Book your Windows & Doors Consultation Whether your project is for windows, doors or both, we will use our design and technical expertise, to ensure you get the right windows and doors for your home. We offer appointments both online and in-store, meaning you can come and meet us face-to-face, or online with the power of virtual meetings. The Crystal Design Centre has been established to give you the most trustworthy advice and low-pressure experience, along with outstanding customer satisfaction and exceptional attention to detail. Make an appointment with our expert team now! Available at B&Q Milton Keynes, Farnborough, Reading & Norwich, or online.