Licensed Mold Testing Companies in San Antonio, TX

18 mold testing (mold assessment) companies serve San Antonio, 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 · San AntonioACO

Testing companies: 18 licensed in the area
Based in San Antonio: 12
Google reviews: 11 of 18 matched
License check: TDLR Oct 28, 2026
Same-job rule: Hire mold removal separately

See the 18 companies Need mold removal? 46 licensed companies

Who's listed

Every licensed company based in the San Antonio area (Bexar, Comal, Guadalupe, Kendall, Atascosa and Wilson and nearby counties), with companies based in San Antonio 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.

Only companies with Google reviews (11 of 18)

Based in San Antonio

Licensed mold testing companies with a San Antonio address, ranked.

Priority Inspection Services
San Antonio, Bexar County · TDLR #ACO1297 · licensed until Oct 26, 2027
Current license
5.01125 Google reviews
Call (979) 571-0220 Website License report
Dekd Environmental
San Antonio, Bexar County · TDLR #ACO1191 · licensed until Sep 9, 2027
Google listing: DEKD Environmental Testing & Consulting South
Current license
5.08 Google reviews
Call (210) 370-7655 Website License report
Clean Environments, LLC
San Antonio, Bexar County · TDLR #ACO1276 · licensed until Apr 28, 2027
Current license
5.05 Google reviews
Call (210) 349-7242 Website License report
CJ Environmental Consulting LLC
San Antonio, Bexar County · TDLR #ACO1121 · licensed until Jun 28, 2027
Current license
5.02 Google reviews
Call (210) 788-7330 Website License report
Aehs Inc
San Antonio, Bexar County · TDLR #ACO0121 · licensed until Dec 31, 2026
Current license
4.615 Google reviews
Call (210) 656-9300 Website License report
Gobbell Hays Partners, Inc
San Antonio, Bexar County · TDLR #ACO0184 · licensed until May 12, 2027
Google listing: GHP, Inc.
Current license
5.01 Google review
Call (210) 824-5600 Website License report
TTL Inc.
San Antonio, Bexar County · TDLR #ACO1228 · licensed until Mar 20, 2027
Current license
4.45 Google reviews
Call (210) 888-6100 Website License report
Jeff Zunker Specialty Products Inc DBA Astex Environmental Servi
San Antonio, Bexar County · TDLR #ACO1060 · licensed until Apr 20, 2028
Google listing: Astex Environmental Services
Current license
4.47 Google reviews
Call (210) 828-2900 Website License report
STC Environmental Services, Inc
San Antonio, Bexar County · TDLR #ACO0160 · licensed until Mar 8, 2027
Current license
4.34 Google reviews
Call (210) 696-6288 Website License report
Argus Environmental Consultants, LLC
San Antonio, Bexar County · TDLR #ACO0216 · licensed until Dec 21, 2026
Current license
No Google reviews matched
Call (210) 493-2560 License report
Aries Environmental LLC
San Antonio, Bexar County · TDLR #ACO1295 · licensed until Sep 18, 2027
Current license
No Google reviews matched
Call (210) 289-9717 Website License report
MAC Environmental
San Antonio, Bexar County · TDLR #ACO1260 · licensed until Oct 20, 2028
Current license
No Google reviews matched
Call (210) 799-4649 License report

Elsewhere in the San Antonio area

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

Texas State Environmental Consulting, LLC
San Marcos, Guadalupe County · TDLR #ACO1193 · licensed until Sep 20, 2027
Current license
5.03 Google reviews
Call (512) 952-2757 Website License report
Broadbent & Associates
Boerne, Kendall County · TDLR #ACO1135 · licensed until Jan 28, 2028
Current license
5.01 Google review
Call (702) 712-0985 Website License report
Martinez Asbestos and Environmental Consulting, LLC
Helotes, Medina County · TDLR #ACO1298 · licensed until Oct 26, 2027
Current license
No Google reviews matched
Call (210) 365-6900 License report
Prenviro, LLC
Marion, Guadalupe County · TDLR #ACO1299 · licensed until Nov 18, 2027
Current license
No Google reviews matched
Call (210) 446-4595 License report
Right Angle Inspection, LLC
Canyon Lake, Comal County · TDLR #ACO1231 · licensed until May 31, 2027
Current license
No Google reviews matched
Call (830) 387-8115 Website License report
Solid Rock Home Inspections
Floresville, Wilson County · TDLR #ACO1279 · licensed until May 13, 2027
Current license
No Google reviews matched
Call (210) 834-8221 License report

Best-reviewed only

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

Best mold testing in San Antonio

Check the license yourself

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

Texas mold license check

San Antonio FAQ

Mold Testing in San Antonio: common questions

How much does mold testing cost in San Antonio?

It depends mostly on how much material is affected and how it has to be handled. We don't publish a price for San Antonio 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 San Antonio.

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 San Antonio?

12 licensed mold testing companies have a San Antonio address, and 18 are based in the San Antonio area, according to TDLR records as of Oct 28, 2026.