I noticed today that it took an hour for our A/C unit to take our house temperature from 81 to 80. This sounds horrendously inefficient to me. There must be something wrong with our AC unit so I found a local family (son and dad) company to come service it/clean the coils/diagnose any possible issues for $94 and $64 for 1lb of refrigeration and $34 per pound after that. Is this reasonable? I am still shopping around but I have heard these guys are great and have reasonable prices. I don't think our AC or furnace have ever been looked at since it was installed (12years ago when the house was built). We did have refrigeration added to our AC about 3 years ago, but that is all that was done.