Herr Septic & SewerSeptic service company in Oconomowoc, WI

Herr Septic & Sewer is ranked #1 of 36 septic service companies in Oconomowoc by CR Score, with 59 out of 100 as of November 2026. The score weighs reputation, credentials, review volume, recency, availability, trade focus, proximity, claimed profile, partnered and ContractorsRanked reviews. No business can pay to change its rank.

Serves Oconomowoc and 11 towns within 25 miles: Delafield, Hartland, Pewaukee, Waukesha, Mukwonago, Sussex, New Berlin, Brookfield, Muskego, Tichigan and Elm Grove. The list is based on the business's location and the usual service radius for septic and sewer service. Confirm your address is covered when you call.

Herr Septic & Sewer has a rating of 4.9 from 35 Google reviews. The CR Score adjusts the star rating for review count, so a high rating from a few reviews counts for less than the same rating from many.

Call Herr Septic & Sewer on (262) 968-2550. The business is at S15w33670 Wolf Rd, Oconomowoc, WI 53066. Its website is linked in the key facts on this page. Ask for a written estimate before any work starts.