The core activity of Elektro Daniel Pfenninger AG is the planning, installation and maintenance of electrical systems in buildings, facilities and outdoor areas. This includes in particular: electrical installations (cabling, sockets, switches, lighting, protective devices), service and repairs in all areas of electrical engineering, specialized areas such as lighting renovations, LED lamps, telephone installations, solar systems and eMobility systems, as well as maintenance and upkeep of electrical systems in residential buildings, commercial establishments, industrial plants and public facilities.