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
Basement Waterproofing in Glendale Heights, IL
Perma-Seal waterproofed our lower level, did more than was contracted for without additional cost.They were very concerned about our comfort during the process.
Foundation Repair in Wheaton, IL
These two employees (James A. and Bill H) are great examples “role models“ of what client services should be, I know you advertise this but it is VERY TRUE! Both of them took time to not only answer ...
Waterproofing in Des Plaines, IL
They were very competitive in pricing, I got more for less than the other top basement waterproofer. We needed the interior drain system, and got our cracks filled in the walls and a bubbler ...