Six factors set the price of a custom tile shower: the tile itself, the waterproofing system behind it, built-ins like niches and benches, the glass enclosure, what demolition uncovers, and the shower's size and layout. Two bids that look far apart are usually describing two different showers.
Custom showers are the heart of what we do — the flagship service of our father-and-son company and the job we have refined over 40 years and 1,500-plus projects around Riverside, Corona, and Moreno Valley. So we hear the same fair question constantly: why does one shower quote come in double another? This post will not throw numbers at you, because honest numbers depend on your bathroom. Instead, it explains what actually moves a bid, so you can read any contractor's quote — ours included — like someone who knows where the money goes.
How Much Does Tile Choice Move the Number?
Less than most people assume on material, more than they assume on labor. The spread between a builder-grade ceramic and a premium porcelain matters, but the bigger swing is in what the tile asks of the installer. Large-format panels need a dead-flat substrate and two sets of hands. Small mosaics multiply the number of pieces set by hand. Herringbone and other patterns add cuts and layout time on every course. Natural stone adds sealing and zero tolerance for mistakes — there is no touch-up coat for a cracked marble panel.
Material and pattern together can make the identical shower footprint an easy week or a demanding one. If you are still choosing, our comparison of porcelain and ceramic tile covers where each earns its keep, and porcelain's density is why it anchors most of our custom shower tile work.
Why Does the Waterproofing System Matter Most?
Because it is the part of the shower you are actually buying. Tile and grout are not waterproof — the system behind them is, and building it is where a large share of the labor in any legitimate shower bid lives: substrate preparation, a properly sloped pan bonded to the drain, membranes or coated boards on the walls, and sealed transitions at every corner, curb, and niche.
This is also the line where lowball bids find their savings, and it is the worst possible place to save. A cheaper shower that skips waterproofing steps looks identical on day one; the difference shows up in a soft wall or a stained ceiling a couple of years later, and by then the repair involves framing, not tile. It is the same reason we tell handy homeowners this is the one job not to attempt themselves — see where the DIY line really sits.
What Do Niches and Benches Add?
Every built-in is a small construction project inside the shower. A niche is framed, waterproofed on five interior faces, trimmed, and tiled — with each edge mitred or finished. A bench adds framing, a sloped waterproofed seat, and often a stone slab top. None of it is exotic, but each piece adds hours of skilled work and several more places where waterproofing must be perfect.
Built-ins are also where a shower starts feeling custom rather than replaced, so we rarely talk anyone out of them. We just make sure clients know they are buying carpentry and waterproofing, not merely a hole in the wall.
How Does the Glass Enclosure Figure In?
Glass is typically its own line item — often from a specialty fabricator — and frameless glass in particular is measured after tile is complete, custom-cut, and hung on hardware anchored into your finished walls. A simple framed door on a tub-to-shower conversion and a floor-to-ceiling frameless panel wall are entirely different purchases. Glass also affects the timeline, since fabrication starts only after tile is done; our post on how long a shower remodel takes shows where that wait lands in the schedule.
What Surprises Show Up During Demolition?
The only honest answer to "what will demo find?" is: the wall gets a vote. Common discoveries in the Inland Empire housing stock we work on include rot or mold in the framing behind a slow leak, plumbing that predates modern valves and should not be tiled over again, out-of-plumb walls that need correction before large tile can go on them, and slab or subfloor issues under the old pan. Good contractors handle surprises transparently with a documented change order — but no one can price what is behind the wall before the wall is open, which is one more reason identical-looking showers carry different final costs.
Does Size Change the Cost as Much as People Think?
Size matters, but less than layout. Doubling a shower's footprint does not double its cost — the pan, drain, valve, and waterproofing perimeter exist either way. What moves the number more is complexity: extra corners, a second shower head, a curbless entry (which involves recessing the floor), moving the drain or valve, or converting a tub to a walk-in shower as part of a larger bathroom tile remodel. Keeping plumbing where it is and spending the budget on tile and glass is the most efficient path to a dramatic result.
How Should You Compare Shower Bids?
| Cost factor | What moves it | Ask every bidder |
|---|---|---|
| Tile | Material grade, size, pattern complexity | Who supplies it, and what waste factor is figured? |
| Waterproofing | System type and how far it extends | What system, exactly — and is the pan new? |
| Niches & benches | Count, size, finish edges | Are they in the bid or an add-on? |
| Glass | Framed vs. frameless, panel count | Included, allowance, or separate vendor? |
| Demo | What the wall hides | How are surprises priced and approved? |
| Size & layout | Corners, plumbing moves, curbless entry | Does the price keep plumbing where it is? |
A trustworthy bid answers all six columns in writing. When one does not, the missing line is usually where the low price came from.
If you are planning a shower anywhere in Riverside, Corona, or Moreno Valley, we will look at your actual bathroom and give you a written, line-by-line estimate for free. JM Custom Tile and Stone is licensed (CSLB #956305, C-54), every installer on the crew is a tile specialist, all work is guaranteed — and we leave your house cleaner than we found it. Request your free estimate and see exactly where your number comes from.
Shower Cost Questions
Why did I get such different bids for the same shower?
Because the bids almost certainly do not describe the same shower. One may include a full bonded waterproofing system, substrate correction, and niches; another may assume the existing pan is reusable and price only tile-setting labor. Compare what each bid includes line by line — waterproofing method, demo scope, features, and who supplies the tile — before comparing totals.
Does expensive tile mean an expensive shower?
Not by itself. Tile is only one line on the bid, and labor often outweighs material. A modest porcelain set in a complex herringbone pattern can cost more overall than a premium large-format tile set straight. Pattern complexity, tile size, and how much cutting the layout demands move labor as much as the tile's own price tag.
Is it cheaper to keep my shower the same size and layout?
Usually, yes. Keeping the drain, valve, and footprint where they are avoids plumbing relocation and framing changes, which are separate trades on top of tile work. Most of the visual transformation in a shower remodel comes from tile, niche, and glass choices — not from moving walls.
How do I get an accurate shower quote?
Have the installer look at the actual bathroom rather than quoting from a text message. A real estimate accounts for the substrate, access, plumbing age, and your tile selection. JM Custom Tile and Stone provides free in-home estimates across Riverside, Corona, and Moreno Valley, and every quote spells out exactly what it includes.
