A wet basement is a symptom, not the problem. We find the root cause and install a system that keeps it dry, backed by a written warranty.
Takes 30 seconds. We call you back within 2 business hours.
We never share your information. No obligation, no pressure, no sales pitch.
Most basements leak for a handful of reasons, and most failed repairs happen because someone treated the water instead of the cause.
Chicago clay holds water against your foundation. Freeze-thaw cycles open cracks a little wider every winter. Over time, hydrostatic pressure forces that water through the smallest gap it can find.
We diagnose which of these is happening in your home, then design a drainage and sealing system matched to it. That is the difference between dry this month and dry in ten years.
A quick guide. When in doubt, the free inspection settles it, and we tell you the truth even when the answer is that you can wait.
A little humidity or a faint musty smell in the wettest weeks, no standing water.
Water tracks in along the floor or a wall after heavy rain, then dries out.
Pooling water, a failed sump, or a finished basement getting wet.
We find the root cause and explain it in plain language.
A fixed price up front, no hourly billing, no pressure.
Our own trained crews install the waterproofing system.
You get it in writing and we stand behind it.
Naperville, IL · interior drainage system
Oak Park, IL · drainage and sealing
Evanston, IL · membrane and vapor barrier
"Honest and fair. They fixed the crack two other companies had misdiagnosed, and explained every step."
"Two companies wanted to rebuild the whole wall. Perma-Seal stabilised it with carbon fibre in a day, half the price."
"No pressure at the inspection. They found the root cause, gave a fixed price, and the basement has been dry ever since."
"They showed up on time, respected the house, and the sump system has handled every storm since."
"Same crew from start to finish, all in writing. After 40 years in business, you can tell they know foundations."
"Straight answers and no upsell. The written warranty gave us real peace of mind. Worth every penny."
Tell us what you are seeing. We will call you within 2 business hours to schedule your free, no-pressure inspection.
We call you back within 2 business hours.
We never share your information. No obligation, no pressure, no sales pitch.