GroundRosterLicensed Well and Septic Contractors: Knox County, IL
16 licensed well and septic pros based in Knox County. Every license number below is sourced from public licensing records, with a link to look it up yourself.
Grouped by the county of the address on each license record, which can be a mailing address, so it doesn't tell you where the business works. When the record names no county, we place it by ZIP code, then town.
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.
Towns in Knox County
All 7 towns named on the license records based here, with the number of listings in each, most first.
License classes on the Knox County records
Each class as the issuing agency prints it on the license record. A record that names more than one class counts once under each, so the rows can add up to more than 16.
| License class | Trade | Listings |
|---|---|---|
| Private Sewage Installation License | Septic | 8 |
| Private Sewage Pumping License | Septic | 6 |
| Water Well Pump Installation Contractor | Well | 3 |
| Water Well Contractor | Well | 1 |
Septic Contractors based in Knox County (12)
Gary William DavisLicensed
Ted E. BaileyLicensed
Theodore LambasioLicensed
Royal Flush Septic Services, LLCLicensed
Mitchell T SquireLicensed
Kgs ElectricLicensed
Scott Richard HawkinsLicensed
Mark Sanford BernLicensed
Brian L. A. FriedrichLicensed
Lambasio, INC.Licensed
Gregory Lee SalineLicensed
Zachary W SharpLicensed
Water Well Contractors based in Knox County (4)
Douglas A HendricksLicensed
Michael D DrydenLicensed
Greg T SchislerLicensed
Andrew D HendricksLicensed
Own one of these businesses? Find your listing and claim it.
Looking for a specific contractor? Search by name, business name, or license number.
Services in Knox County, with national cost ranges
Listings based in Knox County whose license class covers each service. Cost ranges are national; each links its cost guide.
| Service | Based in Knox County | National cost |
|---|---|---|
| Septic Tank Pumping | 0 | $250 to $600 |
| Septic System Installation | 0 | $3,600 to $12,500 |
| Septic Inspection | 0 | $150 to $900 |
| Septic System Design | 0 | Varies by site |
| Perc Test and Soil Evaluation | 0 | $250 to $1,000 |
| Well Drilling | 1 | $5,500 to $35,000 |
| Well Pump Repair | 3 | $1,000 to $2,500 |
None of the listings based in Knox County hold a license class we can match to septic tank pumping, septic system installation, septic inspection, septic system design or perc test and soil evaluation. Ask any contractor whether they do this work, or try a nearby city.
Hiring a well and septic professional in Knox County
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.