The core activity of Courtine & Heritier SA consists of planning, installing and maintaining technical systems in buildings, particularly in the field of building services, as well as carrying out work on the building envelope. Specifically, this includes: installation and maintenance of heating systems (oil, gas, heat pumps, solar systems), sanitary technology, ventilation systems, energy efficiency measures (Minergie), planning and execution of roofing work (Couverture, Ferblanterie, Revêtement de façade, Toiture bardeau mélèze), sealing work (Etanchéité), and renovations and conversions of buildings. The company thus offers a comprehensive range of services in the field of building technology and envelope.