The GC Gruppe is one of the market leaders in Europe and its core competency is to provide services and innovative products f ... or the entire range of building services from a single source. Sanitary, heating, air conditioning/ventilation, electronics, installation and roof technology. As an international operating family-owned business we are able to combine the capacity of a large-scale enterprise with the flexibility of a regional service provider. Our size and strength as an alliance is beneficial for our employees and for our market partners. read more