Waterstops are materials embedded in concrete joints to stop the flow of water through the concrete joint. This part of the overall waterproofing design protects below-grade portions of concrete from water and moisture seepage. To be effective, waterstops are placed at every concrete joint.
A. R. Chambers supplies PennDOT approved PVC Waterstops, Hydrotite Waterstops, Envirostop, Waterstop RX-101 and SwellStock. These products are from manufacturers such as Greenstreak, Westec and Cetco. Contact a  A. R. Chambers sales rep for your waterstop needs.