Our original system (Heating & Air, inside unit and outside unit), probably around over 15 years old. But we have been limping for the past couple of years. Hills A/C tried to keep the life going but the old girl finally gave out. Greg is straight up and honest. He gave me different options and never pressured me into a certain model nor price range. When I made my decision, he was there the following day starting the work. Within maybe 2 1/2 days, the whole job was completed. This included the outside unit, inside unit which is located in my upstairs attic portion, tubing, wiring and all new flex vent tubing. I've seen three electric bills come through and waiting to get a full month of usage so I can try and compare the current to the past. I recently received a good full month bill to help compare. All three of these electric bills were under the $200 month range, when compared to last years at this time, my bills were $350 plus. So already I'm seeing a savings. I highly recommend Hills A/C. Give him a call!