| Company | Location | Certifications | License # |
|---|---|---|---|
| Alberti Excavating | Twin Falls, ID | Installer | — |
| All State Waste Management | Twin Falls, ID | Pumper | — |
| All-time Septic Service Idaho LLC | Twin Falls, ID | InstallerPumper | — |
| Aric Johnson | Twin Falls, ID | Installer | — |
| Big Hole Excavation | Twin Falls, ID | Installer | — |
| Bills Sewer & Drain Service Inc. | Twin Falls, ID | Pumper | — |
| Brackman Excavation LLC | Twin Falls, ID | Installer | — |
| City Of Kimberly | Kimberly, ID | Pumper | — |
| Crandall Excavating Inc. | Twin Falls, ID | Installer | — |
| Exclusive Landscaping | Twin Falls, ID | Installer | — |
| Idaho Erosion Control Inc. | Twin Falls, ID | Installer | — |
| Master Rooter Service Inc. | Twin Falls, ID | Pumper | — |
| On Point Excavation & Construction | Twin Falls, ID | Installer | — |
| Psi Environmental Systems Inc. | Twin Falls, ID | Pumper | — |
| Screamin Eagle Construction and Excavation | Twin Falls, ID | Installer | — |
| Superior Sewer and Drain LLC | Twin Falls, ID | Pumper | — |
| Triumph Construction LLC | Twin Falls, ID | Installer | — |
| Web Inc. DBA Western Septic Service | Buhl, ID | Pumper | — |
18 companies in the Idaho DEQ permitted subsurface sewage disposal system installers and septic tank pumpers are based in Twin Falls County as of 2026-07-23. Companies based elsewhere in Idaho also commonly serve the county.
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