RH Knowlton & Sons LLC
Soil evaluatorAva · Ozark County, Missouri
The state record
- Name as listed
- RH Knowlton & Sons LLC
- Phone as listed
- (417) 543-1255
- Licence number
- 51408
- City
- Ava
- County of record
- Ozark County
- Licence expires
- November 30, 2026
- Record published
- August 26, 2026
- Licensing agency
- Missouri Department of Health and Senior Services
What this licence covers
- Certified as registered onsite soil evaluator
- Georgia certifies installers and pumpers separately. RH Knowlton & Sons LLC appears on the Onsite Soil Evaluators List roster only — for the other job you would need a company on the other roster.
What this listing does and does not tell you
RH Knowlton & Sons LLC appears on Missouri’s septic licensing records as a registered onsite soil evaluator, as published August 26, 2026. That is a statement by Missouri DHSS that the licence was held when the record was compiled.
It is not a rating, a review, an endorsement or a guarantee of insurance, price or workmanship — and licences lapse. Nothing on this page comes from the company itself, and no company pays to be here.
To confirm the licence is current today, check with Missouri DHSS, or the state's own published registration data. Step by step →
Questions about RH Knowlton & Sons LLC
- Is RH Knowlton & Sons LLC licensed for septic work in Missouri?
- RH Knowlton & Sons LLC appears on Missouri DHSS's records under licence 51408, as published August 26, 2026, filed under Ozark County. That licence is recorded as expiring November 30, 2026.
- What is RH Knowlton & Sons LLC licensed to do?
- Georgia certifies installers and pumpers separately. RH Knowlton & Sons LLC appears on the Onsite Soil Evaluators List roster only — for the other job you would need a company on the other roster.
- How do I verify RH Knowlton & Sons LLC's licence myself?
- Check with Missouri DHSS, or the state's own published registration data, quoting 51408. Nothing on this page comes from the company, and we do not verify anyone ourselves — we republish the state record and name it.
- Who else is licensed near RH Knowlton & Sons LLC?
- Ozark County has 80 licensed septic businesses on the same record. Worth knowing when the first company you call cannot come out for a fortnight.
Other licensed companies in Ozark County
- AA Septic LLC(417) 259-0547MacombInstallerLicence expires October 31, 2026
- Ace Grading, Land Clearing & Utility InstallationsInstallerLicence expires March 31, 2027
- Advanced Excavating & Grading LLC(417) 546-0077ForsythInstallerLicence expires July 31, 2026
- All Excavating, LLC(417) 322-0029CleverInstallerLicence expires January 31, 2028
- B&B Riley Septic(417) 256-5062West PlainsInstallerLicence expires April 30, 2028
- Bell Enterprises(417) 598-3038BransonInstallerLicence expires September 30, 2028
- Ben DeWitt Soil Consulting, LLC(417) 895-8610RogersvilleSoil evaluatorLicence expires November 30, 2026
- Big Carls LLC(417) 294-7755CedarcreekInstallerLicence expires April 30, 2027
- Brown's Septic LLC(417) 948-0999Mountain GroveInstallerLicence expires March 31, 2026
- C & C Welding & Fab LLC(417) 598-2280BransonInstallerLicence expires February 28, 2026
- Carley Excavation LLCInstallerLicence expires September 30, 2026
- Contractor Pros, LLC(417) 365-3808HollisterInstallerLicence expires March 31, 2027
| Company | Licensed for | Phone | Licence expires |
|---|---|---|---|
| AA Septic LLCMacomb | Installer | (417) 259-0547 | October 31, 2026 |
| Ace Grading, Land Clearing & Utility InstallationsAva | Installer | (417) 683-0446 | March 31, 2027 |
| Advanced Excavating & Grading LLCForsyth | Installer | (417) 546-0077 | July 31, 2026 |
| All Excavating, LLCClever | Installer | (417) 322-0029 | January 31, 2028 |
| B&B Riley SepticWest Plains | Installer | (417) 256-5062 | April 30, 2028 |
| Bell EnterprisesBranson | Installer | (417) 598-3038 | September 30, 2028 |
| Ben DeWitt Soil Consulting, LLCRogersville | Soil evaluator | (417) 895-8610 | November 30, 2026 |
| Big Carls LLCCedarcreek | Installer | (417) 294-7755 | April 30, 2027 |
| Brown's Septic LLCMountain Grove | Installer | (417) 948-0999 | March 31, 2026 |
| C & C Welding & Fab LLCBranson | Installer | (417) 598-2280 | February 28, 2026 |
| Carley Excavation LLC | Installer | (417) 230-8637 | September 30, 2026 |
| Contractor Pros, LLCHollister | Installer | (417) 365-3808 | March 31, 2027 |