The core activity of Jema Tech Sàrl encompasses the planning, installation, and maintenance of heating, sanitary, and renewable energy systems, including the provision of energy consulting and planning solutions. The activities specifically include: Heating: installation and maintenance of heating systems, including heat pumps, wood heating, solar thermal systems, and fossil fuels; Sanitary: installation and maintenance of sanitary facilities; Energy consulting and planning: consulting and planning of energy projects, including the implementation of energy audits and the development of energy concepts; Energy efficiency solutions: installation and maintenance of systems to increase energy efficiency, including remote control of heating systems. The company also offers comprehensive services, including project planning, coordination of craftsmen, and site supervision.