I had a window rep come yesterday to have a look at some windows I need replaced . We are wanting Marvin Ultimates. This is a second company I've had come as I wanted to at least get two prices. This person kept saying they could not fit my windows with a full replacement and would have to do a window and do the trim in azek. I've not heard of doing it this way before and am questioning this. The other company rep didn't mention anything like this and seemed to not question four of the window sizes. He did have a problem with one, a semi circle over a double hung, but said they could work that out. Is the azek something that Marvin does on odd sized windows for trim ?