I had Dr Energy Saver air sealed my home, insulate my attic with cellulose, seal and insulate my kneewalls with foam insulation, and install their CleanSpace CrawlSpace encapsulation System in my crawl space. They did an excellent job! I give them 5 stars out of 5! The saleperson was very good at explaining issues and the crew was very thorough and detailed and cleaned up very well. Overall their knowledge and experience was the reason I hired them instead of anyone else. They were the best choice for me. I would recommend Dr. Energy Saver to any homeowner here in Manchester or anywhere!