Here at KCW we supply a huge range of standard and bespoke windows and doors in many different styles, colours and finishes. Manufactured in uPVC, aluminium and with a further option of composite doors, we are confident that we can help you choose the right product to suit your requirements. Why not call us or visit our showroom to discuss your needs with one of our friendly sales team?
u-value is the measurement of how easily heat can pass through a material. The whole window (the frame and the glass) is assessed on its efficiency at retaining heat. The lower the u-value the better the performance.