Whether the subject is restoration of a heritage building, waterproofing of a new building, reinstalling failed horizontal barriers in masonry, restoration of wet basements, or waterproofing of roofs and facades, rest assured; with our comprehensive and deep product program KÖSTER have the optimum solution. Environmentally friendly products of the highest quality. KÖSTER BAUCHEMIE AG, a responsible producer, takes great pride in preserving the environment by developing and producing environmentally friendly products through a resource saving production. Regular monitoring by third party laboratories and test certificates confirm the commitment and quality of KÖSTER BAUCHEMIE AG.