Basement Waterproofing

Every basement is different. Your foundation may be fieldstone, concrete block or cement. Whatever the case, at some point it will be penetrated by water or moisture and the end result is always the same – a damp, wet, or flooded basement.

Water intrusion can occur anywhere at any time in a basement it is just a matter of when. Unusual seasonal freezes and thaws, earthquakes and settling of the foundation are of the primary causes of water infiltration and typically cannot be predicted.

We provide best-in-class basement waterproofing solutions. Whether you need downspout extensions, minor cracks repaired, a sump pump installed, or a full perimeter basement waterproofing system – we have the products and expertise to keep your basement safe and dry – guaranteed. There are a variety of components to a complete basement waterproofing system.

Basement Waterproofing Solutions

Foundation crack repair.

Foundation Crack Repair

Prior to waterproofing the wall is excavated to the footing and old drain tile is removed. Any cracks in the foundation walls will be repaired and recoated with masonry cement.

Exterior waterproofing.

Exterior Waterproofing

The wall will be coated with Marflex 5000, a heavy duty elastomeric emulsion waterproofing membrane, to seal the wall provideing industry-leading technology at an affordable price. Resistant to freeze-thaw cycles while remaining flexible.

Interior drain tile system.

Interior Drain Tile System

The most effective waterproofing systems are installed on the inside of the home. Interior drainage systems are installed using a central ejection device to get the water from the basement to the outside of the home.

Waterproofing Block And Poured Walls

  • Wall is excavated to the footing and old drain tile is removed.
  • Bleeders are flushed clean or installed if not present.
  • Wall is pressure washed to remove all debris.
  • Cracks in the wall are repaired and recoated with masonry cement.
  • Wall is coated with Marflex waterproofing to seal the wall.
  • Backfilled with ¾ inch washed stone 20 inches from grade covered with a below grade geotextile filter fabric in areas.
  • Finish backfilling trench areas with impervious fill to within 6” of ground surface, place topsoil to finish grade height and pitch.


The most effective waterproofing systems are installed in the inside of the home. When interior drainage systems are installed, they need a central ejection device – a way to get the water from the basement to the outside of the home. Our patent pending Water Grabber® Bull Dog™ is the heart and lungs of our perimeter system. The Water Grabber® Bull Dog™ consists of a patent pending drilled polyethylene basin with a split or solid lid. We use 3/4” gravel to surround the basin and help filter the water. The pumping device is a 1/3, 1/2 or 3/4 H.P. cast iron pump rated at approximately 3,000 – 4,200 gallons per hour and will pump up to 1/2” solids.

Interior Drain Tile System

  • Remove floor along wall area (12” to 18” wide) to be repaired to allow replacement of interior drain tile.
  • Remove existing drain tile and flush with water to sump crock or palmer valve. Check for correct drainage. Check with local jurisdiction if palmer valve is permitted.
  • Replace drain tile at floor removal area with polypropylene drain tile and encase new tile with proper filtering stone.
  • Drill one (3/4 to 1 inch) drainage hole into the bottom of first course per core, under floor line, for block drainage. Holes shall be cleared for proper drainage.
  • MTI Wall drainage board shall be installed at least 1” minimum higher than finish floor height and against first course to assure passage of water flow.
  • Wall drainage board must be able to be sealed off to provide radon mitigation if necessary.
  • Test wall drainage board: Drill holes at the third to fourth block above the footing and every 3 to 4 feet horizontally for the entire wall where possible.
  • Replace floor where removed. Minimum thickness not to be less than 1” from existing thickness.

Basement Waterproofing Gallery

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    S29 W27296 Green Ln
    Waukesha,WI 53188


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    Angie's List.
    Wisconsin Association of Foundation Repair Professionals.

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