how much typically are upvc windows
Here are some example prices: a single 600 x 900 white uPVC casement double-glazed window will typically cost around Â£300. A sash window of the same size is likely to cost around Â£500 to Â£600. For a door (again with a white uPVC frame), expect to pay in the region of Â£900.To get replacement windows for a semi-detached house (i.e. one with 8 windows to be replaced), it will cost over Â£3,000 for casement windows, or Â£5,000 to Â£6,000 for sash windows.he total amount that you can expect to spend on replacement windows depends on the following factors: 1  The number and size of windows and doors that need to be replaced. 2  The type of windows that will be installed: casement or sash.