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Basement Waterproofing and Foundation Repair Chicago & NW Indiana

Perma-Seal has been the most trusted basement waterproofing contractor and foundation repair specialist serving Chicago and Northwest Indiana since 1979.

We have a variety of services available for homeowners to control, repair, and even prevent problems with your foundation, basement, crawl space, sagging concrete and sewer related concerns.

Celebrating Over 40 Years of Making the World a Better Place​

Since we began helping homeowners in the Chicagoland area, we have worked on over 450,000 homes to ensure they are protected from basement and crawl space flooding and unstable foundations. Using products and methods that we have tested and know work for the problems you face in your home, we will provide you with the best available repairs and preventive services in the industry. Perma-Seal guarantees that any product or scope of work that carries a warranty will be serviced free of charge for the entire warranty time frame.

Our Purpose is:

To Make the World a Better Place!

Our Mission is:

To build a sustainable organization.

Our Value Statement:

We accomplish our mission with passion, honesty and integrity.

We Live Our Values:

  • We work hard…Seriously!
  • We act with urgency.
  • We do what we say we will do.
  • We strive to be better.
  • We are compassionate.
  • We inspire creativity, optimism, and fun!
Roy Spencer President Quote

Why Choose Perma-Seal?

We are an industry leader that provides exceptional products installed by expertly trained professionals. Because many of our teammates are from the area and have been working here their entire lives, we know what type of problems to expect and how to appropriately assess and provide the best type of repair for each situation we come across. We treat every job as if we were performing the work on our own home.

Our informative video featuring Perma-Seal Basement Systems 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.

Customer Reviews and Testimonials

I am usually hesitant about having people work in my home, but the Perma-Seal crew was so courteous when they came to seal a crack in my basement and install my backup sump pump. They were so helpful in answering all of my questions, and they cleaned up before they left.

Susan H
Willowbrook, IL 60527
Mike T was able to identify the source of the leak in the basement wall very quickly. He presented the possible solutions and advised as to the most efficient and economical fix. The service call was scheduled very easily and we expect the repair to go smoothly. He also noted issues with the window wells

ron Jones
Joliet, IL 60435
BBB Torch Award
Angi 2021 Super Service Award - Angies List

Perma-Seal is The Recognized Industry Leader!