Licensed septic companies in Seneca, Missouri
7 businesses on Missouri’s septic licensing records give an address in Seneca, along with 8 individually licensed professionals. Seneca is in Barry County, which has 187 in total.
6 registered owts installers1 registered onsite soil evaluators
- Curtis Excavating & Grading LLC(417) 456-2286SenecaInstallerLicence expires January 31, 2027
- Duffers Septic Solutions(417) 214-9489SenecaInstallerLicence expires April 30, 2027
- Duffers Septic Solutions(417) 214-9489SenecaSoil evaluatorLicence expires April 30, 2027
- King Backhoe & Dozer Service(417) 438-6378SenecaInstallerLicence expires March 31, 2028
- King Backhoe & Dozer, LLC(417) 438-6378SenecaInstallerLicence expires May 31, 2028
- Tice Excavation(417) 592-4636SenecaInstallerLicence expires May 31, 2027
- Woodward and Sons Land Services LLC(417) 439-1313SenecaInstallerLicence expires July 31, 2028
| Company | Licensed for | Phone | Licence expires |
|---|---|---|---|
| Curtis Excavating & Grading LLCSeneca | Installer | (417) 456-2286 | January 31, 2027 |
| Duffers Septic SolutionsSeneca | Installer | (417) 214-9489 | April 30, 2027 |
| Duffers Septic SolutionsSeneca | Soil evaluator | (417) 214-9489 | April 30, 2027 |
| King Backhoe & Dozer ServiceSeneca | Installer | (417) 438-6378 | March 31, 2028 |
| King Backhoe & Dozer, LLCSeneca | Installer | (417) 438-6378 | May 31, 2028 |
| Tice ExcavationSeneca | Installer | (417) 592-4636 | May 31, 2027 |
| Woodward and Sons Land Services LLCSeneca | Installer | (417) 439-1313 | July 31, 2028 |
Individually licensed professionals in Seneca
| Name | Licence | City | Expires |
|---|---|---|---|
| Aaron King | Basic InstallerNo. 38387 | Seneca | May 31, 2028 |
| Derek Woodward | Basic InstallerNo. 39474 | Seneca | July 31, 2028 |
| Duff Calkins | Basic InstallerNo. 38073 | Seneca | April 30, 2027 |
| Duff Calkins | Onsite Soil EvaluatorNo. 51238 | Seneca | April 30, 2027 |
| Jacob King | Advanced InstallerNo. 38327 | Seneca | March 31, 2028 |
| Nicholas "Nick" Curtis | Basic InstallerNo. 39052 | Seneca | January 31, 2027 |
| Ray Becker | Advanced InstallerNo. 39128 | Seneca | May 31, 2027 |
| Stephen Woodward | Basic InstallerNo. 39475 | Seneca | July 31, 2028 |
More licensed companies elsewhere in Barry County
A Missouri licence is valid statewide. These are based in the same county but a different town, and can legally work in Seneca.
- 3 Nails Construction(479) 903-3985SeligmanInstallerLicence expires January 31, 2028
- A-Quality Excavating/Vaughn Terry(417) 438-4484JoplinInstallerLicence expires May 31, 2026
- Aaron's Home Remodeling and Repair, LLC(417) 456-2144PinevilleInstallerLicence expires April 30, 2027
- Abe Sherwood Services(208) 351-1433VeronaInstallerLicence expires June 30, 2027
- Ace Dirtworks & Paving LLC(417) 779-5278LampeInstallerLicence expires August 31, 2026
- Advanced Excavating & Grading LLC(417) 546-0077ForsythInstallerLicence expires July 31, 2026
- All Excavating, LLC(417) 322-0029CleverInstallerLicence expires January 31, 2028
- All Water Plumbing and Septic(479) 721-1177ColcordInstallerLicence expires January 31, 2028
- Allen Excavating(417) 230-2969NixaInstallerLicence expires April 30, 2026
- Argo Plumbing Inc(417) 353-0535RepublicInstallerLicence expires July 31, 2028
- Armor Construction / Hammerhead Construction(417) 830-9624Kimberling CityInstallerSoil evaluatorLicence expires June 30, 2027
- Asselin Construction, LLC(417) 294-3189Reeds SpringSoil evaluatorLicence expires February 28, 2026
| Company | Licensed for | Phone | Licence expires |
|---|---|---|---|
| 3 Nails ConstructionSeligman | Installer | (479) 903-3985 | January 31, 2028 |
| A-Quality Excavating/Vaughn TerryJoplin | Installer | (417) 438-4484 | May 31, 2026 |
| Aaron's Home Remodeling and Repair, LLCPineville | Installer | (417) 456-2144 | April 30, 2027 |
| Abe Sherwood ServicesVerona | Installer | (208) 351-1433 | June 30, 2027 |
| Ace Dirtworks & Paving LLCLampe | Installer | (417) 779-5278 | August 31, 2026 |
| Advanced Excavating & Grading LLCForsyth | Installer | (417) 546-0077 | July 31, 2026 |
| All Excavating, LLCClever | Installer | (417) 322-0029 | January 31, 2028 |
| All Water Plumbing and SepticColcord | Installer | (479) 721-1177 | January 31, 2028 |
| Allen ExcavatingNixa | Installer | (417) 230-2969 | April 30, 2026 |
| Argo Plumbing IncRepublic | Installer | (417) 353-0535 | July 31, 2028 |
| Armor Construction / Hammerhead ConstructionKimberling City | InstallerSoil evaluator | (417) 830-9624 | June 30, 2027 |
| Asselin Construction, LLCReeds Spring | Soil evaluator | (417) 294-3189 | February 28, 2026 |
Septic licensing in Seneca
- How many licensed septic companies are there in Seneca?
- 7 businesses give Seneca as their address on Missouri's septic licensing records, alongside 8 individually licensed professionals. That count is of businesses based in Seneca, not of everyone who will work there — a Missouri licence is valid across the state.
- Do I have to use a company based in Seneca?
- No. Licensing is statewide, so any licensed company can legally work in Seneca. Barry County has 187 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 Seneca 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 Barry County
Records as published August 26, 2026. Report a correction.