We had 17 windows installed in our home by Centennial Windows. I would highly recommend them. They were amazing and they went above and beyond the level of service that I expected. You could tell that they were expert installers and they cared! They treated my home with care and made sure that the windows were installed properly. The windows look great and function well. We had an issue in our largest window that's 10 feet by 8 feet. We had some decorative brass pieces installed within the glass and when a train would go by it would rattle slightly. When we asked Centennial what they could do about this, they commented that they could put an extra piece of bevelled glass in the middle to help support the brass pieces. This solved the problem and Centennial considered this a warranty issue because they didn't expect us as homeowners to know that this could happen. Peace of mind!