Windy City Air Conditioning & Heating have always provided excellent service and I have been a customer with them for about 7 or 8 years now. The thing that really stands out to me is that they follow through with what they say they will do. They arrive when they say they will, and they always provide top-quality service backed up with great customer attention. Overall, I absolutely rate them 5 out of 5 stars and I highly recommend Windy City Air Conditioning & Heating. Great job guys!!