Koster, founded in 1982, are industry specialists in the development and production of high quality waterproofing products and systems.
As waterproofing specialists, our products protect and preserve buildings and structures world-wide. Whether the project at hand is the restoration of a heritage building, waterproofing of a new construction, or the repair of failed waterproofing, you can be assured Koster´s comprehensive and broad product program offers the optimal solution.
In order to always be one step ahead, Koster continually develop new products. Our current product range comprises of bituminous basement waterproofing for the positive side, crystallizing sealing slurries for the negative side, waterproofing for tanks and tunnels, restoration plasters, horizontal barriers (damp barriers), anti-mold systems, crack injection and crack repair systems, concrete repair and protection products, concrete and mortar additives, cementitious screeds, floor coatings, moisture control systems, joint sealants, bathroom waterproofing, facade impregnation, as well as TPO and ECB roofing membranes.