Who publishes this directory
We are an independent directory. Listing here is free. We may receive referral fees from businesses. Wisconsin Well and Septic lists well and septic contractors in Wisconsin, compiled from public business listing data.
Why this directory exists
Well and septic work is the kind of job most homeowners hire for once every few years, often in a hurry: a pump that stops on a weekend, a county notice that the three-year inspection is due, or a soil test before building on a rural lot. The usual way to find someone is a search that mixes pumpers, drillers, plumbers and supply stores, with little sign of which ones actually do the job you need.
This directory sorts Wisconsin's well drillers, pump installers and septic companies by county, and shows which jobs each business names, from holding tanks to water testing. The goal is a short list you can call with the right questions in hand, and a plain account of the state rules that shape the work.
How listings are gathered
Every listing began as a public Google Maps business record for a well, pump or septic business in Wisconsin. Businesses that are open and have at least one review stay. Duplicates are merged, and businesses whose own websites or listings showed they do not do well or septic work, such as pump parts suppliers, were removed.
Each business's own website or listing was then read for the jobs it names: well drilling, pump repair, water testing, septic pumping, installation and inspections, holding tanks, soil testing and emergency service, plus any license, warranty or financing it states. A job appears on a listing only when the business's own website or listing named it when we compiled the directory. A license tile means the business states a license. This site does not check licenses.
Each listing marks a job as confirmed only when the business's own website or listing named it when we compiled the directory. Where neither source named a job, the listing shows "not enough info" instead of guessing, so treat that as a question for the first call, not as a no.
Right now that is 344 well and septic contractors in 49 Wisconsin counties, last refreshed 2026-11-11.
Claims, corrections and removals
Listing is free. Owners can claim their listing for free to correct its details. If a listing is wrong, or you want your business removed, tell us and we will rebuild the directory with the change.