Aaron's Heating & Cooling

I had a furnace and A/C installed fall of 2013 it was late in season so was not able to get a good check on the air, the summer of 2014 worked good then it started freezing up I called and they came out looked it over and said it should be ok but it didn't work it was worst than before I called they came back and they spent a ggod part of 2 days on it and they said it was a blockage in the coil in the long run and then they had the gull to charge me 300,00 for service and said he should charged more well I paid but I am a maintenance man and I know that that he should have recovered almost 100% and when I asked for itemized bill he said he doesn't itemized and also not covered by warranty so stay clear if you want some one who stand behind there work!!!!!!!!!!!!!!!