hi Alice, Steve has just replaced some of our windows and refurbished others. I think rattlers can probably be saved but we had rattlers and rotters in the front bays. We could have had them refurbished but it would have only extended them till they needed replacement in the very near future. Our living room was extremely draughty. Because they were so far gone, it was only a bit more expensive to have them remade rather than repaired. We kept the frames and sills as they were ok and Steve's team of two extremely hard working blokes stripped and repainted these. New sashes- exact copies of the originals- in front bay and two non-bay in upstairs front bedroom. Our back bedroom had a rattler with a lot of draught, and this was taken out, stripped, and whatever else was needed to make it fit properly. They finished work today, ten days after starting- which was four days shorter than estimate.