Previously I had used Grandview Furnace Company but when I called them up this time they let me know that they were sending someone out from One Hour Heating and Air Conditioning. They made it sound like had merged together. Either way, I was completely happy with the work they did. I needed something pretty simple, just to hold up my air conditioning unit to my back wall. I think they attached it with some wood screws. Everything works great and it was an easy experience. If I am ever in need of HVAC professionals, I will be calling One Hour Heating and Air Conditioning.