Installing a French drain is an effective long-term solution for homes dealing with excess surface or groundwater. Sodium bentonite ... membranes applied to the outside of the basement walls.

An interior French drain is a trench ... may not need gutters. Basement foundation walls can be sealed against water with a liquid synthetic membrane, solid sheets of bentonite or synthetic ...

Great Lakes Waterproofing provides complete waterproofing services thanks to their no-digging Bentonite ... basement walls permanently dry. Both their exterior bentonite injection and drain ...