I used R & D Heating & Cooling for the first time recently and they did a great job. They came in and serviced my Mitsubishi unit and cleaned one of the heads. The staff was so friendly and professional that I would consider using them again in the future. They know what they are doing and I was able to get the results that I needed. The pricing was a little bit expensive, but it was definitely worth it, especially with this kind of quality. Geannie, the worker who came out, did an amazing job and completed the work efficiently. I was very impressed with the service I got.