Good and affordable usually don't go hand in hand. We had our heat pump replaced three weeks ago. Used Brinegar Heating and Air and they did a great job and beat a few other estimates. Not the cheapest but far from the highest also. Number is (859) 270-5722 Also, a lot of places want to automatically replace both the unit inside the attic (heat exchanger) along with the heat pump when only the heat pump (compressor typically) needs replacing. Difference between $2500 and 5-6K. My 2 cents worth from hours of research and talking to a few guys in the business.