To Illinois Energy
I would like to take this opportunity to thank Illinois Energy for a job "well done". We are extremely happy with our new windows and feel the investment is well justified. You had done an excellent job in suggesting some nice changes to our existing windows which has improved the appearance further.
Your crew did an excellent job and were were very happy with the way the project was handled. Your firm has also been excellent in responding to questions and clarifying any issues.
Thanks to you and all your staff.