Dortmunder Gußasphalt GmbH & Co. KG has been a leading manufacturer of bituminous construction materials for more than 40 years. As the dga-Group, we produce a wide range of products for road construction and building protection at five sites: Dortmund, Düsseldorf, Greiz, Großröhrsdorf and Vierlinden.
Research and development
Our success as one of the leading producers of bituminous products for road construction and building protection purposes rests on several pillars. Decades of experience and in-depth expertise are just two of them. The continuous improvement of our products and processes and the development of ever more efficient building materials have also fuelled our growth.
We owe our strong market position in the road construction and building protection segments to our successful quality policy. Our customers have our full support throughout all stages of their project, including in-depth consulting, the development of customised solution and the delivery of the final product, ready for processing. Their planning security benefits from our reliability as a supplier.