We have been using R & D for 14 years and have nothing but good things to say. They are always, punctual, professional, and I feel that when able, they go above and beyond. Most recently one of my A.C. units wasn't working, they came out promptly, discovered that it was an electrical issue, sent out their electricians who diagnosed the problem, and got things up and running. When they finished the job no one was home so they took the time to close all ten windows in our family room and kitchen. Needless to say they didn't need to do that but it sure was appreciated!