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
Preventive Maintenance in Maywood, IL
Your technician, Alvin McAdory, Jr. was very professional and conducted his maintenance service in a way that reflects on Perma-Seal in a very positive way. He explained what was done and made ...
Foundation Repair in La Grange Park, IL
One wall of our garage was sinking. Perma-seal diagnosed the problem and suggested a solution. They poured piers to support the sinking wall. It was not cheap, but I believe the solution was the ...
Waterproofing in Evanston, IL
We have heard Permaseal advertisements for years ... particularly impressed with the transferable warrantee. The salesperson oversold the service because I didn't need any convincing.      We were ...