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Learn about our screening process

24 Years In Business

Company Details

  • Verified Licenses


N67W35263 County Road K
Oconomowoc, WI 53066


  • Mon: Open 24 Hours
  • Tue: Open 24 Hours
  • Wed: Open 24 Hours
  • Thu: Open 24 Hours
  • Fri: Open 24 Hours
  • Sat: Open 24 Hours
  • Sun: Open 24 Hours
View All Details & Credentials


Service Details

  • Residential Work
  • Small Jobs Welcome

Areas of Expertise

  • Basement Waterproofing
  • Egress window install
View All Offerings and Cities Served

Cost Information

  • Free Estimates
  • Warranty Offered
  • Credit Cards Accepted


27 Verified Reviews
  • 5
  • 4
  • 3
  • 2
  • 1

Highly rated for

  • Quality
  • Value
  • Customer Service
Showing 1-10 of 27 results
5.0 Heather N. West Bend, WI

All the people I worked with from the lady who did the estimate to the scheduler then the guys that came out to my house to do the work were all very nice, helpful, understanding and professional. They answered all my questions and did a very good job in my basement. Overall, I am very happy with the work and the people I dealt with at Rion. I recommend this company to anyone who needs basement waterproofing.

5.0 Carlene J.

It was a big job they worked hard and prompt. They did an excellent job.

4.5 Cindy S. Milwaukee, WI

Very nice & professional, work was done quicker than I expected

5.0 Gerald M. Elm Grove, WI

Very pleased with egress window installation. Crew did a great job and were good about protecting my lawn and not making a mess. Quote was very reasonable good customer service and follow up. Will recommend Rion waterproofing to others

5.0 Steve M. Mukwonago, WI

Professional, knowledgeable, hard-working crew.

5.0 Don T. Hartland, WI

I could not be happier. They guaranteed their work and lived up to it. At all times very responsive, easy to talk to and never hesitated when a call back was necessitated. We are completely satisfied.

5.0 Pat W. Oconomowoc, WI

i trust them!!!

5.0 Travis M. Menominee Falls, WI

They installed an egress window for me. They did a great job and were good about protecting my lawn and not making a big mess. they were also my lowest quote.

4.0 Daniel M. Waukesha, WI

Good experience overall

5.0 Cynthia M. Milwaukee, WI

The weather interfered the day they were first to come and utilities didn’t measur and m ark in a timely matter but Rion came on time left when they said they would. They were clean and cleaned up and the workers were nice and considerate, especially with my neighbors I was concerned about hiring a basement waterproofer but I would recommend them without reservation. I love my egress window. What a difference it makes.


Rion, LLC
Egress window install
Carleen J watertown
Randys K Racine

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Seal of Approval

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  1. Verify Trade License
    HomeAdvisor checks to see if the business carries the appropriate state-level license.
  2. Verify Insurance
    As a part of our screening process, we encourage professionals to carry general liability insurance. We require coverage for hundreds of services.
  3. Verification of State Business Filings
    For business types that require a Secretary of State filing, we confirm that the business is in good standing in the state in which it is located.
  4. Criminal Records Search
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  5. Sex Offender Search
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  6. Bankruptcy Search
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  7. Legal Search for Civil Judgments
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  8. Liens Search
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  9. Identity Verification (SSN)
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  10. Identity Verification (Reverse Phone Lookup)
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