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
Waterproofing in Naperville, IL

Great sales and waterproofing service. I am satisfied with the work done.

Basement Waterproofing in Chicago, IL

Allen was very professional and informative with the basement waterproofing project.

Sump Pump in Glen Ellyn, IL
Dear Roy: I remember when you did all of your own work with just one helper. You have built a successful business with good employees and morals. I want to tell you how impressed I was with William ...