Metallbau Chrostowski designs, manufactures and installs custom steel structures and metal fencing for homes, apartment buildings, gardens and businesses. Its products include balcony extensions, metal stairs, fire-escape stairs, railings and handrails, ramps, terrace roofs, carports and individually designed projects. The company offers both classic and modern fence styles, combining practical security with an attractive finish. Before fence work begins, customers can request a free site measurement and a detailed cost estimate.

For longer-lasting surfaces, Metallbau Chrostowski also provides powder coating for private and commercial customers. Its coating facility can handle large items measuring up to 1,400 × 2,800 × 12,000 mm. The company states that its welders hold European certificates and that its structures are produced in accordance with EN 1090-2:2018; its welding process follows EN 1090-1:2009 requirements, and it is classified as execution class EXC 2. Based in Cychry, Metallbau Chrostowski serves customers in Berlin and Brandenburg and offers free quotations for projects.