The core activity of Walter Salzmann GmbH is the provision of services in the field of roofing and sheet metal work, including the planning, execution and maintenance of roof systems, as well as the installation of photovoltaic systems. Specifically, this includes the areas of: Roofing (pitched roof, flat roof, roof windows, roof coverings, roof renovations), sheet metal work (roof structures, metal roofs, dormer windows, snow retention systems), photovoltaics (planning, installation and maintenance of photovoltaic systems), renovations and refurbishments of roof systems, and sealing and insulation of building envelopes. The company offers these services for all types of roofs and is specialized in meeting the needs of customers in the Upper and Lower Engadine.