Planning, installation and sale of products in the field of building technology, in particular heating systems of all kinds, ventilation and refrigeration systems, pipeline construction as well as sanitary installations. The company can expand its activities to related industries, acquire, sell and manage properties, and acquire or participate in similar or identical companies. The company can establish branch offices and subsidiaries in Switzerland and abroad. It can also provide financing for its own account or for third-party account, as well as guarantees and sureties for subsidiaries and third parties.