Birmingham inst too far from me, so would be good to know of the company that Steve may have. I always try and take notice of any firms out and about, but non spring to mind as there are quite a few. Sash windows is something that I would also consider doing in the future, now that the door is on the rest of the house looks awful. A house a few doors away had a few sashes replaced a few years ago, but look very different to the original ones as they only replaced to top ones. A lot of the details are missing.