Licensed septic companies in St. Louis, Missouri
16 businesses on Missouri’s septic licensing records give an address in St. Louis, along with 18 individually licensed professionals. St. Louis is in Franklin County, which has 157 in total.
12 registered owts installers5 registered onsite soil evaluators
- BDG Contracting Inc(314) 478-2388St. LouisInstallerLicence expires January 31, 2028
- BPG Inspections(800) 285-3001St. LouisSoil evaluatorLicence expires September 30, 2028
- C & H Plumbing Company(314) 494-8042St LouisInstallerLicence expires May 31, 2026
- DJM Ecological Services Inc.(314) 478-2388St. LouisInstallerLicence expires January 31, 2028
- Ed Bellm Plumbing Co(314) 383-1436St. LouisInstallerLicence expires May 31, 2026
- Enterprise Sewer & Drain(314) 503-8645St. LouisInstallerLicence expires March 31, 2028
- Harwood Environmental Services(314) 695-2364St. LouisSoil evaluatorLicence expires March 31, 2026
- Jeffrey Cantwell(314) 803-3310St LouisInstallerLicence expires May 31, 2027
- Leeker Construction Co(314) 355-0078St. LouisInstallerSoil evaluatorLicence expires June 30, 2027
- Merlo Plumbing, Co., Inc(314) 843-1000St. LouisInstallerLicence expires August 31, 2026
- Murphy Company Mechanical Contractors and Engineer(314) 997-6600St. LouisInstallerLicence expires December 31, 2026
- Samuel Heating and Cooling(314) 398-2323St. LouisInstallerLicence expires November 30, 2025
- Samuel Plumbing & Drain Laying(314) 398-2323St. LouisSoil evaluatorLicence expires August 31, 2026
- Superior Sewer Co(314) 931-4738St. LouisInstallerLicence expires July 31, 2026
- Superior Sewer Company(314) 437-0522St. LouisSoil evaluatorLicence expires February 28, 2026
- Wm G Cocos Co Inc(314) 631-2688St LouisInstallerLicence expires August 31, 2026
| Company | Licensed for | Phone | Licence expires |
|---|---|---|---|
| BDG Contracting IncSt. Louis | Installer | (314) 478-2388 | January 31, 2028 |
| BPG InspectionsSt. Louis | Soil evaluator | (800) 285-3001 | September 30, 2028 |
| C & H Plumbing CompanySt Louis | Installer | (314) 494-8042 | May 31, 2026 |
| DJM Ecological Services Inc.St. Louis | Installer | (314) 478-2388 | January 31, 2028 |
| Ed Bellm Plumbing CoSt. Louis | Installer | (314) 383-1436 | May 31, 2026 |
| Enterprise Sewer & DrainSt. Louis | Installer | (314) 503-8645 | March 31, 2028 |
| Harwood Environmental ServicesSt. Louis | Soil evaluator | (314) 695-2364 | March 31, 2026 |
| Jeffrey CantwellSt Louis | Installer | (314) 803-3310 | May 31, 2027 |
| Leeker Construction CoSt. Louis | InstallerSoil evaluator | (314) 355-0078 | June 30, 2027 |
| Merlo Plumbing, Co., IncSt. Louis | Installer | (314) 843-1000 | August 31, 2026 |
| Murphy Company Mechanical Contractors and EngineerSt. Louis | Installer | (314) 997-6600 | December 31, 2026 |
| Samuel Heating and CoolingSt. Louis | Installer | (314) 398-2323 | November 30, 2025 |
| Samuel Plumbing & Drain LayingSt. Louis | Soil evaluator | (314) 398-2323 | August 31, 2026 |
| Superior Sewer CoSt. Louis | Installer | (314) 931-4738 | July 31, 2026 |
| Superior Sewer CompanySt. Louis | Soil evaluator | (314) 437-0522 | February 28, 2026 |
| Wm G Cocos Co IncSt Louis | Installer | (314) 631-2688 | August 31, 2026 |
Individually licensed professionals in St. Louis
| Name | Licence | City | Expires |
|---|---|---|---|
| Ashley Harrop | Onsite Soil EvaluatorNo. 51355 | St. Louis | February 28, 2026 |
| Benjamin Cocos | Basic InstallerNo. 37251 | St Louis | August 31, 2026 |
| Brett Klimaszewski | Advanced InstallerNo. 38234 | St. Louis | January 31, 2028 |
| Calvin Hinton | Basic InstallerNo. 34746 | St Louis | May 31, 2026 |
| Charles Harwood | Onsite Soil EvaluatorNo. 10022 | St. Louis | March 31, 2026 |
| Christopher Bellm | Advanced InstallerNo. 31972 | St. Louis | May 31, 2026 |
| Clayton Wood | Basic InstallerNo. 38827 | St. Louis | July 31, 2026 |
| Doug Leeker | Advanced InstallerNo. 35957 | St. Louis | June 30, 2027 |
| Doug Leeker | Onsite Soil EvaluatorNo. 50847 | St. Louis | June 30, 2027 |
| Douglas Bauer | Advanced InstallerNo. 38233 | St. Louis | January 31, 2028 |
| Jason Ratliff | Onsite Soil EvaluatorNo. 51053 | St. Louis | September 30, 2028 |
| Jeffrey Cantwell | Basic InstallerNo. 39132 | St Louis | May 31, 2027 |
| Justin Manley | Basic InstallerNo. 39018 | St. Louis | December 31, 2026 |
| Kenneth Merlo | Basic InstallerNo. 32301 | St. Louis | August 31, 2026 |
| Samuel Ebegbodi | Advanced InstallerNo. 37690 | St. Louis | November 30, 2025 |
| Samuel Ebegbodi | Onsite Soil EvaluatorNo. 51212 | St. Louis | August 31, 2026 |
| Stjepan Dizdar | Basic InstallerNo. 32157 | St. Louis | March 31, 2028 |
| Terry Blevins | Advanced InstallerNo. 38470 | St. Louis | September 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 St. Louis.
- 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 St. Louis
- How many licensed septic companies are there in St. Louis?
- 16 businesses give St. Louis as their address on Missouri's septic licensing records, alongside 18 individually licensed professionals. That count is of businesses based in St. Louis, 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. Louis?
- No. Licensing is statewide, so any licensed company can legally work in St. Louis. 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 St. Louis 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.