Expert Septic Service in Oshkosh

Black-Haak is a team you can trust for any septic service in Oshkosh, WI. Our family-owned and -operated company wants people living in this Winnebago County city to have complete confidence in their septic systems. Our plumbers are highly experienced and ready to work on all makes and models of septic tanks. You can rely on us to get everything cleaned out and properly adjusted.

Our company is known for:
  • Serving area residents since 1956
  • Offering 24/7 emergency availability
  • Providing a 100% customer satisfaction guarantee
  • Highly skilled plumbers

We understand the importance of a fully functional septic system, so we never cut corners with our workmanship. Our septic plumbing services are reasonably priced for our Oshkosh customers. We can give you a cost estimate for any job before we get started.