GroundRosterLicensed Well and Septic Contractors: Washington County, TX
40 licensed well and septic pros based in Washington County. Every license number below is sourced from public licensing records, with a link to look it up yourself.
Grouped by the county of the address on each license record, which can be a mailing address, so it doesn't tell you where the business works. When the record names no county, we place it by ZIP code, then town.
Checked against Texas Commission on Environmental Quality (TCEQ) - OSSF occupational licensing and Texas Department of Licensing and Regulation (TDLR). Roster copy last refreshed 2026-08-17.
Towns in Washington County
The town named on the license records based here, with the number of listings in each, most first.
License classes on the Washington County records
Each class as the issuing agency prints it on the license record. A record that names more than one class counts once under each, so the rows can add up to more than 40.
| License class | Trade | Listings |
|---|---|---|
| OSSF Installer I | Septic | 16 |
| OSSF Installer II | Septic | 16 |
| OSSF Site Evaluator | Septic | 16 |
| OSSF Maintenance Provider | Septic | 7 |
| Water Well Driller/Pump Installer | Well | 4 |
Septic Contractors based in Washington County (36)
Cody Kyle HarmanLicensed
Mark KettlerLicensed
Riley Logan SaundersLicensed
Matthew MonfredaLicensed
Alan B FlasowskiLicensed
Luis Javier SanchezLicensed
Charles Edward Sr GreenLicensed
Robert A KettlerLicensed
John Ross KettlerLicensed
Justin V FlasowskiLicensed
Colby William Hodde
Justin R FlasowskiLicensed
Miguel Angel PerezLicensed
Brady T RussellLicensed
William A KmiecLicensed
William C HegarLicensed
Mark Luke MarzahnLicensed
Lindsey Carden
Gabriel McWilliamsLicensed
Barry Cole SmithLicensed
Darren J DerkowskiLicensed
Marcoantonio BustosLicensed
Treyton TillmanLicensed
Roland W WittnerLicensed
Chance William Winkelmann
Susie M FlasowskiLicensed
Marisa K HarmanLicensed
Creig J CorlisLicensed
Gregory A ArmstrongLicensed
Cody StelterLicensed
Cynthia Renee HamiltonLicensed
Jose Luis GamboaLicensed
Paul A BrownLicensed
James Boone SanfordLicensed
Jack AtkinsonLicensed
Kyle StegintLicensed
Water Well Contractors based in Washington County (4)
Steve Charles Jr BilskiLicensed
Antonio TrejoLicensed
Harvey John Jr Ebert
Jamie J EbertLicensed
Own one of these businesses? Find your listing and claim it.
Looking for a specific contractor? Search by name, business name, or license number.
Services in Washington County, with national cost ranges
Listings based in Washington County whose license class covers each service. Cost ranges are national; each links its cost guide.
| Service | Based in Washington County | National cost |
|---|---|---|
| Septic Tank Pumping | 0 | $250 to $600 |
| Septic System Installation | 32 | $3,600 to $12,500 |
| Septic Inspection | 0 | $150 to $900 |
| Septic System Design | 0 | Varies by site |
| Perc Test and Soil Evaluation | 16 | $250 to $1,000 |
| Well Drilling | 4 | $5,500 to $35,000 |
| Well Pump Repair | 4 | $1,000 to $2,500 |
None of the listings based in Washington County hold a license class we can match to septic tank pumping, septic inspection or septic system design. Ask any contractor whether they do this work, or try a nearby city.
Hiring a well and septic professional in Washington County
Before you sign anything: confirm the license on this page is still active with the agency that issued it, ask for proof of insurance, and get at least three written quotes; pricing on this work varies widely by site conditions.
Do I need a permit for well or septic work in Texas?