Licensed septic companies in Washington, Missouri
9 businesses on Missouri’s septic licensing records give an address in Washington, along with 10 individually licensed professionals. Washington is in Franklin County, which has 157 in total.
6 registered owts installers3 registered onsite soil evaluators
- Bauche Contracting LLC(636) 369-1474WashingtonInstallerLicence expires April 30, 2027
- Brute Force Hauling and Excavating LLC(636) 900-3079WashingtonInstallerLicence expires August 31, 2028
- Dobsch Construction LLC(314) 520-6282WashingtonInstallerLicence expires May 31, 2027
- Edward's Construction(636) 390-4724WashingtonInstallerLicence expires January 31, 2027
- Jesse Kleinheider Contracting LLC(636) 667-2878WashingtonInstallerLicence expires February 28, 2026
- Mathena Excavating(573) 259-6049WashingtonInstallerLicence expires December 31, 2027
- MO Home Inspectors(636) 283-4300WashingtonSoil evaluatorLicence expires August 31, 2026
- Protect Home Inspections(314) 937-6909WashingtonSoil evaluatorLicence expires April 30, 2028
- PROtect Home Inspections(314) 402-7352WashingtonSoil evaluatorLicence expires August 31, 2028
| Company | Licensed for | Phone | Licence expires |
|---|---|---|---|
| Bauche Contracting LLCWashington | Installer | (636) 369-1474 | April 30, 2027 |
| Brute Force Hauling and Excavating LLCWashington | Installer | (636) 900-3079 | August 31, 2028 |
| Dobsch Construction LLCWashington | Installer | (314) 520-6282 | May 31, 2027 |
| Edward's ConstructionWashington | Installer | (636) 390-4724 | January 31, 2027 |
| Jesse Kleinheider Contracting LLCWashington | Installer | (636) 667-2878 | February 28, 2026 |
| Mathena ExcavatingWashington | Installer | (573) 259-6049 | December 31, 2027 |
| MO Home InspectorsWashington | Soil evaluator | (636) 283-4300 | August 31, 2026 |
| Protect Home InspectionsWashington | Soil evaluator | (314) 937-6909 | April 30, 2028 |
| PROtect Home InspectionsWashington | Soil evaluator | (314) 402-7352 | August 31, 2028 |
Individually licensed professionals in Washington
| Name | Licence | City | Expires |
|---|---|---|---|
| Adam Dobsch | Basic InstallerNo. 39136 | Washington | May 31, 2027 |
| Christopher Lowe | Onsite Soil EvaluatorNo. 51210 | Washington | August 31, 2026 |
| Dalton Pope | Advanced InstallerNo. 39508 | Washington | August 31, 2028 |
| Ed Gross | Advanced InstallerNo. 31976 | Washington | May 31, 2028 |
| Gregg Gross | Advanced InstallerNo. 35706 | Washington | January 31, 2027 |
| Jacob Bauche | Basic InstallerNo. 39096 | Washington | April 30, 2027 |
| Jesse Kleinheider | Advanced InstallerNo. 37791 | Washington | February 28, 2026 |
| Kevin Sullivan | Onsite Soil EvaluatorNo. 50072 | Washington | August 31, 2028 |
| Richard Mathena | Basic InstallerNo. 39284 | Washington | December 31, 2027 |
| Tyler Aynes | Onsite Soil EvaluatorNo. 51298 | Washington | April 30, 2028 |
More licensed companies elsewhere in Franklin County
A Missouri licence is valid statewide. These are based in the same county but a different town, and can legally work in Washington.
- 3T Plumbing LLC(573) 291-5120RosebudInstallerLicence expires January 31, 2026
- A & B Plumbing & Heating, Inc.(573) 431-7556Park HillsInstallerLicence expires February 28, 2026
- A R C Grading, LLC(636) 290-5419Moscow MillsInstallerLicence expires November 30, 2025
- Aa Quick Plumbing & Sewer Service of Jefferson County, Inc.(636) 296-1211DittmerInstallerLicence expires March 31, 2026
- AA Quick Sewer Service(636) 296-1211DittmerInstallerLicence expires February 29, 2028
- Accurate Septic & Well Inspections(636) 262-1303St CharlesSoil evaluatorLicence expires August 31, 2028
- Accuro Services,LLC(314) 363-4793WentzvilleInstallerLicence expires December 31, 2027
- Affordable Plumbing LLC(314) 971-3063HermannInstallerLicence expires January 31, 2028
- Appraisal & Building Solutions LLC(573) 241-8273St JamesInstallerLicence expires July 31, 2026
- B Green Plumbing & Drain Cleaning LLC(314) 604-5000WarrentonInstallerLicence expires June 30, 2026
- Backhoe Services Unlimited(636) 234-4790Villa RidgeInstallerLicence expires March 31, 2027
- Ballmann Earthworks(636) 236-4242AugustaInstallerLicence expires March 31, 2028
| Company | Licensed for | Phone | Licence expires |
|---|---|---|---|
| 3T Plumbing LLCRosebud | Installer | (573) 291-5120 | January 31, 2026 |
| A & B Plumbing & Heating, Inc.Park Hills | Installer | (573) 431-7556 | February 28, 2026 |
| A R C Grading, LLCMoscow Mills | Installer | (636) 290-5419 | November 30, 2025 |
| Aa Quick Plumbing & Sewer Service of Jefferson County, Inc.Dittmer | Installer | (636) 296-1211 | March 31, 2026 |
| AA Quick Sewer ServiceDittmer | Installer | (636) 296-1211 | February 29, 2028 |
| Accurate Septic & Well InspectionsSt Charles | Soil evaluator | (636) 262-1303 | August 31, 2028 |
| Accuro Services,LLCWentzville | Installer | (314) 363-4793 | December 31, 2027 |
| Affordable Plumbing LLCHermann | Installer | (314) 971-3063 | January 31, 2028 |
| Appraisal & Building Solutions LLCSt James | Installer | (573) 241-8273 | July 31, 2026 |
| B Green Plumbing & Drain Cleaning LLCWarrenton | Installer | (314) 604-5000 | June 30, 2026 |
| Backhoe Services UnlimitedVilla Ridge | Installer | (636) 234-4790 | March 31, 2027 |
| Ballmann EarthworksAugusta | Installer | (636) 236-4242 | March 31, 2028 |
Septic licensing in Washington
- How many licensed septic companies are there in Washington?
- 9 businesses give Washington as their address on Missouri's septic licensing records, alongside 10 individually licensed professionals. That count is of businesses based in Washington, not of everyone who will work there — a Missouri licence is valid across the state.
- Do I have to use a company based in Washington?
- No. Licensing is statewide, so any licensed company can legally work in Washington. Franklin County has 157 in total, and companies in neighbouring counties can travel too. Being local usually matters for call-out speed and price, not permission.
- How do I check a Washington septic company is really licensed?
- Every listing here names the record it came from and the date that record was published. To confirm it is still current, check with Missouri DHSS, or the state's own published registration data.
Other towns in Franklin County
Records as published August 26, 2026. Report a correction.