The CERTIFICATE OF COMPLETION was illegally signed before the job was completed. Mark Coe (team lead) said this was required, because he needed to leave for another job and even though employees were still working. I was told I could pay by credit card, but this turned out not to be the case. QET failed to respond for months to EnerBank about my complaints regarding their charges and their installation. Over a year has passed, and despite QET's promise to inspect the insulation each year, they have never contacted me to do. Despite multiple emails and Certified Mail to the owners, none of the QET owners have ever responded.