GroundRosterLicensed Well and Septic Contractors: Fond du Lac County, WI
11 licensed well and septic pros based in Fond du Lac 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 Wisconsin DNR - Licensed Water Well Drillers / Registered Well Driller Businesses, Washington County POWTS Program and Walworth County POWTS Program. Roster copy last refreshed 2026-08-19.
Towns in Fond du Lac County
All 5 towns named on the license records based here, with the number of listings in each, most first.
License classes on the Fond du Lac 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 11.
| License class | Trade | Listings |
|---|---|---|
| POWTS Installer | Septic | 4 |
| Registered Well Driller Business | Well | 3 |
| Septic/Holding Tank Pumper | Septic | 2 |
| Licensed Well Driller | Well | 1 |
| Soil Tester | Septic | 1 |
Septic Contractors based in Fond du Lac County (7)
Johann, Tom
Matenaer Plumbing Inc
Laudolff Excavating & Septic Service
A-1 Soil Testing
Ziegelbauer Septic
King, Jason
BWS Plumbing
Water Well Contractors based in Fond du Lac County (4)
Jeffery L Zielieke, Licensed
Badger Well Drlg INC, Licensed
Central Well And Pump Service INC, Licensed
Zielieke Well Drilling INC, Licensed
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Looking for a specific contractor? Search by name, business name, or license number.
Services in Fond du Lac County, with national cost ranges
Listings based in Fond du Lac County whose license class covers each service. Cost ranges are national; each links its cost guide.
| Service | Based in Fond du Lac County | National cost |
|---|---|---|
| Septic Tank Pumping | 2 | $250 to $600 |
| Septic System Installation | 4 | $3,600 to $12,500 |
| Septic Inspection | 0 | $150 to $900 |
| Septic System Design | 0 | Varies by site |
| Perc Test and Soil Evaluation | 1 | $250 to $1,000 |
| Well Drilling | 4 | $5,500 to $35,000 |
| Well Pump Repair | 0 | $1,000 to $2,500 |
None of the listings based in Fond du Lac County hold a license class we can match to septic inspection, septic system design or well pump repair. Ask any contractor whether they do this work, or try a nearby city.
Hiring a well and septic professional in Fond du Lac 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.
Do I need a permit for well or septic work in Wisconsin?