Composite doors are a combination of UPVC and timber, they are made from a variety of materials, which include wood, PVCU, insulating foam, and also glass reinforced plastic (GRP). This results in an energy efficient, strong and secure door. At Windows4u our doors have a high resistance in weather conditions and should not react or be affected by seasonal changes like a timber door would. The doors are fitted with a hook lock mechanism and a 3-star ERA invincible anti-snap cylinder, the security of which is second to none. We offer a choice of door colours, different designs and glass options, whether it be traditional, or something more contemporary, we can help you give your home the WOW factor.