Registered OWTS installers in Howell County, Missouri
38 companies on Missouri’s roster of registered onsite wastewater treatment system installers give Howell County as their address. A registered installer is a business the state has licensed for the work that installs onsite wastewater treatment systems.
- AA Septic LLC(417) 259-0547MacombInstallerLicence expires October 31, 2026
- All Excavating, LLC(417) 322-0029CleverInstallerLicence expires January 31, 2028
- Amick Wastewater Solutions(636) 777-0235HoustonInstallerLicence expires July 31, 2026
- Arkansas Jetting(870) 847-1425Ash FlatInstallerLicence expires May 31, 2027
- B&B Riley Septic(417) 256-5062West PlainsInstallerLicence expires April 30, 2028
- Bo's Home InspectionsInstallerSoil evaluatorLicence expires September 11, 2027
- Brown's Septic LLC(417) 948-0999Mountain GroveInstallerLicence expires March 31, 2026
- Cody Smith Hauling & Excavating LLC(417) 260-1058SoloInstallerLicence expires May 30, 2027
- Cottonwood Cowboy Construction(417) 217-1583Mountain GroveInstallerLicence expires January 31, 2028
- Courtney Construction LLC(417) 926-1479Mountain GroveInstallerLicence expires January 31, 2027
- DC Plumbing & Backhoe(417) 469-5018Willow SpringsInstallerLicence expires November 30, 2025
- DC Plumbing LLC(417) 469-5018Willow SpringsInstallerLicence expires July 31, 2028
- Dirtworx Land Management(417) 399-3242West PlainsInstallerLicence expires January 31, 2027
- Haynes Engineering and Excavation(417) 234-7652RogersvilleInstallerLicence expires December 31, 2027
- Hogan Farms(417) 331-2554ThornfieldInstallerLicence expires August 31, 2028
- Howe’s Excavation(417) 741-2034HartvilleInstallerLicence expires December 31, 2027
- Johnson Construction(417) 989-0488GrainesvilleInstallerLicence expires October 31, 2026
- K. Davis EnterprisesInstallerLicence expires February 28, 2026
- K&P Services LLC(816) 854-9091Blue SpringsInstallerLicence expires August 31, 2028
- Kevin German(417) 247-7759SummersvilleInstallerLicence expires May 31, 2027
- LDR Plumbing LLC(417) 274-6287West PlainsInstallerLicence expires December 31, 2027
- Martin Plumbing(573) 703-3133WinonaInstallerLicence expires January 31, 2028
- Mike Schumann dBa(310) 349-6779IsabellaInstallerLicence expires March 31, 2026
- Missouri Soil Solutions LLC(417) 321-2221WillardInstallerSoil evaluatorLicence expires October 31, 2027
- Mo-Ark Septic & Excavation(417) 855-0581Mountain ViewInstallerLicence expires December 31, 2027
- Moore Septic Services LLC(417) 259-2694PlatoInstallerLicence expires March 31, 2028
- Owenby's Backhoe and Septic(417) 257-4218West PlainsInstallerLicence expires May 31, 2027
- Quad Brothers Trucking and Excavating LLC(417) 259-4572Mountain GroveInstallerLicence expires March 31, 2028
- Sam's Home & Commercial Inspectors(573) 202-6062VichyInstallerLicence expires August 31, 2028
- SDS Excavation(417) 989-0657IsabellaInstallerLicence expires October 31, 2026
- Simpson Excavating(417) 293-6464West PlainsInstallerLicence expires March 31, 2027
- Smith Excavation LLC(417) 989-0110GainesvilleInstallerLicence expires May 31, 2028
- Taber Construction(417) 546-0089TheodosiaInstallerLicence expires October 31, 2026
- The Plumbing Pioneers(417) 559-5343RogersvilleInstallerLicence expires March 31, 2028
- Toledo Enterprises LLC(480) 207-9117CaboolInstallerLicence expires May 31, 2028
- Triple B Farms LLC(417) 293-6580West PlainsInstallerLicence expires July 31, 2028
- Wamco LLCInstallerLicence expires May 31, 2026
- White rock excavatingInstallerLicence expires July 31, 2028
| Company | Licensed for | Phone | Licence expires |
|---|---|---|---|
| AA Septic LLCMacomb | Installer | (417) 259-0547 | October 31, 2026 |
| All Excavating, LLCClever | Installer | (417) 322-0029 | January 31, 2028 |
| Amick Wastewater SolutionsHouston | Installer | (636) 777-0235 | July 31, 2026 |
| Arkansas JettingAsh Flat | Installer | (870) 847-1425 | May 31, 2027 |
| B&B Riley SepticWest Plains | Installer | (417) 256-5062 | April 30, 2028 |
| Bo's Home Inspections | InstallerSoil evaluator | (573) 647-1913 | September 11, 2027 |
| Brown's Septic LLCMountain Grove | Installer | (417) 948-0999 | March 31, 2026 |
| Cody Smith Hauling & Excavating LLCSolo | Installer | (417) 260-1058 | May 30, 2027 |
| Cottonwood Cowboy ConstructionMountain Grove | Installer | (417) 217-1583 | January 31, 2028 |
| Courtney Construction LLCMountain Grove | Installer | (417) 926-1479 | January 31, 2027 |
| DC Plumbing & BackhoeWillow Springs | Installer | (417) 469-5018 | November 30, 2025 |
| DC Plumbing LLCWillow Springs | Installer | (417) 469-5018 | July 31, 2028 |
| Dirtworx Land ManagementWest Plains | Installer | (417) 399-3242 | January 31, 2027 |
| Haynes Engineering and ExcavationRogersville | Installer | (417) 234-7652 | December 31, 2027 |
| Hogan FarmsThornfield | Installer | (417) 331-2554 | August 31, 2028 |
| Howe’s ExcavationHartville | Installer | (417) 741-2034 | December 31, 2027 |
| Johnson ConstructionGrainesville | Installer | (417) 989-0488 | October 31, 2026 |
| K. Davis EnterprisesAva | Installer | (417) 337-1766 | February 28, 2026 |
| K&P Services LLCBlue Springs | Installer | (816) 854-9091 | August 31, 2028 |
| Kevin GermanSummersville | Installer | (417) 247-7759 | May 31, 2027 |
| LDR Plumbing LLCWest Plains | Installer | (417) 274-6287 | December 31, 2027 |
| Martin PlumbingWinona | Installer | (573) 703-3133 | January 31, 2028 |
| Mike Schumann dBaIsabella | Installer | (310) 349-6779 | March 31, 2026 |
| Missouri Soil Solutions LLCWillard | InstallerSoil evaluator | (417) 321-2221 | October 31, 2027 |
| Mo-Ark Septic & ExcavationMountain View | Installer | (417) 855-0581 | December 31, 2027 |
| Moore Septic Services LLCPlato | Installer | (417) 259-2694 | March 31, 2028 |
| Owenby's Backhoe and SepticWest Plains | Installer | (417) 257-4218 | May 31, 2027 |
| Quad Brothers Trucking and Excavating LLCMountain Grove | Installer | (417) 259-4572 | March 31, 2028 |
| Sam's Home & Commercial InspectorsVichy | Installer | (573) 202-6062 | August 31, 2028 |
| SDS ExcavationIsabella | Installer | (417) 989-0657 | October 31, 2026 |
| Simpson ExcavatingWest Plains | Installer | (417) 293-6464 | March 31, 2027 |
| Smith Excavation LLCGainesville | Installer | (417) 989-0110 | May 31, 2028 |
| Taber ConstructionTheodosia | Installer | (417) 546-0089 | October 31, 2026 |
| The Plumbing PioneersRogersville | Installer | (417) 559-5343 | March 31, 2028 |
| Toledo Enterprises LLCCabool | Installer | (480) 207-9117 | May 31, 2028 |
| Triple B Farms LLCWest Plains | Installer | (417) 293-6580 | July 31, 2028 |
| Wamco LLC | Installer | (417) 741-0469 | May 31, 2026 |
| White rock excavatingAva | Installer | (417) 527-2810 | July 31, 2028 |
What “Registered OWTS installer” means in Missouri
Being on this roster means Missouri DHSS has licensed this business for installs onsite wastewater treatment systems. It is not a rating, a review, or a statement about price, insurance or workmanship.
Registrations carry an expiration date, shown on every listing. The state republishes the dataset as registrations change.
Before you hire, confirm the licence with Missouri DHSS, or the state's own published registration data. How to verify →
Registered OWTS installers in neighbouring counties
Records as published August 26, 2026. Report a correction.