I have used Prestige before and now all my doors and windows having been fitted using Prestige. I would highly recommend this company as they offer excellent products and the fitting team do not just fit the windows they ensure that they are fitted well and that the presentation of their products is of an excellent standard. They office staff keep you up to date with fitting times that have been agreed and their is plenty of communication before and during fitting. If there are any problems Prestige will overcome these and all the products carry an excellent warranty safeguard