GroundRosterLicensed Well and Septic Contractors in Illinois
Illinois lists 1,271 licensed well and septic contractors: 269 well drillers and pump installers and 1,002 septic contractors. They are based in 95 counties and 471 cities. 8 license classes appear, covering roles such as pump installation and drilling / construction.
Checked against Illinois Dept. of Public Health - Private Sewage Installation & Pumping licence lookup and Illinois Dept. of Public Health - Water Well Contractor licences. Roster copy last refreshed 2026-10-03.
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Counties with the most listings based there
Browse Illinois by county
Each listing sits under the county of the address on its license record, which can be a mailing address. 95 counties have listings based there.
Cities with the most listings based there
Well Drillers by city in Illinois
Well Pump Installers by city in Illinois
Looking for a specific contractor? Search by name, business name, or license number.
Hiring a well and septic professional in Illinois
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 Illinois?
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 Illinois?
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 Illinois.
Is a permit required?
Usually, for a new system or well and for most repairs. The state or county health authority sets the rules, so ask the contractor which permit the job needs and whether pulling it is included in the quote.
Licensed in Illinois, based in another state
2 well and septic pros hold a Illinois license but the address on the license record is in another state, so they aren't under a Illinois county.
Ortman Drilling, INC.Licensed
Richardville DrillingLicensed
Where this Illinois data comes from
- Illinois Dept. of Public Health - Private Sewage Installation & Pumping licence lookup · source page
- Illinois Dept. of Public Health - Water Well Contractor licences · source page