Profile: Tong Glass & Windows Ltd. specializes in the manufacture of double glazed u-PVC windows, doors, patios, and French doors. Our products include bi-fold doors, u-PVC windows, patio doors, composite doors, and French doors. We have an exceptional range of doors. Our bi-fold doors provide tech hinges, toughened glass, and rollers. Our patio doors have security locking system. Our windows are suitable for rosewood, white, oak profile, white black, gold, and chrome furniture. Our French doors have regular door opening. We also provide fitting services.