1 January 2019 marked the merger of the companies Dortmunder Gußasphalt GmbH & Co. KG, Isoliererzeugnisse Großröhrsdorf GmbH, TEWE Bauchemiegesellschaft mbH and Wm. Hilgers GmbH & Co. KG to form the dga-Group. For our customers, this means better and faster service plus a much more extensive product portfolio.
Our homepage provides a complete overview of our products for road construction, building protection and industry. Do you have any questions or need technical advice? Get in touch with us!