He performed a comprehensive energy audit of our newly purchased home. He was very thorough, knowledgeable, and careful. His ladder made a slight smudge on the attic entry molding which I had not noticed, but he did and he completely cleaned it off before he left. He took time to fully explain my options, from what and how I could do myself, to what would be better done by contractors. He is completely objective, with no conflict of interest because he doesn't sell his solutions. He patiently answered my questions and explained the signficance of what he found during his audit, and reviewed his findings when he finished. His report was sent the next week, complete with photos, explanations, and recommendations.