This is the second time they had them in our house. We had Greensaver this time to do the Post Evaluation Home Energy Assessment. Gary was very accomodating in answering the questions I have on how to save on our energy cost. I also like that they are non profit company and yet I do not have to do any paperwork. They did everything from start to finish. This is the only winter we can turn on the heater in December. Great job Greensaver!