I was having ice buildup on my air conditioning unit and Sig Cox Heating And Air Conditioning came out to fix this issue for me. They had to change out the freon in my system and that did rectify the issue. They showed up on time and were very pleasant and informative explaining everything to me. I did think it was a little expensive for this service but I think that everyone is expensive in this line of service. I am happy that it was fixed and it does run perfectly now so I really have no complaints!