We Fix All Types of Waterproofing Failures

© Mr. Sponge Waterproofing, Inc. ® All Rights Reserved.

Recent repair of a contractor repair in 1993 where they used tar and newspaper.


Stopping water from entering through poured cement foundation walls is Mr. Sponge’s specialty. We repair wall cracks, tie rods, honeycombs, and I-Beam leaks. We instantly stop water entry by injecting our proprietary SP-3 Water Activated urethane under high pressure into the path of water entering your basement.

Mr. Sponge is owner-operated; this means you get the owner on every job. We are not a franchise operation, but rather a Michigan-based corporation that brings solutions to homeowners from a local source.

Our proprietary blend of SP-3 urethane was developed in 1996. It brings a high performance in water-activated sealing solutions for our customers. Tested and applied for over 20 years, both private and commercial clients have seen their basement leaks disappear. On the commercial side of our business, we have clients with more than two decades of history with Mr. Sponge; they continue to use our sealing techniques and services today for their numerous properties.

On the national level, we have developed the first and only tie rod leak repair device, which allows homeowners to fix their leaking tie rod holes on their own time. Currently sold in 35 states, the TRX Compressed Swell Plug has continued to grow on a national scale.

If you are looking for a specialized owner-operated company to fix your leaks, you have found your solution in Mr. Sponge. We look forward to helping solve your basement leak problems.

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