I contacted Justin because our first floor master bedroom was extremely hot during the summer and very cold in the winter. When Justin came out, he did a thorough inspection and explained his findings in detail. He used thermal imaging to determine our bedroom attic had no insulation above it. Since there was no access to this area, his high-tech gear was able to see what we could not. Justin is extremely polite, extremely patient and knowledgeable. I would highly recommend Justin and the amazing Comfenergy crew to anyone.