Start with conditions, not a product
What determines whether the room lasts is behind the tile: drain location, framing, how waterproofing transitions are detailed, ventilation, electrical capacity, and access all shape the actual scope.
Build a complete scope
- What is found behind plaster once the first wall is opened
- Waterproofing behind tile and the inspection point before it is covered
- Whether the fixture layout change reaches structure or a stack
- A fan ducted through the roof, which matters over a long heating season
- Permits, trade inspections, cleanup, and the labor warranty
Grand Rapids Context
A bathroom original to that furniture-era housing boom was typically a single small room built for one fixture layout, plumbed to the standards of whichever decade -- 1840s through early 1900s -- the home actually dates to, and a remodel in one of Grand Rapids' older homes usually has to work around that original layout rather than assume a modern one.