Competent, honest servicemen are very difficult to find these days. We called Environmental based on all of the great internet reviews and we are extremely happy we called them. Some HVAC companies won't even say "hello" for under $90, but Ryan and environmental were focused on solving the mystery with our mal-functioning heat pump that hadn't been right since installed in our new home on day one. Over a series of visits they found emergency heat coils never connected, diagnosed blockage in the lines that caused the unit to frost over, and were set to replace the coil today when Ryan uncovered blockage in a switching orfice. Once that was cleaned up, the coil replacement wasn't necessary and the unit performed like never before. What can we say but great service, great diagnosis, and tremendous value. We would gladly recommend Eenvironmental Heating and Air of NC to anyone!