Here was a fun little project. Most people are unaware that most PVC windows are not structurally sound. There are a few suppliers that can make them upon request but most do not. Replacing old basement windows can be tricky for this reason. This particular window was rotten beyond repair. We had to pull everything apart, digging out all the rot. We then replaced the structural box inside the concrete. The new box was made from brown treated 2×8’s, reinforcing the hole. This is important to maintain because the box helps support the concrete which in turn supports the flooring joists. Without the box there, there is more chance of the concrete cracking from pressure and in time crushing the new PVC window. We then installed the new window, finishing it off with a Custom PVC wood grain exterior, internal melamine jambs and 3″ primed mdf casings.