In typical "replacement window" jobs, carpenters take out the original windows and replace them (or just the sash) with vinyl, aluminum, or highend wood windows. But "replacement windows" don't necessarily have the same muntin arrangement, glass area, or molding profiles as the originals. My company, C. Wuerth Restoration Contractor, takes a different approach that conserves as much of the original material as possible. We do this by replacing missing or damaged parts with exact duplicates. In the final analysis, the cost of repairing two or three badly damaged originals is significantly less than yanking out all the windows and installing new ones. Though our company specializes in buildings from the 1600s to 1800s, the techniques we use to repair windows can