Hi All! I'm new here but am attempting a renovation on my own of my old Victorian property in the South West. I wondered if anyone has any ideas how I should approach the fitment of a new window. The old sash window was removed a long time ago and so a modern UPVC unit looks to have been bodged in with a hardwood frame mounted on the inside of the brickwork. The walls are solid and have no cavity. The window itself is too small for the actual opening of the brickwork, so has been mounted in this frame. My intension is to replace the window but I am stuck on the fitment detail of the new window, and want it to actually fit the opening. I plan to build a stud wall inside along the external wall for insulation and services to be housed and I wondered if I could incorporate a frame into the stud that would support the window and hold just slightly off of the outer course of bricks to prevent any cold bridging. Any ideas on this or other methods? All help greatly appreciated, thankyou!