Zero Perm LinerPerma-Seal's Zero Perm Liner has a 60 mil thickness and a foil backing, which will dramatically reduce the humidity level in the air, and it will not support mold growth. The waterproof liner will direct your water seepage or excess moisture to the drainage system that we install in your crawl space, which is connected to a sump pump. Because it reflects heat, it can help insulate your crawl space and keep your living space floors warmer.
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Perma-Seal's Zero Perm Liner
Zero Perm Liner installedClick here to schedule an estimate
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Perma-Seal has served Chicagoland and Northwest Indiana for over 30 years.
Perma-Seal has helped over 250,000 homeowners just like you.
Perma-Seal is recommended by Lou Manfredini, National Home Improvement Expert. 
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Perma-Seal has earned an A+ rating with the Chicago Better Business Bureau.
Perma-Seal has earned an Angie’s List Super Service Award for the last 9 years.
Perma-Seal has been a winner of the BBB Torch Award for Marketplace Ethics.
Perma-Seal’s Roy Spencer received the Ernst & Young Entrepreneur of the Year Award in 2003.
Perma-Seal was named a 2011 Chicago Tribune Top Workplace in Illinois.
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