The core activity of Zahner Metallbau is metal processing and treatment, particularly in the areas of: metal construction work (e.g. doors, entrances, canopies, light steel structures, railing construction, staircase construction), sheet metal processing (e.g. sheet metal work, fire-resistant doors), locksmithing, and custom-made products (e.g. raised beds, railings, glazing). The company thus offers a wide range of services in the field of metal processing and treatment, positioning itself as a specialist for individual metal construction projects.