The core activity of Kälin Elektrotechnik is the provision of services in the field of electrical engineering, particularly in the following areas: installation, maintenance and repair of safety technology, including fire alarm and gas warning systems; installation and maintenance of photovoltaic systems; installation and configuration of SmartHome systems; electrical installations for new and renovation projects; and device testing and maintenance. The company offers these services to private and business customers in Switzerland, distinguished by fast and uncomplicated processing.