This a DYI process from start to finish, and I have yet to finish. I ordered 16 inserts, I wish I had not. The amount of time and energy to measure the windows not once, but twice to assure accuracy is tiring. A 225 lb crate arrived, that the freight driver would only drop in front of my home. It was raining. The cardboard was ripped, but the windows were intact. I inspected each one. The windows are strewn around my house because they are too big and awkward for me to insert alone. I am searching for a friend for this project phase. Am I happy? I don't know. The product looks reasonable, but the process is a bear and I likely would have gone in a different direction had I understood these important nuances.