The people were great - Rob was very helpful and responsive. The Installation team put up with all my questions and were very helpful in explaining what they were doing when I asked and were just a good team overall. Window World of Illinois is locally owned and operated by Jon Gillette and Jim Lomax, and we proudly serve Champaign, Illinois and all of the surrounding areas. We offer a wide variety of replacement window options, including frames, grids, styles, glass options, and Low-E qualifications.