
Certificates and licences
We are a member of the “Gütegemeinschaft Beton“(“Quality Control Association: Concrete“) and of the “Gütegemeinschaft Herstellung und Instandhaltung von Abwasserleitungen und Kanälen e.V.” (“Quality Control Association: Manufacture and maintenance of sewers and drains, reg. assoc.”) we hold as a specialist company many licences and certificates. See the extract below:
- Certified QMS company according to
DIN EN ISO 9001:2008 (Quality management system) - Approved auditors DGNB® for offices, commercial and administrative buildings (“DGNB” German association for sustainable building)
- Proof of suitability (HAVO) for the manufacture and the installation of concrete of the monitoring classes 2 and 3 and other specific properties on building sites according to DIN 1045-3 (“HAVO” Regulation for manufacturers of building products and users of building techniques)
- Certified pipeline construction company according to DVGW GW 301, group W1, G1 (“DVGW” German association for gas and water)
- Quality mark RAL KANALBAU AK2
- Specialist company according to §19 I WHG (Water resources act)
- Certified construction company for long-distance heating pipelines according to AGFW FW 601, group FW1 (“AGFW” Working group heat and power industry)
- Approved welding procedure for concrete steel constructions according to DIN 18800-7, class “E” (Industrial welding fabricator certification)
- Proof of suitability for the welding of steel-reinforced concrete according to DIN 4099
- Proof of suitability (HAVO) for the repair of load-bearing structural concrete elements, the stability of which is endangered
- Certificate for the reinforcing of structural concrete elements by adhering steel straps and carbon fibre reinforced plastic (“CFK”) plates
- Certificate for the safety management system according to “BASF” specifications
- Certified enterprise holding the quality mark for the “maintenance of structures” (“GEB”)

