Sash Solutions restored the very large bay sash window in our Victorian town house about a year ago. This involved removing the glass, overhauling the frames and installing slimline double-glazing. We have been delighted with the outcome. What I had not realised before is that removing the glass enabled a full overhaul of the frames, which had not been possible previously. As a result the windows are now in great shape. We have been able to keep the original window frames- the wood is of really excellent quality (and probably much better than modern replacements). Several things have surprised us: 1. the windows are quite easy to move up and down (they are so large that we thought installing double-glazing might make them very heavy) and 2. the slimline double glazing is far more effective than we thought it might be (last winter there was no noticeable temperature drop in the bay where previously sitting in the sofa in front of they bay during the winter was only comfortable with a blanket around the shoulders). The double glazing has made a huge difference to the comfort level in the room. Sean and his colleague were reliable and clean and tidy and pleasant to have around. Also, we had a query some time later about the counterbalance weights and Sean came round to check it over so post-job service was also good. (HMM, Bristol)