Our house is 1873, but not in conservation area or listed. Most of the original features, inc. staircase/ fireplaces have been ripped out. The windows are those horrible 1970's type and we are getting these replaced. Not sure whether to go with PVC (low maintenance) or wooden (looks nicer and more authentic). We are required by law to have double galzing whatever way we go. Anyone have experience of either wooden or PVC sash, and if so can you recommend a supplier?