Key points
- TDLR says anyone who performs mold assessment in Texas must be licensed, and that mold remediation contractors and companies are required to be licensed.
- TDLR says visible mold under 25 contiguous square feet can be cleaned up by people who are not licensed, such as an owner or maintenance staff. A licensed contractor does not get that exemption.
- The same person or company cannot do both the assessment and the remediation on the same project.
- A licensed remediator works from a protocol written by a licensed mold assessment consultant, and a post-remediation assessment determines clearance.
- Look up any license on TDLR’s license search before you sign, and ask for the consumer information sheet before work starts.
Texas is one of the few states that licenses mold work, and the rules shape how a legitimate job is run. They decide who may inspect, who may remove, who can declare a project finished and what paperwork you should receive. Knowing them lets you tell a properly run project from a company that is improvising.
Who needs a license
TDLR’s program overview defines mold assessment as inspecting or surveying a structure to give information about mold or to develop a mold remediation plan, and mold remediation as the removal, cleaning, sanitizing or other treatment of mold or mold-contaminated matter. Its FAQ says anyone who provides assessment in Texas must be licensed as a mold assessor, and that mold remediation contractors and companies are required to be licensed. Mold remediation workers register with the state instead.
There are separate license types for assessment technicians, assessment consultants, assessment companies, remediation contractors, remediation companies and analysis laboratories. The consultant is the person who writes the plan. The remediation contractor carries it out.
The 25 square foot exemption
TDLR’s FAQ says areas of visible mold of less than 25 contiguous square feet can be cleaned up by people who are not licensed, and that small areas can be cleaned or removed by an owner or maintenance staff. It adds that the exemption applies only to people who are not licensed. A licensed contractor is not exempt from the law and rules even on a small project. In rental housing with ten or more units, the FAQ says remediating 25 contiguous square feet or more of visible mold must be done by a licensed remediator.
That is the legal floor. EPA’s guidance is stricter in spirit: a patch under about 10 square feet can in most cases be handled by a homeowner, and anything larger calls for its remediation guidance or a professional, as does anything involving sewage or other contaminated water, or the HVAC system. Legal permission to clean something yourself does not mean it is a good idea.
Assessor and remediator must be different
This is the rule that most surprises people. TDLR’s FAQ says you are not allowed to conduct both mold assessment and mold remediation on the same project, unless you are employed by a school district and working on a project for that district. A company can hold both licenses, but it cannot use them on the same job. The purpose is to keep the person who decides how much work is needed independent of the person who is paid to do it.
In practice, that means a company that offers to “inspect for free and then remove” the mold is either not licensed for both, is operating outside the rules, or is doing something other than a regulated project. Ask.
How a licensed project flows
measuredA regulated Texas mold project, in order
Sequence as described in TDLR’s FAQ. Details and thresholds should be confirmed in the statute and rules.
- Before any workThe licensee gives you the Consumer Mold Information Sheet.
- AssessmentA licensed assessor inspects and writes a remediation protocol.
- RemediationA licensed remediator follows the protocol and the rules.
- ClearanceThe assessor performs a post-remediation assessment to determine clearance.
- CertificateA licensed remediator can issue a Certificate of Mold Damage Remediation to the owner.
Stated by a cited sourceTypical practice, not a cited figure
TDLR says the Consumer Mold Information Sheet must be given before any mold-related activity begins. It also says a consultant who did not prepare the protocol cannot declare that a project has achieved clearance, and that to determine clearance the consultant must conduct a post-remediation assessment. The certificate, according to the FAQ, is Texas Department of Insurance Form MDR-1, it states that the property does not contain evidence of mold damage, and only a licensed remediator is authorized to give it.
How to verify a license
- Ask for the license number and the full legal name on it, for the company and for the person who will write or carry out the plan.
- Check it on TDLR’s license search, linked from the mold program page. Confirm the license type matches the job: assessor for the plan, remediator for the work.
- Confirm the two are different companies for your project, unless you are in the school-district exception.
- Look for disciplinary history. TDLR says disciplinary orders are posted in its administrative orders search for three years.
Questions to ask
- Who is the licensed assessor, and who is the licensed remediator? Are they independent of each other?
- Will I receive the protocol in writing before work begins? What does it say about containment, removal and clearance?
- What is the moisture source, and who is fixing it? Mold returns where moisture returns.
- How will the area be contained, and how will the air be filtered?
- What does clearance involve, who performs it and will I get the report?
- What is excluded, such as plumbing, roof repair and rebuilding?
How to compare two bids
TDI’s claim guidance says to get estimates from more than one contractor. For mold, compare bids on the same points, because a low number that leaves things out is not a low number.
| Item | What it should say |
|---|---|
| License | The remediation license number and type, checkable on TDLR’s search. |
| Protocol | That work follows a written protocol by a separate licensed assessor, and a copy for you. |
| Scope | Which areas, which materials come out and how much visible mold is involved. |
| Containment | How the area is sealed, how air is filtered and how debris leaves the building. |
| Moisture | Who fixes the source, and what readings are needed before work is closed up. |
| Clearance | That a post-remediation assessment is part of the project and who performs it. |
| Exclusions | Plumbing, roofing, rebuilding and anything else not included. |
| Payment | A schedule. TDI’s guidance is not to pay in full upfront. |
If one bid names a protocol and a clearance step and the other does not, they are not bids for the same job.
Red flags
- A promise that mold will never come back. No one can promise that; it returns when moisture does.
- Fogging, ozone or encapsulating paint offered as the whole solution without finding the water and removing affected material. EPA says killing mold with bleach or biocides is not recommended as routine practice and that mold has to be removed.
- No license number, or a number that does not match the company on TDLR.
- Pressure to sign immediately, or to pay in full upfront. TDI’s claim guidance says to get estimates from more than one contractor and not to pay in full upfront.
- An inspection that comes with a sales pitch for the same company’s removal.
Insurance and mold
The Texas Department of Insurance home insurance guide lists mold removal among the things most policies do not cover, except to repair damage caused by a covered risk, and lists mold removal as an optional endorsement. A burst pipe that caused covered water damage and mold is a different situation from mold that grew from a long-term leak. If you are filing a claim, tell the insurer early and ask what documentation it wants; the documentation checklist helps.
For the process itself, see the mold removal page. For whether testing is useful, read the testing guide, and for the timing of mold growth after a leak, read how long before mold grows.
Common questions
Does my homeowners policy pay for mold removal?
The Texas Department of Insurance guide says most policies do not cover mold removal except to repair damage caused by a covered risk, and that mold removal can be added as an optional endorsement. Check your policy before assuming.
Can the company that finds the mold also remove it?
Not on the same project in Texas, according to TDLR’s FAQ, unless the person works for a school district on that district’s project. A person or company may hold both licenses, but not use them on the same job.
What is a certificate of mold damage remediation?
TDLR’s FAQ describes it as a Texas Department of Insurance form that states the property does not contain evidence of mold damage after remediation, and says only a licensed remediator can issue it. It goes to the property owner.
Do I need a license to clean mold in my own house?
Not for visible mold under 25 contiguous square feet, per TDLR. EPA suggests that patches under about 10 square feet can in most cases be handled by a homeowner. Larger areas, contaminated water or ductwork involvement call for a professional.
If water is already in the building, call and describe it. Related service: Mold removal.
Sources and further reading
- TDLR, Mold Assessors and Remediators, program overview and license lookup
- TDLR, Mold program FAQ
- TDI, Home insurance guide, what policies cover and exclude; updated June 1, 2026
- EPA, A Brief Guide to Mold, Moisture and Your Home, drying within 24 to 48 hours, 10 square feet, sampling, biocides, HVAC, sewage
This article is general information from the Dallas Flood Guard editorial team. It is not medical, legal, engineering or insurance advice. Sources are linked above. See the editorial policy for how posts are researched and corrected.




