Technician112

265 of these firms hold three or more certifications; 186 appear in two independent registries and carry a cross-verified marker; 107 operate under a national franchise brand, which is separately owned and separately credentialled from the brand itself.

Texas mold law: tenant rights, disclosure & insurance →

Every Texas firm we hold a record for, A–Z by city →

Mold Remediation in Texas: common questions

Do I need a licensed mold remediation contractor in Texas?

Texas requires a licence for 25 contiguous square feet of mold (licence required for remediation above this; assessment has no such exemption) (Tex. Occ. Code §1958.102(c)), issued by Texas Department of Licensing and Regulation (TDLR). A license holder may not perform both mold assessment and mold remediation on the same project — Tex. Occ. Code §1958.155(a), with a common-ownership bar at §1958.155(b). The assessor's document the statute requires is a written work analysis (§1958.151); the remediator prepares the work plan (§1958.152).

What certifications do Texas mold remediation firms actually hold?

Across the 915 Texas firms on file for this work, the most common credentials are WRT (Water Damage Restoration Technician) held by 300 firms, ASD (Applied Structural Drying Technician) held by 242 firms, FSRT (Fire and Smoke Damage Restoration Technician) held by 222 firms, AMRT (Applied Microbial Remediation Technician) held by 215 firms. 265 hold three or more certifications. Certification describes verified training rather than the services a firm chooses to advertise.

How were these Texas firms verified?

Every certification was checked against IICRC's own Certified Firm registry, and every licence against the Texas Department of Licensing and Regulation (TDLR) file, not against the firm's marketing. 186 of the 915 appear in two independent registries and carry a cross-verified marker. Checked August 14, 2026. Where a state publishes only current licensees, a firm absent from that file is reported as absent — never as unlicensed.

Which Texas cities have the most mold remediation firms?

Houston leads with 124, followed by San Antonio (62), Austin (44), Dallas (42). We build a page wherever a city has three or more certified firms; smaller markets are listed below that without their own page.