Re: Wood Window Repair, Making, Restoration
I have made any number of duplicate window sash over the last 30 years. I learned how by watching an episode of Roy Underhill's PBS program. And then I went and acquired the tools, including some molding planes so I could duplicate the historic profiles. I was also able to make doors with the same tools, so it was cost-effective. There are some variations on the theme, obviously, like angled or curved windows, but basically a sash is a sash. You begin with the glass size, and work outwards from it.
Remove not the ancient landmark, which your fathers have set.