Quality Excellent. Scope of project involved removing old attic insulation, air sealing attic, installing new insulation in attic beyond basic recommended levels, air sealing leaks from basement to living space, air sealing duct work, HERS rating, and calculating appropriate HVAC size. All work was completed in timely manner. Response from contractor was quick. Work was performed well. No complaints. If you are considering adding/updating your insulation you should go through Benton Energy and not the normal contractor network. Quotes from normal insulation providers were roughly the same in cost, but they could not provide the additional benefit of air sealing, providing a HERS rating, and cannot get you a rebate with Duke Energy. I would recommend Benton Energy for your home insulation work, and more.