Excellent Work and Customer Service: This company is great. Keith Cherry came out and gave us all the information we needed to help us choose the right windows for our house. We were even able to get a special sliding glass door that had a dog door built into it. I wasn't able to find this with any other company and it beat putting in a flimsy dog door panel. That in itself was the biggest plus in choosing CHI. The installation of the door was done in a day and the windows done in another day. Everything looked excellent. Most importantly the follow up service from CHI is great. I had a small problem with a plastic strip on my slider and they came out to fix the problem. Keith is a joy to work with and I highly recommend them to everyone!