So far so good. Knowledgeable, friendly, clean and efficient. Best of all, right in price range with other vendors that do not do all the procedures. Just signed contract. Keep posted for results and feedback. So far everything I wanted. I wanted to know the science behind keeping my house efficient – needless to say -important to me to get right the first time. So far very, very impressed. Feeling warmer already. Stay tune for final feedback. They come back and run all tests again to show you results. I know I made the right choice…2 months later. Could not be happier. House so much warmer – No cold upstairs rooms -even with fire place on. Very satisfied. Thank you.