Unlike a composite door which is a blend of various materials, a uPVC door is made entirely from plastic. This makes the latter lower in price and, as a result, it still commands a certain popularity amongst sectors of the population. However, the uPVC door doesn’t have the same thermal heat retaining properties of a composite door and, in most cases, when a uPVC external door is fitted, a second moulded panel is required for inside the home. Both doors are good-looking and retain their smart appearance for a number of years. Having said that, the composite door is expected to last longer than its uPVC opposite and tends to be more secure.