Installers were new. Was a good thing we sat in our yard & watched the installation. Had discussed details with the co. owner during quote but was never relayed to installers. They had to pull up part of our siding to install, had hard time finding studs, left greasy finger prints on the whole length of dormer. They reluctantly removed after we insisted. Installer wanted to cut stability feet to fit deck or leave hanging over. We told them to change limit of opening so the feet would fit properly. Installer measured for new side screen but came too short. I refused screen. Sent email to owner who called yelled & screamed at me. Told me I was not a nice person. Told me installers complained we watched every move. Said they did not want to come back. Tried to explain we even gave them a case of water & $20 tip. All he wanted was the balance paid & send an email saying job was completed satisfactory. We had pd half deposit, balance at completion. When I refused, he hung up on me. I sent him another email explaining the problems we had (there were more but too many to mention) Couple hrs later, he sent an email, apologized for yelling (not for what he said) Told me to measure & he will make. Next day very nice lady came to our house & measured for screen. (She actually makes them) Eventually they got it right. But it took a couple of more trips. I paid but did not like the treatment & never heard back from owner, once he got his money.