Execution of sanitary, plumbing, roofing and renovation works as well as planning and installation of photovoltaic systems. The company may establish branches and subsidiaries in Switzerland and abroad, participate in other companies in Switzerland and abroad, acquire or establish similar or related companies, acquire, hold, encumber, sell and manage real estate, and enter into all transactions and conclude contracts that are suitable to promote the purpose of the company or are directly or indirectly related to it.