Theis Septic Service
septic
Serving Winona, MN
From Google Business Profile
4.9
16 Google reviews
Google categories: Septic system service
View on Google Maps →Last checked October 13, 2026.
More from Google Business Profile
Photos on Google: 5
Recent Google reviews (excerpts)
Written by Google users, not by EdgeLocal. EdgeLocal has not verified them and does not show reviewer names.
5 out of 5 stars · Aug 2026
He always comes and pumps our RV holding tanks when we're in town, and does a great job of balancing the flow/suction. He always has a smile on his face, is polite, just a nice guy!
5 out of 5 stars · May 2023 · Owner replied
We have used Theis Septic Service twice now and I have been very impressed. He is always willing to answer questions and is beyond knowledgeable. They are quick to call back and go above and beyond what is expected. Highly recommend for…
5 out of 5 stars · Mar 2022 · Owner replied
Mr. Theis was punctual, professional and took excellent care with pumping our septic tank. I greatly appreciated his efforts helping our little country home. I will be utilizing his services again this year.
The owner replied to 4 of the 5 most recent reviews Google showed.
From Google Business Profile, last checked October 13, 2026.
About septic system services in Winona
Septic services pump, inspect, repair and install septic systems. Septic contractors pump tanks, perform inspections for home sales, repair baffles and lines, and design and install new tanks and drain fields that meet county regulations.
Typical cost: $350–$12,000 from routine pumping to system replacement. See the full cost guide
Typical U.S. ranges from industry sources (2024–25); not EdgeLocal data. Your quote will vary with scope, materials and location.
Questions to ask this contractor
- Confirm certification: Many states certify septic installers and inspectors.
- Ask about inspection reports: Get written condition reports.
- Check county permits: Installations require county permits.