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Licensed Mold Testing Companies in Houston, TX

57 mold testing (mold assessment) companies serve Houston, and every one holds a current Texas license, checked against TDLR on Oct 28, 2026. Compare Google reviews, then call two or three.

Area report · HoustonACO
Testing companies
57 licensed in the area
Based in Houston
34
Google reviews
39 of 57 matched
License check
TDLR Oct 28, 2026
Same-job rule
Hire mold removal separately
See the 57 companiesNeed mold removal? 114 licensed companies
Who's listed

Every licensed company based in the Houston area (Harris, Montgomery, Fort Bend, Galveston, Waller and Brazoria counties), with companies based in Houston first. Out-of-state license holders are on the statewide list.

How it's ranked

By Google reviews, with a pull toward average until a company has enough of them; companies without reviews follow, A to Z. Nobody can pay to move up.

What we checked

Each company's mold assessment company license is current in TDLR records. We don't verify insurance or work quality: how we verify.

Based in Houston

Licensed mold testing companies with a Houston address, ranked.

  1. Smith Group Mold Services LLC

    Houston, Harris County · TDLR #ACO1313 · licensed until Apr 19, 2028

    Google listing: Smith Group Property Inspections

    Current license

    5.01549 Google reviews

    Call (281) 734-3118WebsiteLicense report

  2. Redfish Inspections, LLC

    Houston, Harris County · TDLR #ACO1237 · licensed until Dec 4, 2027

    Current license

    4.91514 Google reviews

    Call (713) 568-8184WebsiteLicense report

  3. Texas Mold Specialists

    Houston, Harris County · TDLR #ACO1272 · licensed until Mar 25, 2027

    Current license

    4.969 Google reviews

    Call (713) 682-0133WebsiteLicense report

  4. Mundae Cleaning & Restoration

    Houston, Harris County · TDLR #ACO1120 · licensed until Aug 16, 2027

    Google listing: Mundae Cleaning & Restoration - Downtown Houston

    Current licenseAlso licensed for mold removal: by law, not on the same project

    4.8290 Google reviews

    Call (713) 777-7700WebsiteLicense report

  5. Sczw Services LLC DBA ALM Mold Inspection

    Houston, Harris County · TDLR #ACO1284 · licensed until Jun 17, 2027

    Google listing: The Restoration Girl Houston

    Current license

    5.012 Google reviews

    Call (713) 714-7312WebsiteLicense report

  6. Super MAC Environmental Solutions LLC

    Houston, Harris County · TDLR #ACO1290 · licensed until Jul 16, 2027

    Current license

    5.08 Google reviews

    Call (240) 595-5684WebsiteLicense report

  7. ERC Environmental & Construction Services Inc DBA ERC

    Houston, Harris County · TDLR #ACO0147 · licensed until Feb 3, 2028

    Google listing: ERC Environmental & Construction Services, Inc.

    Current license

    5.06 Google reviews

    Call (713) 290-9444WebsiteLicense report

  8. TGE Resources, Inc

    Houston, Harris County · TDLR #ACO0123 · licensed until Jan 8, 2028

    Current license

    5.05 Google reviews

    Call (713) 744-5876WebsiteLicense report

  9. Honesty Environmental Services Inc

    Houston, Harris County · TDLR #ACO0132 · licensed until Jan 12, 2028

    Current license

    4.719 Google reviews

    Call (713) 856-5354WebsiteLicense report

  10. Cypress Environmental Consulting LLC

    Houston, Harris County · TDLR #ACO1181 · licensed until Dec 21, 2026

    Current license

    5.03 Google reviews

    Call (281) 640-4475WebsiteLicense report

  11. Phase Engineering LLC

    Houston, Harris County · TDLR #ACO0192 · licensed until Apr 7, 2027

    Current license

    4.713 Google reviews

    Call (713) 476-9844WebsiteLicense report

  12. Microbiology Specialists Incorporated

    Houston, Harris County · TDLR #ACO1117 · licensed until Mar 16, 2027

    Current license

    4.84 Google reviews

    Call (713) 663-6888WebsiteLicense report

  13. Lead Paint Inspection

    Houston, Harris County · TDLR #ACO1179 · licensed until Oct 29, 2026

    Google listing: Lead Paint Inspection Svc

    Current license

    5.01 Google review

    Call (832) 840-7887License report

  14. Tmic Environmental Consultants, LLC

    Houston, Harris County · TDLR #ACO1268 · licensed until Jan 22, 2027

    Current license

    5.01 Google review

    Call (832) 373-1670WebsiteLicense report

  15. UES Professional Solutions 64, LLC

    Houston, Harris County · TDLR #ACO1277 · licensed until May 4, 2027

    Google listing: UES

    Current license

    4.47 Google reviews

    Call (281) 580-8892WebsiteLicense report

  16. ATC Group Services LLC

    Houston, Harris County · TDLR #ACO0134 · licensed until Jan 13, 2028

    Google listing: ATC

    Current license

    4.313 Google reviews

    Call (346) 227-7971License report

  17. Environmental Solutions, Inc

    Houston, Harris County · TDLR #ACO0143 · licensed until Mar 15, 2028

    Current license

    4.04 Google reviews

    Call (713) 934-9944WebsiteLicense report

  18. Turnstone EH&S Inc

    Houston, Harris County · TDLR #ACO1100 · licensed until Oct 2, 2028

    Current license

    3.84 Google reviews

    Call (281) 470-0708WebsiteLicense report

  19. QC Laboratories Inc

    Houston, Harris County · TDLR #ACO1047 · licensed until May 21, 2027

    Current license

    3.76 Google reviews

    Call (713) 695-1133License report

  20. ECS Southwest LLP

    Houston, Harris County · TDLR #ACO1212 · licensed until Jun 5, 2028

    Current license

    3.69 Google reviews

    Call (832) 993-6476WebsiteLicense report

  21. EFI Global LLC

    Houston, Harris County · TDLR #ACO0126 · licensed until Jan 5, 2028

    Current license

    2.84 Google reviews

    Call (832) 518-5145WebsiteLicense report

  22. Teva Enterprises LLC

    Houston, Harris County · TDLR #ACO1308 · licensed until Mar 17, 2028

    Google listing: Motiva Enterprises LLC

    Current license

    2.210 Google reviews

    Call (888) 673-0888WebsiteLicense report

  23. Agile Environmental LLC

    Houston, Harris County · TDLR #ACO1130 · licensed until Jun 17, 2028

    Google listing: Mold Remediation Services

    Current licenseAlso licensed for mold removal: by law, not on the same project

    No Google reviews matched

    Call (832) 512-3132WebsiteLicense report

  24. Codenviron LLC

    Houston, Harris County · TDLR #ACO1234 · licensed until Jul 30, 2027

    Current license

    No Google reviews matched

    Call (346) 558-6796License report

  25. Environmental Consultants International, LLC

    Houston, Harris County · TDLR #ACO1178 · licensed until Oct 19, 2028

    Current license

    No Google reviews matched

    Call (713) 344-1300WebsiteLicense report

  26. Fern Environmental LLC

    Houston, Harris County · TDLR #ACO1147 · licensed until Dec 16, 2026

    Current license

    No Google reviews matched

    Call (832) 797-3059WebsiteLicense report

  27. FIG Services LLC

    Houston, Harris County · TDLR #ACO1129 · licensed until Nov 4, 2027

    Current license

    No Google reviews matched

    Call (832) 279-1960License report

  28. Fivefold Ventures LLC

    Houston, Harris County · TDLR #ACO1301 · licensed until Dec 17, 2027

    Current license

    No Google reviews matched

    Call (346) 829-6369License report

  29. Mecx Inc

    Houston, Harris County · TDLR #ACO1080 · licensed until Mar 8, 2028

    Current license

    No Google reviews matched

    Call (713) 585-7000WebsiteLicense report

  30. Mold BAD Mold LLC

    Houston, Harris County · TDLR #ACO1116 · licensed until Mar 9, 2027

    Current license

    No Google reviews matched

    Call (281) 782-7966WebsiteLicense report

  31. PSI

    Houston, Harris County · TDLR #ACO0199 · licensed until Jul 16, 2028

    Current license

    No Google reviews matched

    Call (832) 259-6336License report

  32. Rimkus Consulting Group Inc

    Houston, Harris County · TDLR #ACO0115 · licensed until Oct 29, 2027

    Current license

    No Google reviews matched

    Call (210) 647-8400License report

  33. Sitex Inc.

    Houston, Harris County · TDLR #ACO0164 · licensed until Mar 10, 2028

    Current license

    No Google reviews matched

    Call (713) 782-4411WebsiteLicense report

  34. Tonerco LLC

    Houston, Harris County · TDLR #ACO1286 · licensed until Jun 18, 2027

    Current license

    No Google reviews matched

    Call (832) 878-2914License report

Elsewhere in the Houston area

Licensed companies based in the rest of the metro. A Texas license is good statewide; ask each one whether it covers your address.

  1. HTX Home Inspections

    League City, Galveston County · TDLR #ACO1316 · licensed until Jul 6, 2028

    Current license

    5.01353 Google reviews

    Call (832) 425-8826WebsiteLicense report

  2. Houston Home Inspections, PLLC

    Magnolia, Montgomery County · TDLR #ACO1201 · licensed until Dec 26, 2027

    Google listing: Houston Inspections

    Current license

    5.0473 Google reviews

    Call (713) 408-1129WebsiteLicense report

  3. Kingdom Inspections LLC

    Conroe, Montgomery County · TDLR #ACO1310 · licensed until Mar 26, 2028

    Current license

    5.080 Google reviews

    Call (804) 420-7504WebsiteLicense report

  4. 1st Rate Inspections

    Cypress, Harris County · TDLR #ACO1144 · licensed until Mar 7, 2028

    Current license

    4.92399 Google reviews

    Call (832) 567-5791WebsiteLicense report

  5. Noble Property Inspections, PLLC

    Missouri City, Fort Bend County · TDLR #ACO1314 · licensed until Apr 20, 2028

    Current license

    4.91261 Google reviews

    Call (832) 551-1397WebsiteLicense report

  6. Reagan Environmental

    Montgomery, Montgomery County · TDLR #ACO1253 · licensed until Apr 9, 2028

    Current license

    4.972 Google reviews

    Call (832) 623-4889WebsiteLicense report

  7. Thorough Point Inspections

    Porter, Harris County · TDLR #ACO1307 · licensed until Feb 26, 2028

    Current license

    5.017 Google reviews

    Call (346) 455-4730WebsiteLicense report

  8. Origin Environmental Inc

    Porter, Harris County · TDLR #ACO1255 · licensed until Oct 22, 2028

    Current license

    4.927 Google reviews

    Call (281) 906-9365WebsiteLicense report

  9. Mold Busters LLC

    Katy, Harris County · TDLR #ACO1185 · licensed until Jun 22, 2027

    Current license

    5.013 Google reviews

    Call (281) 957-6653WebsiteLicense report

  10. Texas Mold Advisors LLC

    Cypress, Harris County · TDLR #ACO1315 · licensed until Apr 30, 2028

    Current license

    5.08 Google reviews

    Call (281) 705-6889WebsiteLicense report

  11. Spear & Lancaster, LLC

    Magnolia, Waller County · TDLR #ACO1320 · licensed until Jul 28, 2028

    Current license

    5.05 Google reviews

    Call (281) 252-0005WebsiteLicense report

  12. AQ Testing Services, LLC

    Katy, Waller County · TDLR #ACO1233 · licensed until May 15, 2028

    Google listing: AQ Testing

    Current license

    4.652 Google reviews

    Call (713) 775-8863WebsiteLicense report

  13. Preferred Home Inspections, Inc.

    Spring, Montgomery County · TDLR #ACO1094 · licensed until Mar 20, 2027

    Google listing: Preferred Home Services

    Current license

    4.69 Google reviews

    Call (713) 249-8581WebsiteLicense report

  14. Terra Nova Consulting Inc

    Katy, Harris County · TDLR #ACO1062 · licensed until Aug 19, 2028

    Current license

    5.01 Google review

    Call (713) 482-8787WebsiteLicense report

  15. ESE Partners LLC

    Katy, Harris County · TDLR #ACO1089 · licensed until Mar 18, 2027

    Current license

    4.03 Google reviews

    Call (281) 501-6100WebsiteLicense report

  16. Ferkam Management Corporation

    Humble, Harris County · TDLR #ACO1081 · licensed until Jun 11, 2028

    Google listing: Fercam Group

    Current license

    3.73 Google reviews

    Call (346) 345-2015WebsiteLicense report

  17. Total Safety, U.S., Inc.

    Pasadena, Harris County · TDLR #ACO1175 · licensed until Aug 12, 2028

    Google listing: Total Safety

    Current license

    3.825 Google reviews

    Call (281) 291-4800WebsiteLicense report

  18. BAQ Inc.

    The Woodlands, Montgomery County · TDLR #ACO1265 · licensed until Nov 24, 2026

    Current license

    No Google reviews matched

    Call (281) 448-1100License report

  19. CE Environmental Consultants LLC

    Pattison, Waller County · TDLR #ACO1168 · licensed until Feb 24, 2028

    Current license

    No Google reviews matched

    Call (775) 250-7898License report

  20. Envirobuild Materials and Services LLC

    South Houston, Harris County · TDLR #ACO1302 · licensed until Dec 18, 2027

    Current licenseAlso licensed for mold removal: by law, not on the same project

    No Google reviews matched

    Call (346) 747-1563License report

  21. Hedderman & SON Assessments, LLC

    Conroe, Montgomery County · TDLR #ACO1223 · licensed until Jan 25, 2027

    Current license

    No Google reviews matched

    Call (281) 355-9944WebsiteLicense report

  22. Point Alliance Solutions LLC

    Spring, Harris County · TDLR #ACO1146 · licensed until May 7, 2027

    Current license

    No Google reviews matched

    Call (832) 953-2899WebsiteLicense report

  23. Robert_borman@hseworld.com

    Friendswood, Galveston County · TDLR #ACO1317 · licensed until Jul 6, 2028

    Current license

    No Google reviews matched

    Call (217) 549-7122License report

Best-reviewed only

The top 10 by Google reviews in the Houston area, with how the score works.

Best mold testing in Houston

Check the license yourself

Licenses can lapse between our updates. Confirm a number before work starts.

Texas mold license check

Houston FAQ

Mold Testing in Houston: common questions

How much does mold testing cost in Houston?

It depends mostly on how much material is affected and how it has to be handled. We don't publish a price for Houston without data to back it; our mold testing cost guide covers Texas price ranges and what changes them. Get written quotes from at least two licensed companies.

Can the same company test for mold and remove it?

Not on the same project. Texas Occupations Code §1958.155 bars a license holder from doing both mold assessment and mold remediation on one project, and bars anyone from owning a stake in both companies on it. A company can hold both licenses and do each on different jobs. Find a licensed mold removal company in Houston.

What happens after mold testing?

If the assessor finds mold that needs removing, they write a remediation protocol. You hire a different licensed removal company to follow it, then the assessor comes back for a clearance check. After it passes, you should receive a Certificate of Mold Damage Remediation within ten days.

How do I check a mold testing company's license?

Search the company name or license number in our Texas mold license check, or on TDLR's own license search. A mold testing company needs a mold assessment company license; its number starts with ACO.

How many licensed mold testing companies are in Houston?

34 licensed mold testing companies have a Houston address, and 57 are based in the Houston area, according to TDLR records as of Oct 28, 2026.

Mold Testing elsewhere in the Houston area