I used Dave Hoh and his crew after I had an energy audit completed. They did a good job and cleaned up after themselves. But, the real game changer was that we did not use a guest room for 2 summers. We realized the room was not getting any air (our mistake for not checking sooner) and Dave had no issues coming by and fixing the issue for us. Many contractors we have engaged would not have really guaranteed their work. Thank you Dave and DR. Energy Saver!