"Jeannie Frankowski and her excellent, experienced crew replaced all of the windows in our home in Arlington Heights, Illinois.  It wasn't the biggest job she has done, nor the smallest, but every step of the way she made us feel that our job was the most important one in the world.  We could not be happier with the job that was done, and if owned a second home, we would certainly have her work there.  I volunteered to write a letter to prospective new customers as a heartfelt thank you for the wonderful job that was done.  We readily endorse her!" William & Susan M.  Arlington Hts., Il

"What we loved best about J.C. Lilly Windows was the fact they left nothing behind such as nails, screws, metal on the ground.   They worked  so smoothly and then they cleaned every window.  Jeannie Frankowski who is the owner was on the job the whole time working alongside the installers.  My mother and I were amazed. We love our new windows and  we felt that we really got our money's worth." Maryann  and Mary G.   Chicago, Il

I love my new front door. Love it. The front door is beautiful and the installation was hassle free. Thanks for being there for us.   Wish we would have known about you when we replaced our front windows. We will definitely call when we replace the other windows. Gail B Oak Lawn IL

"Thanks Jeannie. I love my new patio doors. You gave us great pricing and great service. Wonderful job. " Pat F. Downers Grove IL

"I want to thank Jeannie Frankowski and her staff for the fantastic job they did installing our new windows. My husband and I are so pleased with the outcome. We have recommended this company to our neighbors down the block. Thank you Jeannie for taking such good care of us." Gina and David W. Elmhurst IL

Thanks Jeannie to you and your staff. Our new windows and doors are great. Appreciate you being there to watch our backs on this job. You really had our best interest at heart. Much appreciated.   Bill R Chicago IL