Profile: Harlech Industrial Doors Ltd. is a manufacturer and supplier of industrial doors. Our products are roller shutters, fire doors, security gates, and bar shutters. We also offer installation and maintenance services. Our sectional overhead door has panels that are connected together, each having a tongue and groove sealed thermo break, and mechanically interlocked by means of hinges. These panels have wheels which run inside channels which are fitted vertically against the opening. The security grilles and shutters are purpose made to suit individual requirements. They are perfect for shop fronts, shopping arcades, clubs or servery openings. Our safeguard bar shutters are developed as a strong yet elegant alternative to conventional grille type curtains, and they are manufactured from undulated zinc tube crimped and clamped securely.