CHS provided great service. Linda at the office covered all logistics in a timely manner. We received an elaborate detailed energy audit and then 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. We had duct sealing air sealing and some insulation installed. The work was done quite well. We were cold in December and definitely warmer in January after CHS completed the work.