I had Nick arrive within the time frame and ready to install a bigger intake pipe to the AC unit. Nick went up in the attic to double check the measurements. He came back and explained he had made a mistake and needed to comeback with a bigger intake grill. Since the existing smaller intake grill would not accommodate the newer bigger intake pipe. I appreciated that Nick was honest and admitted he was wrong. Nick mentioned what parts we needed to make things right. We are all human and make errors. I prefer a company that is straight up honest with me. I don't fault Nick, it takes a bigger man to admit when he is wrong, I take it as we know what we need and having to comeback with the right parts and know it will get done right. Its shows I can trust the company. That is how trust is built with customers. Thus in return we keep on returning back for great customer service. Just my opinion.