My sister had some work done last year on her new lake house in the country. She knew that the windows were very old and not very efficient so she called a Chicago replacement windows company to come out and give her an estimate on some new vinyl windows. They came out right away and gave her a detailed written estimate and showed them some before and after pictures of their past vinyl window projects. My sister is very skeptical of things and always has been. I remember years ago it took her over six months to trust and finally hire a Chicago company to replace her old shingle roof. But this time she was very confident in working with this Chicago replacement windows company and hired them on the spot. They came out a week or so later and replaced the windows with all new vinyl windows, the house looked great and my sister was so happy that she had them do some more work like replacing the front door and some other stuff. She also referred them to a couple of other neighbors who ended up using the Chicago replacement windows company. All in all it was a great experience for my sister and for the Chicago vinyl windows company.