| Company | Location | Certifications | License # |
|---|---|---|---|
| Billy Joe Steele | Whitesville, WV | Installer (Class I) | 54-24-0020 |
| Christopher Tyler Hill | Madison, WV | Installer (Class II) | 54-24-A-0027 |
| Danny Gilfilen | Danville, WV | Installer (Class I) | 54-01-0404 |
| James H. Midkiff | Bloomingrose, WV | Installer (Class I) | 54-93-0813 |
| James M. Hill | Madison, WV | Installer (Class II) | 54-00-A-0811 |
| James R. Turner | Madison, WV | Installer (Class II) | 54-91-A-0810 |
| Rhonda Rae Hill | Madison, WV | Installer (Class II) | 57-07-A-0077 |
7 companies in the West Virginia OEHS certified onsite sewage system installers are based in Boone County as of 2026-07-23. Companies based elsewhere in West Virginia also commonly serve the county.
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