Basement Waterproofing

Over the years, Charter Oak Environmental has applied innovative basement waterproofing expertise to a wide range of residential and commercial space. Charter Oak Environmental is an authorized contractor of Grate Products, a leader in providing high-tech, reliable, and proven basement products. 

Using high quality basement waterproofing products and a staff that has encountered and conquered virtually every waterproofing challenge imaginable,  delivers effective solutions for all waterproofing needs. At Charter Oak Environmental , you will find an indispensable source of ideas and industry know-how.

Our basement waterproofing process and product performance is unmatched in the basement waterproofing industry. All of our employees have received certified training through the Grate Products network. Commitment and experience of our people allows for the high level of customer service and customer satisfaction.

The heart of our closed basement waterproofing system is an ingenious dual chamber drainage channel, GrateDrian, that is unique in the industry and provides a way to draw water both from the outside walls as well as from the center of the basement.


Placed in a shallow trench, they work together with a specially designed vapor barrier, to direct all water into a drainage conduit. Access ports, strategically located along the system allow for easy inspection to make certain the system continues to work efficiently for years.