The core activity of the company "Robert Schaller Spenglerei & sanitäre Anlagen" encompasses the provision of services in the fields of sheet metal work and sanitary technology. Specifically, this includes: sheet metal work (e.g. gutters, metal roofs, sheet metal cladding), sanitary work (e.g. bathrooms, toilets, showers, drain cleaning, toilet unblocking), roofing work (e.g. roof maintenance, roof repairs, roof windows), construction sheet metal work, chimney hoods, boiler descaling and limescale protection systems. The company also offers a repair service and renovation work.