Bismac Pty Ltd is a Sydney-based, family-owned building supply company that has been operating since 1979, specializing in the supply and installation of fire-rated doors and associated hardware. With a strong reputation for personalised service, technical expertise, and reliable delivery, Bismac provides a comprehensive range of products including fire-rated doors, solid and hollow core doors, steel door frames (both fire rated and non-rated), cavity sliders, and various seals (including smoke seals). Their on-site machinist enables custom cut-to-size work, edge banding, and glass cut-outs, ensuring precise and tailored solutions.