The core activity of Oberland Haustechnik GmbH is the provision of services in the field of building technology, particularly in the following areas: Heating: installation, maintenance and repair of heating systems Sanitary: installation, repair and maintenance of sanitary facilities Ventilation: installation and maintenance of ventilation systems Energy efficiency: consulting and implementation of measures to improve the energy efficiency of houses Emergency service: 24/7 service for unexpected problems with building technology Consulting: planning and implementation of building technology projects Overall, the company focuses on the installation, maintenance and repair of building technology systems as well as consulting and optimizing energy efficiency and comfort in homes.