uPVC windows and double glazing can dramatically enhance the warmth and security of your property, whilst also creating a modern, visually appealing finish. Highly durable, uPVC is incredibly low-maintenance and many households benefit from its easy to preserve, wipe-clean surface. Classic Doors & Windows Ltd manufactures Deceuninck traditional 2500 windows and doors. These are firm favourites with customers. Smooth and stylish, they are proven to stand the test of time and are available in white and wood like finishes as standard.