Planning, creation and maintenance of building technology systems in the areas of sanitation and heating, sale and trade of related products, as well as provision of services in these areas. May establish branches in Switzerland and abroad, participate in other companies in Switzerland and abroad, acquire or establish similar or related companies, acquire, manage, broker or sell licenses, patents or other intangible assets, 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.