Overall, I really don't have any bad things to say about Windy City Air Conditioning and Heating. Whenever we have any issues I know that we can easily get a hold of them and get them out to diagnose our problem very quickly. We have never had any issues with the service they provided us and are always pleased with the customer service we receive from them. They have a very professional and hardworking team. Their prices are very reasonable for the work they do as well. I will be using them in the future if anything comes up.