The core activity of HADE GmbH is the execution of works in the field of flat roofs, building sealing and sheet metal work, in particular: New construction and renovation of flat roofs, Sealing of buildings, including basement sealing, joint sealing and surface sealing, Sheet metal work, including flat roof sheet metal work, roof and protective strips as well as lightning protection, Greening of flat roofs, Application of liquid plastics and coatings. The company also offers services in the field of service and maintenance, including roof service, maintenance of garden slabs and sheet metal work, as well as inspection and fall protection.