Planning a Shower Remodel
What actually drives shower remodel cost in Idaho
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Short answer
Shower remodel cost is driven by six things: the size of the wet area, whether the drain or valve moves, what is found behind the old tile, the waterproofing system, the tile format and layout, and the glass. Finishes get all the attention, but drain relocation and hidden damage are what move a quote the most.
Key takeaways
- Size of the wet area sets the baseline; every additional square foot is tile, membrane and labor.
- Moving a drain or a wet wall is the single largest controllable cost decision.
- Hidden damage is discovered at demolition, which is why an honest estimate names it as a possible line item.
- Large-format tile costs less in labor per square foot than mosaic, but needs flatter walls.
- Glass is measured after tile and often has the longest lead time in the project.
1. The size and shape of the wet area
A 32-by-60 alcove and a 5-by-7 walk-in are not the same project at different prices; they are different amounts of every input. Membrane, mortar, tile, labor hours and grout all scale with surface area, and a larger wet area usually also means more glass and a more involved slope plan.
Shape matters as much as area. A rectangle with three walls is efficient. A neo-angle, a corner entry, or a bench and niche in every wall multiplies the number of inside corners — and inside corners are where the labor and the waterproofing detail concentrate.
2. Whether the drain or valve moves
Keeping the drain where it is keeps the project simple. Moving it means opening the floor, reworking the trap and branch line, and in an upstairs bathroom, getting access from below. A tub-to-shower conversion almost always includes some drain movement because tub and shower drains sit differently.
- Same location, same valve: least disruptive, most predictable
- New valve, same drain: modest addition, usually worth doing while the wall is open
- Drain relocation over a crawlspace: routine, access is straightforward
- Drain relocation on a second floor or over a slab: significantly more involved
4-6. Waterproofing, tile and glass
| Decision | Lower cost direction | Higher cost direction |
|---|---|---|
| Waterproofing | Standard board or liquid system in a simple rectangle | Full sheet system with curbless pan and multiple benches |
| Tile | Large-format porcelain, simple stacked layout | Mosaic floors, natural stone, patterned or mitred detailing |
| Glass | Fixed panel or standard framed door | Frameless custom glass, low-iron, coated |
| Fixtures | Single pressure-balance valve and head | Thermostatic valve with body sprays and a hand shower |
One thing we would not economize on: the waterproofing system and the pan. It is the least visible part of the shower and the only part whose failure costs you the whole project a second time.
Frequently asked questions
- Why will you not publish a price range on this site?
- Because a range wide enough to be honest is too wide to be useful, and a narrow one would be wrong for most homes. We quote in writing after seeing the room.
- Is a tub-to-shower conversion cheaper than a full shower remodel?
- Not necessarily. A conversion adds drain relocation and full-height waterproofing to what would otherwise be a straight replacement, so it often lands in the same range.
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