The Hall Bath Gut

Tub out, shower in. The hall bath goes to the studs for a tub-to-shower conversion: a new tile surround, and a dropped soffit to hide the new fan duct. Demo uncovered one wrinkle. An original single-pane window sits inside the new shower's wet wall, with its sill at 40 inches. The owner has a side quest too. 'While the crew's here, swap the kids' bedroom window. Same hole, no stucco work.' Your tile setter and your carpenter are both on site, and both have opinions.