GroundRosterLicensed Well and Septic Contractors: St. Croix County, WI
33 licensed well and septic pros based in St. Croix 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 St. Croix County Community Development Department and Wisconsin DNR - Licensed Water Well Drillers / Registered Well Driller Businesses. Roster copy last refreshed 2026-08-19.
Towns in St. Croix County
All 9 towns named on the license records based here, with the number of listings in each, most first.
License classes on the St. Croix 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 33.
| License class | Trade | Listings |
|---|---|---|
| Plumber | Septic | 9 |
| Septic Pumper | Septic | 7 |
| Plumber, Soil Tester | Septic | 5 |
| Licensed Well Driller | Well | 4 |
| Registered Well Driller Business | Well | 4 |
| Soil Tester | Septic | 4 |
Septic Contractors based in St. Croix County (25)
Boldts Plumbing
Croix Valley Soil Testing
Schmitt & Sons Excavating
Steel's Soil Service
Knudtson Plumbing
Bell Excavating Inc
Marko Septic
Featherstone Excavating Inc
Power's Liquid Waste Management
Parnell Septic System LLC
Apostle Septic Service
Evergreen Irrigation
Boldt's Plumbing
Northland Plumbing Inc
Red Barn Plumbing
Zappa Brothers Excavating
Ulbricht Pumping LLC
Ron's Sewer Service
Cody Plumbing
Bird Plumbing
Berends LLC
Mondor's Inc Septic
Nechville Excavating
Jim Boumeester
Water Well Contractors based in St. Croix County (8)
LLC Steve's Well And Pump ServicesLicensed
Martell Well Drilling & Pump Repair INCLicensed
Steven Jr FosterLicensed
Gary J HoyerLicensed
Tim Butterfield Drilling INCLicensed
Mitchell D FosterLicensed
Dahl Well Drilling LLCLicensed
Steve Martell Well DrillingLicensed
Licensed by St. Croix County
St. Croix County issued these businesses' licenses, but the address on their license record is not in St. Croix County.
ABC Septic
ABC Septic (E742 Hwy 12)
ACE Site & Soil Evaluation
Advanced Environmental LLC
Advanced Septic Solutions
Barry Bigaouette
Bergh Construction
Bettendorf Excavating
Bob Hardina
Chris Rud
Clarence Glotfelty
Darrell's Septic Service
David C Laird
Donna J Stark
Early Plumbing & Heating
Fredericks Perc Testing
Geo Tech
Gille Septic Pumping LLC
H & H Plumbing
Halverson Brothers
Hardina Septic Systems
Helgeson Excavating
JB Hydro
Jackson Plumbing
Jeff Fox Contracting
Johnson's Sanitation
K.O. Construction
L & L Perk Testing
Legendary Plumbing
Lewis Bjork LLC
Michael Hassett
Mike Nelson Plumbing
Mikes Plumbing
Nelson Plumbing
Ogden Engineering
Randy's Septic
Raska Sewer Service
Rich Halverson
Rogers Plumbing
Russ Ryan
Ryan Plumbing
Steiner Plumbing & Electric
T.L. Sinz Plumbing
Thomas Gustum
Toombs Septic Service
Turner Plumbing
Tyler Langner
Utgard Plumbing & Heating
Walter's Electric
Wang Excavating
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 St. Croix County, with national cost ranges
Listings based in St. Croix County whose license class covers each service. Cost ranges are national; each links its cost guide.
| Service | Based in St. Croix County | National cost |
|---|---|---|
| Septic Tank Pumping | 7 | $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 | 8 | $5,500 to $35,000 |
| Well Pump Repair | 0 | $1,000 to $2,500 |
None of the listings based in St. Croix County hold a license class we can match to septic system installation, septic inspection, septic system design, perc test and soil evaluation or well pump repair. Ask any contractor whether they do this work, or try a nearby city.
Hiring a well and septic professional in St. Croix 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?