Robust and long lasting. Composite doors will provide your home with maximum security, making them an ideal choice for an exterior door. Keep your home safe and secure with our excellent range of composite doors. Robust and long lasting. Composite doors will provide your home with maximum security, making them an ideal choice for an exterior door. Keep your home safe and secure with our excellent range of composite doors. Choose from our attractive collection of composite doors from makers such as DoorCo and Solidor. Our composite doors are manufactured to the highest quality and available in a range of colours and styles.