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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

They were here to please and made sure the customer was happy. They were prompt and professional. My husband handles more of the price aspect, so I don’t know what he compared it to. Perma-Seal Basement Systems redid the seal in the crawl space.

Kurt S.
Downers Grove, IL 60516
Doug was a true professional. He came out and provided me with my annual maintenance. He alerted me the Pump and Backup were the original and could be on borrowed time. There was no pressure to purchase, but I decided to replace the pump and back-up. Doug efficiently replaced all components within the hour and

b obrien
Westmont, IL 60559
BBB Torch Award
Angi 2021 Super Service Award - Angies List

Perma-Seal is The Recognized Industry Leader!