Theis Septic Service

507.454.2436 or 507.458.8800

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Theis Septic Service has been in business for over 35 years serving all of Winona County. We provide the best septic tank pumping service in the area and is your go-to company for septic tank cleaning. Theis Septic Service pumps, cleans and empties your septic tank properly to ensure a longer life for your septic system. Our customers are happy and we attribute our success as a company to our attitude about cleanliness and the overall customer experience. Our prices are fair and our service is superior. This is our ONLY business, making us the area experts. We understand the mechanical working of nearly every type of septic system and are available to answer any questions you have. Please allow Theis Septic to provide you with your next Septic Pumping!


  • Septic Tanks Pumped & Backwashed
  • Residential & Farm
  • Septic Tank Lid Replacement and Riser Ring Installation
  • Tank Location
  • Yes! We pump in the Winter
  • Reminder Cards send out every year
  • Emergency Service Available

Theis Septic Service is fully insured and bonded and we are committed to the environment and community. We are licensed by the Minnesota Pollution Control Agency.