| Company | Location | Certifications | License # |
|---|---|---|---|
| All Js Septic Services LLC | Mountain Home, ID | Pumper | — |
| Allens Water Tender Services Inc | Buhl, ID | Installer | — |
| Artesian Clean Septic and Pottys | King Hill, ID | Pumper | — |
| Bideganeta Construction Inc | Mountain Home, ID | Installer | — |
| Dans Excavation Inc | Mountain Home, ID | Installer | — |
| Hammer Plumbing | Mountain Home, ID | Pumper | — |
| Hardrock Excavating Inc | Mountain Home, ID | Installer | — |
| Jdb3 Llc | Mountain Home, ID | Installer | — |
| King Hill Construction | King Hill, ID | Installer | — |
| Luis Lasuen | Mountain Home, ID | Installer | — |
| MLV Excavation and Construction LLC | Mountain Home, ID | Installer | — |
| Pat Landers | Mountain Home, ID | Installer | — |
| Riley Construction LLC | Mountain Home, ID | Installer | — |
| Western Sky Construction | Mountain Home, ID | Installer | — |
14 companies in the Idaho DEQ permitted subsurface sewage disposal system installers and septic tank pumpers are based in Elmore County as of 2026-07-23. Companies based elsewhere in Idaho also commonly serve the county.
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