Proven waterproofing systems since 1979

Your Basement Solution in Chicago

Perma-Seal has been the most trusted basement waterproofing contractor and foundation repair specialist serving Chicago and Northwest Indiana for over 37 years. Our informative video featuring Perma-Seal Founder, Roy Spencer and National Home Improvement Expert, Lou Manfredini will help you understand how and why Perma-Seal is dedicated to providing you with a superior customer experience and the greatest value for your home.

Our Vision is:

To Make the World a Better Place

Our Mission is:

To build a sustainable organization that is dedicated to...

  • Providing a superior customer experience and the greatest value.
  • Doing the right thing for our Clients, Tribe, Partners and Community.
  • Continual improvement through innovation and self-evaluation.

Featured Reviews

Average rating for Perma-Seal is 5 stars of 5 stars - based on 208 reviews
Foundation Repair in Bloomingdale, IL
Tony from Perma-Seal was very thorough and explained about the problems with our foundation and what corrective actions should be taken to resolve the issue step by step. Very exceptional! (read ...
Basement Waterproofing in Saint Charles, IL
Perma-Seal was so nice to come to St. Charles and work on our house. I will highly recommend them for sure! (read actual letter) ...
Basement Waterproofing in La Grange Park, IL

The Perma-Seal consultant was very informative and patient, and the crew was quick and very clean when they worked on my basement. The finished product looks beautiful!