The core activity of Spenglerei Arnold AG encompasses the planning, manufacturing and installation of various types of roof and façade constructions, including: roofing (flat roofs, pitched roofs, tile roofing), façade work (ventilated façades, metal cladding, Eternit façades), sheet metal work (manufacturing and installation of metal constructions), lightning protection systems, and sealing work (e.g. underground parking garages). The company also offers a prompt roof service for quick assistance with damage and repair and maintenance work.