The core activity of A.&L. Corthésy Sàrl encompasses the installation, maintenance, and repair of heating systems, sanitary facilities, and renewable energy systems. Specifically, this includes: Heating systems: boilers (oil, gas, pellets, or wood), hot water preparation, radiators, underfloor heating, and solar systems Sanitary facilities: installation and maintenance of sanitary systems Renewable energies: pellet or wood-fired boilers, heat pumps, and solar systems The company thus offers a comprehensive range of services in the field of building technology and renewable energies.