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Texas Mold License Report 2026: Licensed Mold Remediators, Assessors, and License Deserts by County
Last updated October 8, 2026 · data as of October 4, 2026 (CT) · first published October 8, 2026. Independent site, not affiliated with TDLR.
Summary: As of October 4, 2026, TDLR lists 2,276 current mold licenses with a Texas address: 1,216 remediation licenses (776 individual contractors and 440 companies) and 1,060 assessment licenses (879 individual consultants and 181 companies). 153 of 254 Texas counties have no licensed mold remediator or assessor on file, and 174 have no licensed remediator. Texas Mold Remediation is an independent directory — not a contractor and not affiliated with TDLR.
2,276
current Texas mold license records (MRC, RCO, MAC, ACO)
153/254
counties with no licensed mold remediator or assessor on file
174
counties with no licensed remediation contractor or company
50%
of all licenses are in just 5 counties
197
licenses with an expiration date in the next 90 days
Key findings
- Texas mold license deserts are widespread. 153 of 254 counties (60%) have zero current TDLR mold remediation or assessment licenses with an address in the county. Only 68 counties have both a licensed remediator and a licensed assessor on file.
- More counties lack a remediator than an assessor. 174 counties have no remediation license (MRC or RCO) and 165 have no assessment license (MAC or ACO). 21 counties have assessors but no remediators; 12 have remediators but no assessors.
- Licenses are highly concentrated. Harris County alone holds 482 records (21% of the state). The five most-licensed counties hold 1,137 records — 50% of all Texas mold licenses.
- Statewide, there are more remediation licenses than assessment licenses (1,216 vs 1,060; 0.87 assessment licenses per remediation license), but the balance varies a lot by county — see the county ratio table.
- Renewals are coming due. 197 current licenses show an expiration date between October 8, 2026 and January 6, 2027. Expiring is not the same as lapsing — most holders renew — but it is a reason to re-check a license on TDLR right before you sign a contract.
How many licensed mold remediators are in Texas?
As of October 4, 2026, TDLR's public files list 776 current Mold Remediation Contractors (MRC, individuals) and 440 Mold Remediation Companies (RCO, businesses) with a Texas address — 1,216 remediation licenses in total. On the assessment side there are 879 Mold Assessment Consultants (MAC) and 181 Mold Assessment Companies (ACO). Individuals and companies are counted separately, so these are license records, not distinct businesses: one business can appear as a Mold Remediation Company (RCO) and again through its licensed Mold Remediation Contractor (MRC).
| License type | Prefix | Group | Licenses | Share |
|---|---|---|---|---|
| Mold Remediation Contractor | MRC | Remediation | 776 | 34.1% |
| Mold Remediation Company | RCO | Remediation | 440 | 19.3% |
| Mold Assessment Consultant | MAC | Assessment | 879 | 38.6% |
| Mold Assessment Company | ACO | Assessment | 181 | 8.0% |
| Total | 2,276 | 100% | ||
Texas mold license deserts: counties with no licensed remediator or assessor
We call a county a license desert when no current TDLR mold license of a given kind lists an address there. A desert does not mean nobody can work in that county — TDLR mold licenses are valid statewide, and contractors routinely travel. It does mean a property owner there has no local licensee on record and will usually be hiring from another county.
| Desert type | Counties | Share of counties |
|---|---|---|
| No remediation license (no MRC or RCO) | 174 | 69% |
| No assessment license (no MAC or ACO) | 165 | 65% |
| No mold license of any of the four types | 153 | 60% |
| At least one license of any type | 101 | 40% |
Counties with assessors but no remediators (21)
Aransas, Austin, Bandera, Burleson, Chambers, Colorado, Coryell, Erath, Gillespie, Hardin, Hill, Hudspeth, Newton, Palo Pinto, Red River, Shackelford, Starr, Terry, Uvalde, Victoria, Washington.
Counties with remediators but no assessors (12)
Grayson, Henderson, Jim Wells, Lamar, Lavaca, McCulloch, Randall, San Jacinto, San Patricio, Tom Green, Walker, Wood. Texas generally requires assessment and remediation on the same project to be done by separate, independent licensees, so owners here will often bring the assessor in from elsewhere.
All 153 counties with no mold licensee on file
Anderson, Andrews, Angelina, Archer, Armstrong, Bailey, Baylor, Bee, Blanco, Borden, Bosque, Brewster, Briscoe, Brooks, Brown, Calhoun, Camp, Carson, Cass, Castro, Cherokee, Childress, Cochran, Coke, Coleman, Collingsworth, Comanche, Concho, Cottle, Crane, Crockett, Crosby, Culberson, Dallam, Dawson, Deaf Smith, Delta, DeWitt, Dickens, Dimmit, Donley, Duval, Eastland, Edwards, Falls, Fannin, Fisher, Floyd, Foard, Franklin, Freestone, Frio, Gaines, Garza, Glasscock, Goliad, Gonzales, Gray, Hale, Hall, Hamilton, Hansford, Hardeman, Hartley, Haskell, Hemphill, Hockley, Hopkins, Houston, Howard, Hutchinson, Irion, Jack, Jackson, Jasper, Jeff Davis, Jim Hogg, Jones, Karnes, Kenedy, Kent, Kimble, King, Kinney, Kleberg, Knox, La Salle, Lamb, Lee, Leon, Limestone, Lipscomb, Live Oak, Llano, Loving, Lynn, Marion, Martin, Mason, McMullen, Menard, Milam, Mills, Mitchell, Moore, Morris, Motley, Nolan, Ochiltree, Oldham, Panola, Parmer, Pecos, Presidio, Rains, Reagan, Real, Reeves, Refugio, Roberts, Runnels, Rusk, Sabine, San Augustine, San Saba, Schleicher, Scurry, Shelby, Sherman, Somervell, Stephens, Sterling, Stonewall, Sutton, Swisher, Terrell, Throckmorton, Titus, Trinity, Tyler, Upshur, Upton, Val Verde, Ward, Wharton, Wheeler, Wilbarger, Willacy, Winkler, Yoakum, Young, Zapata, Zavala.
Live in one of these counties? Start with the nearest county that has licensees, then confirm the license on TDLR License Search. The statewide directory lets you search every current licensee by name or license number.
Where Texas mold licenses concentrate: top 10 counties and assessor-to-remediator ratio
These are the 10 counties with the most current mold licenses on file. The ratio column divides assessment licenses (MAC + ACO) by remediation licenses (MRC + RCO) in each county; a value under 1.00 means more remediation licenses than assessment licenses. Figures are by county of record, not by metro area.
| County | All licenses | Remediation (MRC + RCO) | Assessment (MAC + ACO) | Assessor : remediator | Share of state |
|---|---|---|---|---|---|
| Harris County | 482 | 239 | 243 | 1.02 | 21.2% |
| Dallas County | 188 | 86 | 102 | 1.19 | 8.3% |
| Tarrant County | 181 | 127 | 54 | 0.43 | 8.0% |
| Bexar County | 153 | 87 | 66 | 0.76 | 6.7% |
| Travis County | 133 | 68 | 65 | 0.96 | 5.8% |
| Montgomery County | 116 | 63 | 53 | 0.84 | 5.1% |
| Collin County | 110 | 59 | 51 | 0.86 | 4.8% |
| Denton County | 94 | 40 | 54 | 1.35 | 4.1% |
| Williamson County | 83 | 49 | 34 | 0.69 | 3.6% |
| Fort Bend County | 69 | 26 | 43 | 1.65 | 3.0% |
| Texas (all counties) | 2,276 | 1,216 | 1,060 | 0.87 | 100% |
11 Texas-address records have a blank or unmatched county in TDLR's file; they count toward statewide totals but not toward any county.
Texas mold licenses expiring in the next 90 days
197 current licenses carry a TDLR expiration date between October 8, 2026 and January 6, 2027 (Central Time). This window moves with the page, which rebuilds at least daily. Many holders will renew on time; the practical point is to re-check status on TDLR right before work starts, not just when you first get a quote.
- Mold Assessment Consultant: 83
- Mold Remediation Contractor: 68
- Mold Remediation Company: 34
- Mold Assessment Company: 12
Methodology and limitations
- Source. TDLR's four public mold license files (vsMoldRemediationContractor.csv, vsMoldRemediationCompany.csv, vsMoldAssessmentConsultant.csv, vsMoldAssessmentCompany.csv). We keep rows with License Status CURRENT and State TX — the same filter as our directory and methodology.
- As-of date. Figures reflect our last successful weekly import on October 4, 2026 (CT). Refreshed weekly from TDLR public mold license CSVs (scheduled late Saturday night, Central Time). The page recomputes after each refresh; the downloadable CSV snapshot (October 6, 2026) can differ by a handful of records.
- County. County is the county TDLR has on file for the licensee, matched to our list of 254 Texas counties. It reflects an address of record, not every county a business serves.
- License records, not businesses. Individuals (MRC, MAC) and companies (RCO, ACO) are counted separately. Mold Remediation Workers, Mold Assessment Technicians, labs, and training providers are excluded.
- No per-capita rates (yet). Our county records don't carry official population figures, so we don't publish licenses-per-100,000 rather than estimate them.
- Independence. Texas Mold Remediation is an independent license directory. We don't perform mold assessment or remediation, aren't affiliated with TDLR, and a count here is not an endorsement of anyone. Always confirm on TDLR License Search.
Data and downloads
- Row-level CSV and county × license type summary CSV (CC0) — from the open Texas TDLR mold license dataset
- Full Texas directory — search every current licensee by name or license number
- How to verify a TDLR mold license — step-by-step on TDLR License Search
- Primary sources: TDLR mold program · TDLR License Search · Texas Open Data Portal – TDLR All Licenses
Cite this report
Journalists, researchers, and AI assistants are welcome to quote these figures. Please name TDLR as the underlying data source and link this page. Plain-text citation:
URL: https://www.texasmoldremediation.org/texas-mold-license-report-2026
DOI: not yet assigned. We plan to deposit the dataset with Zenodo; this section will list the DOI once it exists.
Because figures update weekly, include the “data as of” date (October 4, 2026) when you quote a number.
Update log
Figures refresh automatically after each weekly TDLR import. We add a dated entry here each month and whenever the method or sections change.
- — First publication. Statewide totals by license type, county license deserts (no remediators / no assessors / no licensees), assessor-to-remediator ratios in the most-licensed counties, and licenses with expiration dates in the next 90 days — all computed from the weekly TDLR import. Figures update automatically after each weekly refresh; this log records monthly readings and any methodology change.
Related
- Assessor vs remediator in Texas — why the two license groups are separate
- Texas mold laws — Occupations Code Chapter 1958 and TDLR rules
- Certificate of Mold Damage Remediation (CMDR)
- About Texas Mold Remediation — independence and disclosure