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 36 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 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

Basement Waterproofing in Barrington, IL

We had a very friendly and knowledgeable sales person and installers. We are completely satisfied thus far with the work completed and we would recommend Perma-Seal to our friends and family.

Alyssa C. - Barrington, IL 60010
Basement Waterproofing in Saint Charles, IL
The Perma-Seal crew did a good job waterproofing my basement. You waterproofed my basement one week before our record rainfall and I had not one drop through those fixed cracks! (read actual letter) ...
John Eckler - Saint Charles, IL 60174
Crawl Space in Northbrook, IL
I am delighted with the work and the results. I was sorry my house foundation needed the work, but the workers and the work they did is outstanding!
Joan Bossert - Northbrook, IL 60062