We have just had four replacement windows installed in our mid-19th century end terrace house by Bentley Brothers. The windows, which include a very tall sash window with curved top, are extremely well made and are in character with others in the house. We found Nick and Chris to be both friendly and professional throughout. If we decide to get any more replaced, we wouldn't hesitate in using the brothers again and would certainly recommend them to anyone wanting to replace windows in an older building.