Installation and repair of heating, plumbing and ventilation systems, as well as maintenance and servicing of such systems. Additionally, trade in products of all kinds in the field of heating, plumbing and ventilation technology. The company may establish branch offices, participate in other domestic and foreign companies, acquire or merge with similar or related companies, acquire or sell real estate, and enter into all transactions and contracts that are suitable to promote the purpose of the company or are directly or indirectly related to it. Furthermore, the company may establish branch offices in Switzerland and abroad, participate in other domestic and foreign companies, acquire or merge with similar or related companies, and enter into all transactions and contracts that are suitable to promote the purpose of the company or are directly or indirectly related to it. The company may also acquire, manage, encumber and sell real estate, intellectual property rights and licenses of all kinds.