Licensed septic companies in St. Mary's, Missouri
1 business on Missouri’s septic licensing records gives an address in St. Mary's, along with 1 individually licensed professional. St. Mary's is in Cape Girardeau County, which has 43 in total.
- Williams Construction & Excavating LLC(573) 543-2933St. Mary'sInstallerLicence expires August 31, 2028
| Company | Licensed for | Phone | Licence expires |
|---|---|---|---|
| Williams Construction & Excavating LLCSt. Mary's | Installer | (573) 543-2933 | August 31, 2028 |
Individually licensed professionals in St. Mary's
| Name | Licence | City | Expires |
|---|---|---|---|
| Kenneth Williams | Basic InstallerNo. 33581 | St. Mary's | August 31, 2028 |
More licensed companies elsewhere in Cape Girardeau County
A Missouri licence is valid statewide. These are based in the same county but a different town, and can legally work in St. Mary's.
- Apex Excavation LLC(573) 987-6505JacksonInstallerLicence expires August 31, 2028
- Ardeola Septic Systems(573) 625-1399AdvanceInstallerLicence expires September 30, 2028
- Ardeola Septic Systems(573) 625-1399AdvanceSoil evaluatorLicence expires February 28, 2026
- Bill Bonney Septic & Plumbing(573) 243-5250JacksonSoil evaluatorLicence expires March 31, 2026
- C&S Well Service, LLC(573) 266-0126DaisyInstallerLicence expires June 30, 2026
- Chad's Septic & Backhoe Service LLC(573) 768-2045PerryvilleInstallerLicence expires July 31, 2028
- Courtney Construction LLC(417) 926-1479Mountain GroveInstallerLicence expires January 31, 2027
- CSO Environmental Services, Inc(217) 522-4085SpringfieldInstallerLicence expires March 31, 2027
- DTR Farms LLC(573) 768-5617Marble HillInstallerSoil evaluatorLicence expires March 31, 2027
- Earth First Contractors(573) 768-9830PerryvilleInstallerLicence expires October 31, 2027
- Eddie Cook Enterprise(573) 450-4032Marble HillSoil evaluatorLicence expires June 30, 2026
- Eddie Cook Enterprises(573) 450-4032Marble HillInstallerSoil evaluatorLicence expires November 30, 2025
| Company | Licensed for | Phone | Licence expires |
|---|---|---|---|
| Apex Excavation LLCJackson | Installer | (573) 987-6505 | August 31, 2028 |
| Ardeola Septic SystemsAdvance | Installer | (573) 625-1399 | September 30, 2028 |
| Ardeola Septic SystemsAdvance | Soil evaluator | (573) 625-1399 | February 28, 2026 |
| Bill Bonney Septic & PlumbingJackson | Soil evaluator | (573) 243-5250 | March 31, 2026 |
| C&S Well Service, LLCDaisy | Installer | (573) 266-0126 | June 30, 2026 |
| Chad's Septic & Backhoe Service LLCPerryville | Installer | (573) 768-2045 | July 31, 2028 |
| Courtney Construction LLCMountain Grove | Installer | (417) 926-1479 | January 31, 2027 |
| CSO Environmental Services, IncSpringfield | Installer | (217) 522-4085 | March 31, 2027 |
| DTR Farms LLCMarble Hill | InstallerSoil evaluator | (573) 768-5617 | March 31, 2027 |
| Earth First ContractorsPerryville | Installer | (573) 768-9830 | October 31, 2027 |
| Eddie Cook EnterpriseMarble Hill | Soil evaluator | (573) 450-4032 | June 30, 2026 |
| Eddie Cook EnterprisesMarble Hill | InstallerSoil evaluator | (573) 450-4032 | November 30, 2025 |
Septic licensing in St. Mary's
- How many licensed septic companies are there in St. Mary's?
- 1 business gives St. Mary's as their address on Missouri's septic licensing records, alongside 1 individually licensed professional. That count is of businesses based in St. Mary's, not of everyone who will work there — a Missouri licence is valid across the state.
- Do I have to use a company based in St. Mary's?
- No. Licensing is statewide, so any licensed company can legally work in St. Mary's. Cape Girardeau County has 43 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 St. Mary's 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 Cape Girardeau County
Records as published August 26, 2026. Report a correction.