It looks like we need a new back door for the house, and while we are at it, the side door too. Our house is about a hundred years old, and they are probably the original doors. The front door had been recently replaced just before we bought the house ten years ago, so that one is fine. But the back and side doors definitely need replacement. For the back door we want half or three quarters glass so we can look out into the back yard, and we'll get a storm door on that one too. The side door is less important since it enters to a landing halfway down the basement steps. We'll just get small windows at the top of the door there since we have no need to look out that door, but the light would be nice. Also, no need for a storm door on that side door. We've had two quotes, both about ten thousand dollars. While it seems like a lot of money, people tell me that is the right ball park for the job. We have been saving money for home improvements, and we saved even more over the past year. So we do have savings to tap for this. We'd like to do it right the first time since it is a pretty major expense for us, but I don't want to waste money either. We are in Pittsburgh. I don't know much about replacement doors. I'm appealing to the collective wisdom if there is any advice you guys have, known pitfalls or other things to look out for.