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Best Mold Testing Companies in Houston, TX

The 10 best-reviewed of the 57 state-licensed mold testing (mold assessment) companies in the Houston area, ranked on Google reviews. Every license checked against TDLR on Oct 28, 2026.

How we rankNo ads
Who qualifies
A current TDLR mold assessment company license, based in the Houston area, at least one Google review
Score
(reviews × rating + 10 × 4.5) ÷ (reviews + 10)
Why
Pulls a company toward 4.5 until it has enough reviews: 3 reviews at 5.0 shouldn't beat 200 at 4.8
Paid placement
None. Nobody can pay to move up

Google numbers as matched to each license. How we verify

  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 · score 5.00

    Call (281) 734-3118WebsiteLicense report

  2. HTX Home Inspections

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

    Current license

    5.01353 Google reviews · score 5.00

    Call (832) 425-8826WebsiteLicense report

  3. Houston Home Inspections, PLLC

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

    Google listing: Houston Inspections

    Current license

    5.0473 Google reviews · score 4.99

    Call (713) 408-1129WebsiteLicense report

  4. Kingdom Inspections LLC

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

    Current license

    5.080 Google reviews · score 4.94

    Call (804) 420-7504WebsiteLicense report

  5. 1st Rate Inspections

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

    Current license

    4.92399 Google reviews · score 4.90

    Call (832) 567-5791WebsiteLicense report

  6. Redfish Inspections, LLC

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

    Current license

    4.91514 Google reviews · score 4.90

    Call (713) 568-8184WebsiteLicense report

  7. Noble Property Inspections, PLLC

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

    Current license

    4.91261 Google reviews · score 4.90

    Call (832) 551-1397WebsiteLicense report

  8. Reagan Environmental

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

    Current license

    4.972 Google reviews · score 4.85

    Call (832) 623-4889WebsiteLicense report

  9. Texas Mold Specialists

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

    Current license

    4.969 Google reviews · score 4.85

    Call (713) 682-0133WebsiteLicense report

  10. Thorough Point Inspections

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

    Current license

    5.017 Google reviews · score 4.81

    Call (346) 455-4730WebsiteLicense report

Reviews say how customers felt, not whether the job met Texas rules. Ask for the sampling plan, the lab used and a written protocol before you sign.

See every licensed company

All 57 licensed mold testing companies in the area, including those without reviews.

All mold testing in Houston