Wisconsin Pump & Sump

Licensed septic contractor based in Grafton, WI

"Based in" is the city on the business's state license record. That can be a mailing address; it doesn't tell you where the business works.

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What this license covers

• Pumping / cleaning: licensed to pump out and clean septic tanks, service them, and haul the waste.

How to verify this license

We publish the license details exactly as they appear in Wisconsin's official licensing records; we do not vouch for the business itself. Before hiring, look up this license directly with the state, confirm it is still active, and ask for a current certificate of insurance.

Source: Washington County POWTS Program, last checked 2026-08-19. Verify at the official source.