Licensed Septic Companies in Wisconsin
The Septic Guide lists 29 septic companies and licensed septic professionals in Wisconsin (data as of October 2026).
Septic companies by county
Septic services in Wisconsin
Counts of Wisconsin listings by service, from each business's own website or the type of state license it holds.
Who licenses septic work in Wisconsin?
Wisconsin has no separate septic installer license; private onsite systems are installed under plumbing licenses and maintained by licensed POWTS maintainers.
Credentials: Master plumber (installation); POWTS maintainer.
Agency: Wisconsin DSPS.
Other Wisconsin listings
Septic companies and licensed professionals in areas without their own page yet. Listings in the counties and towns above are on those pages.
Brown County 3
-
AAA Sanitation
1334 Mid Valley Dr, De Pere, WI 54115
From their website: Pumping · Grease traps
-
Royal Flush Plumbing Service LLC
735 Coronis Cir, Green Bay, WI 54304
From their website: Installation
-
Stordeur Sanitation
1455 Cornell Rd, Green Bay, WI 54313
From their website: Pumping
Dane County 4
-
A-1 Sewer Service Inc.
6470 Lake Rd #1, Windsor, WI 53598
From their website: Grease traps
-
Dvorak Pumping, L.L.C.
2551 Nora Rd, Cottage Grove, WI 53527
From their website: Pumping · Inspection · Repair · Grease traps
-
Meinholz Excavating Inc.
7290 Muskie Dr, Dane, WI 53529
From their website: Perc testing
-
Septic Services in Madison
4447 Robertson Rd, Madison, WI 53714
From their website: Pumping · Installation · Repair
Door County 1
-
Septic Maintenance, LLC
1100 Shiloh Rd, Sturgeon Bay, WI 54235
From their website: Pumping · Repair · Grease traps
Green County 1
-
Southern Wisconsin Septic Service
704 4th St, Albany, WI 53502
From their website: Pumping · Installation · Inspection
Jefferson County 1
-
Phoenix Sewer & Septic LLC
Hills Rd, N3299 Rome Oak Hill Rd, Helenville, WI 53137
From their website: Pumping · Repair
Kewaunee County 1
-
Pelishek Sanitation
N2309 St Peters Rd, Kewaunee, WI 54216
From their website: Pumping
Marathon County 1
-
Green Valley Septic
229933 Cloverbelt Rd, Wausau, WI 54403
From their website: Pumping · Grease traps
Marinette County 1
-
Dyer, Inc.
1025 W Fischer Lk Pkwy, Niagara, WI 54151
From their website: Pumping · Installation · Inspection · Repair · Drain field
Milwaukee County 2
-
Quick Fix Septic
2759 S 28th St, Milwaukee, WI 53215
From their website: Pumping · Installation · Repair
-
Roto Rooter Plumbing & Drain Service
11030 W Lincoln Ave, Milwaukee, WI 53227
From their website: Inspection
Outagamie County 2
-
Bay Area Plumbing & Septic LLC
N, 8556 Woodland Dr, Seymour, WI 54165
From their website: Inspection · Repair
-
Geenen's Liquid Waste
N4991 County Rd C, Seymour, WI 54165
From their website: Pumping · Grease traps
Ozaukee County 1
-
Arnold's Sanitation Technologies, LTD.
2985 Wi-33, Saukville, WI 53080
From their website: Pumping · Inspection · Repair · Aerobic systems · Risers & lids · Grease traps
Walworth County 1
-
Senft Septic Pumping Service
N6832 Lake Lorraine Rd, Delavan, WI 53115
From their website: Pumping · Inspection · Repair · Risers & lids
Washington County 2
-
Rural Sanitation, Inc.
4380 Sherman Rd, Slinger, WI 53086
From their website: Pumping · Inspection · Grease traps
-
Schulteis Pumping LLC
151 James St, Slinger, WI 53086
From their website: Pumping · Installation · Repair · Aerobic systems · Risers & lids
No listings match those filters.
Septic companies in Wisconsin: common questions
How many licensed septic companies are in Wisconsin?
The Septic Guide lists 29 septic companies and licensed septic professionals in Wisconsin (data as of October 2026).
Do septic contractors need a license in Wisconsin?
Wisconsin has no separate septic installer license; private onsite systems are installed under plumbing licenses and maintained by licensed POWTS maintainers.
How do I check a septic license in Wisconsin?
Search the contractor on the Wisconsin DSPS's lookup (https://dsps.wi.gov). Every license badge in this directory links to the agency's own lookup.