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Texas Mold Contractor Licensing Rules

Updated 2026 · Based on TX Occupations Code Chapter 1958 and 25 TAC §295.307

Texas regulates mold contractors through the Texas Department of Licensing and Regulation (TDLR). The state requires separate company registrations for mold assessment and mold remediation, with strict conflict-of-interest rules that protect homeowners from contractors who could inflate the scope of their own work.

Two Types of Texas Mold Registrations

Texas issues two distinct company registration types under Chapter 1958 of the Texas Occupations Code:

Mold Assessment Company

Registered to inspect properties for mold, collect samples, develop a mold management plan, and write the remediation protocol that specifies what remediation work must be done.

Mold Remediation Company

Registered to perform the physical mold remediation work — removing contaminated materials, treating surfaces, and restoring the area per the assessment company's remediation protocol.

In addition to company registration, Texas also licenses individual Mold Assessment Consultants and Mold Remediators who must be employed by or work under a registered company.

The Conflict-of-Interest Rule

Texas Occupations Code §1958.155 (implemented by 25 TAC §295.307) establishes strict conflict-of-interest rules:

  • A licensee shall not perform both mold assessment and mold remediation on the same project. (25 TAC §295.307(a)(1))
  • A person shall not own an interest in an entity that performs mold assessment services and an entity that performs mold remediation services on the same project. (25 TAC §295.307(a)(2))
  • Companies must disclose all ownership interests of 10% or more to TDLR, and report changes within 10 days. (25 TAC §295.307(b))

Violation consequence: Conflict-of-interest violations are Level I critical violations under TDLR rules, subject to up to $5,000 per day in fines. They are non-waivable — TDLR cannot reduce or forgive these penalties.

What This Means When You Hire

Texas's COI rule applies to the same project (more narrowly defined than some states, which use "same property"). In practice, when dealing with mold in your Texas home:

  1. Hire a registered mold assessment company to inspect the mold, determine the extent of contamination, and write a remediation protocol.
  2. Hire a separate registered mold remediation company to carry out the remediation work specified in the protocol. This company cannot be affiliated with (or share ownership with) the assessment company.
  3. Post-remediation clearance testing is performed by the assessment company (or an independent assessor) to confirm the work was done correctly.

Can a Company Hold Both Registrations?

Yes. Texas does not prohibit a single company from holding both a Mold Assessment Company and a Mold Remediation Company registration. The restriction applies only to using both registrations on the same project. In practice, a company with both registrations must act only as assessor or only as remediator on any given job.

Contractors in our directory who hold both registrations are shown with both the "Remediation" and "Inspection & Assessment" badges — indicating they're qualified for either role, but will only perform one role on your specific project.

How to Verify a Texas Mold Contractor's Registration

Verify any Texas mold contractor's registration through the TDLR license search. Look for:

  • Registration type: Mold Assessment Company or Mold Remediation Company
  • Registration status: Active
  • No disciplinary history or pending complaints

Our directory is sourced directly from TDLR registration data. Verify directly with TDLR before hiring — our data is periodically updated but may not reflect the most recent status changes.

Find Licensed Texas Mold Contractors

Browse our directory of TDLR-registered mold assessment and remediation companies across Texas.

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