Upvc Patio & French Doors  Double Glazed French Doors or double doors, provide a dramatic and luxurious improvement to any environment. They allow sunlight to stream in and give you the feeling of space and light that will really transform your home. You may be looking to replace old timber or metal French doors with new modern double glazed uPVC French doors which can be matched to your new window profile, manufactured with a Georgian bar, cottage style or just full glass. The choice is yours!