GroundRosterLicensed Septic Contractors: Dunn County, WI
26 licensed septic contractors based in Dunn 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 Dunn County POWTS Program, Chippewa County POWTS Program and St. Croix County Community Development Department. Roster copy last refreshed 2026-08-19.
Towns in Dunn County
All 5 towns named on the license records based here, with the number of listings in each, most first.
License classes on the Dunn 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 26.
| License class | Trade | Listings |
|---|---|---|
| Septic Pumper | Septic | 14 |
| Plumber | Septic | 6 |
| Plumber/Soil Tester | Septic | 2 |
| Plumber, Septic Pumper | Septic | 1 |
| Plumber, Septic Pumper, Soil Tester | Septic | 1 |
| Plumber, Soil Tester | Septic | 1 |
| Soil Tester | Septic | 1 |
Septic Contractors based in Dunn County (26)
Seventy-Nine Septic/ABC Septic
H & H Plumbing
ABC Septic
Myers Septic Service, LLC
JB Hydro, LLC
Damien Oberle
T.L. Sinz Plumbing, Inc
Daniel Hoage
T.L. Sinz Plumbing
Randy's Septic
Anderson Sanitation
JB Hydro
Lewis Bjork LLC
Loretta Larrabee
L & L Perk Testing
ABC Septic (E742 Hwy 12)
Myers Commercial Pumping, LLC
Lewis Bjork
H & H Plumbing
Halverson Brothers
Rogers Plumbing
Michael J Pechmiller
Legendary Plumbing
Paul R Koehler
Lewis Bjork, LLC
Licensed by Dunn County
Dunn County issued these businesses' licenses, but the address on their license record is not in Dunn County.
Avalon Septic Service, LLC
Becker Septic Service
Bishel's Septic Sevice
Care Sanitation
Cesspool Cleaner Company
Chippewa Septic Sevice, Inc.
Countryside Septic Service LLC
Darrell's Septic Service, Inc
Dregney's Sewer Service
Dropzone Septic
Earl Lubinsky Plumbing
Jeff's Sewer Service, LLC
Johnson's Sanitation, Inc.
Kevin Bogstad
Marko Septic
Pleasant Valley Septic, LLC
Valley Septic Service, LLC
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 Dunn County, with national cost ranges
Listings based in Dunn County whose license class covers each service. Cost ranges are national; each links its cost guide.
| Service | Based in Dunn County | National cost |
|---|---|---|
| Septic Tank Pumping | 16 | $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 |
None of the listings based in Dunn County hold a license class we can match to 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 septic contractor in Dunn County
Septic (onsite wastewater) contractors handle everything from routine septic tank pumping and cleaning to repairs, inspections, and new system installation. States license each role separately (a pumper is not necessarily licensed to install, and vice versa), so match the license class to the job.
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?