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3rd Generation

Family-Owned Business

Waterproof.com LLC is a third generation family-owned and operated company based in St. Paul, Minnesota. Our original do-it-yourself baseboard channel system was the first time a homeowner had access to a contractor-grade basement waterproofing solution! We've empowered thousands of homeowners to take things into their own hands to create additional living space while saving them thousands of dollars. Today we’ve helped over 10,000 homeowners dry up their wet basement for under $1000!

1989 feature in
"This Old House" Magazine


    *Free shipping on select items totally $225 or more. Free shipping available on SquidGee Dry System, UnderGround Downspout single kits and parts, and Crack Foundation Repair. Excludes DIY Pro Sump Pump Kit, Master Cartons of Debris Filters and UnderGround Downspouts. Cannot be applied to previous purchases and cannot be redeemed for cash. Free shipping automatically applied at checkout. Valid on orders shipping to the continental U.S. Return requests must be made in accordance with our return policy. Terms are subject to change.

As Seen In...

We've been featured on the This Old House program as an ideal solution to dry up your wet basements! We've also been featured in The New York Times, The Wall Street Journal, Handyman Magazine, Ask Tool Talk, Today's Homeowner and Waterproof! Magazine.


There is over 7,000,000 feet of our baseboard-style systems installed across the United States and Canada! Our systems have been installed at the Hoover Dam, Fort Knox, US Embassy, several universities and colleges across the US. Below are a few highlights in our family business over the past 50 years!

All of our exclusive basement waterproofing products are manufactured right here in the United States! NO generics!

Our Company History Since 1965...

October 1967

Granted Our First Patent!


Robert “Bob” L. Cotten filed for a patent on his Beaver Basement Water Control System. Two years later, in October 1967 Patent 3,344,569 was granted. By 1977, Bob Cotten developed a national network of contracted installers of his Beaver Basement Water Control Systems.


Second Generation


In the early 70's Ken Cotten started work for his father, installing the Beaver systems by day and selling systems in the evenings. Ken now has over 25 years experience in basement waterproofing with 19 years of marketing experience through selling our products in national home centers, 15 years experience in direct marketing and 12 years experience in product development.


Order Factory Direct Online


With the birth of the Internet, we built our first company website and began selling our products directly to homeowners saving them thousands of dollars! This was the first time homeowners had the ability to waterproof their basement a professional-grade system basement giving homeowners the opportunity to expand their living space!


Expanding Our PRO Systems


We introduced the first hybrid basement waterproofing system called the Fast Track to our network of professional contractors.

June 2009

Third Generation


After graduation from the University of Wisconsin-Stout with a major in Business, Kitty Cotten joined her father in the family business.

Waterproof.com | Basement Waterproofing Since 1965

Questions? Call our PROs!

(651) 644-2000

 Basement waterproofing since 1965. Family owned and operated. Made in the USA.

Formally Beaver Industries.