CHS provided great service. Linda at the office covered all logistics in a timely manner. Craig came to our house and performed an elaborate, time-consuming energy audit, and then we received a detailed booklet with findings and recommendations from the audit. We did not take all of the recommendations, but we did hire CHS to do what we wanted done -- duct sealing, air sealing and some insulation. I think the work was done quite well -- all I know is that we were cold in December, and definitely warmer in January after CHS completed the work.