GroundRosterLicensed Well and Septic Contractors in Idaho
Idaho lists 1,150 licensed well and septic contractors: 107 well drillers and pump installers and 1,043 septic contractors. They are based in 42 counties and 161 cities. 3 license classes appear, covering installation / repair and drilling / construction.
Checked against Idaho DEQ - Permitted Subsurface Sewage Disposal System Installers and Idaho IDWR - Licensed Well Drillers. Roster copy last refreshed 2026-10-17.
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Counties with the most listings based there
Browse Idaho by county
Each listing sits under the county of the address on its license record, which can be a mailing address. 42 counties have listings based there.
Cities with the most listings based there
Septic Installers by city in Idaho
Septic System Installation cost guide
Well Drillers by city in Idaho
Looking for a specific contractor? Search by name, business name, or license number.
Hiring a well and septic professional in Idaho
Before you sign anything: confirm the license on this page is still active with the agency that issued it, ask for proof of insurance, and get at least three written quotes; pricing on this work varies widely by site conditions.
How do I check a well and septic professional's license in Idaho?
Use the license search to find the listing by name, business name, or license number, then confirm it with the agency that issued the license. Every listing links to the roster it came from.
What does well or septic work cost in Idaho?
Our cost guides give national ranges for well drilling, well pump repair, septic tank pumping, septic cleaning, repairs, and inspections. Site conditions, access, and local demand set the real number, so get at least three written quotes from licensed well and septic pros in Idaho.
Is a permit required?
Usually, for a new system or well and for most repairs, and the rules are set by the state or the county. Our Idaho permit guide covers who issues them and what they cover.
Licensed in Idaho, based in another state
2 well and septic pros hold a Idaho license but the address on the license record is in another state, so they aren't under a Idaho county.
Dayton ConstructionLicensed
Greenville Backhoe ServiceLicensed
Listings without a county
1 listing has no county we could place: the license record gives none, and its ZIP code or town doesn't settle one. Search by ZIP.
Permits and Idaho agency resources
Do I need a permit for well or septic work in Idaho? ›
Where this Idaho data comes from
- Idaho DEQ - Permitted Subsurface Sewage Disposal System Installers · source page
- Idaho IDWR - Licensed Well Drillers · source page