We used to live in a house apartment at Montgomery Road and we used to have a big problem with our Air-Conditioning because the AC does not even make the house cold especially in the summer. So we called the owner of the house and asked them to service the AC. Finally, a repairman from Duncan and Heating and Air Conditioning came after several days and we did not know what they did but they made the house feel so cozy in the middle of the summer. The guy who service our AC was nice too! Definitely a good customers service.