Premium uPVC window frames Smooth weld technology is used to produce an almost invisible joint. Fantastic looking uPVC window frames Designed to replicate timber windows, our premium uPVC window frames feature a smooth corner weld, this combined with equal sightlines and a choice of colours means these window frames are perfect for period properties or adding charm and character to contemporary homes. A+ rated energy efficiency 10 year manufacturing guarantee British standard PAS24-accredited security Available in a range of profiles A broad choice of colours Standard vs smooth The corner joints of our high quality uPVC window frames are manufacturered to look like traditional wood window frames. This is achieved by pushing the leftover plastic into the profile creating a smooth joint rather than the wider corner welds typically seen on standard uPVC window frames. Smooth weld joints are perfect for woodgrain or colour finished window frames Our premium window frames are available in 26 different colourways from stock. Don't worry if you’re looking for a specific colour - There’s also practically hundreds of Renolit colour finishes you can choose from. Dual colours Dual colouring lets you have both sides of your window frames coloured or have a clean white interior frame. Popular window frame colours Heritage white Agate grey Chartwell green Irish oak Golden oak Anthracite Contact our design team for advice and to view the full range of colours. Frame profiles Our premium uPVC window frames are available in 3 different profiles. Chamfered sash > Straight angular sash edges Sculptured sash > Rounded detail on the sash Flush sash > Fits flush within the frame Why choose Yorkshire Windows? Free no pressure quotes Friendly, experienced staff Established local firm Huge range of styles Professional, conscientious fitters Competitive prices uPVC windows Chamfered sash Sculptured sash Flush sash Premium frames