How much does a steam shower cost in the Camas / Vancouver, WA area?

Camas Bath doesn't publish a standalone steam shower rate — it's offered as an upgrade to a Walk-In / Custom Tile Shower build, published at $12,000–$22,000. For the steam system itself, Fixr (2025) prices national installation at $8,000–$15,000 (average $11,000), while the generator component alone runs roughly $500–$4,000 depending on size (Bob Vila 2023, Fixr 2025). Washington sales tax, roughly 8.7–8.8% in Clark County, applies to the full labor-and-materials total.

What size steam generator do I need?

It depends on your enclosure's adjusted cubic footage — its raw volume (length × width × height) multiplied by a factor for its surface material. Steamist's sizing guide multiplies by 1.35 for ceramic or porcelain tile and by 2.0 for natural stone or marble, then adds further adjustments for exterior walls and ceiling height above 8 feet. A typical 160-cubic-foot ceramic stall needs at least a 7 kW generator, per This Old House.

Does a wet climate change how a steam shower should be built?

The seal and the exhaust fan matter more, not less. A steam enclosure has to be fully vapor-sealed everywhere, but Clark County's marine climate keeps ambient humidity elevated for more of the year than a dry-climate market gives a poorly sealed enclosure less chance to dry out between uses, so membrane quality and a correctly sized exhaust fan are worth prioritizing over cosmetic upgrades if the budget is tight.

Steam Shower Cost in Camas & Vancouver, WA (2026) — Cited Ranges

Updated July 12, 2026 · 8 min read

A steam shower is not a separate fixture — it is a standard shower enclosure built to hold steam, which means it is sealed, sloped, and paired with a dedicated generator rather than priced as its own category. The honest way to budget for one is to treat it as an upgrade layered on top of a shower you would likely be building anyway, not a total project price in isolation.

This guide gathers cited national figures from This Old House, Fixr, and Bob Vila for installed cost, plus manufacturer sizing guidance from Steamist and Mr. Steam for how a generator is matched to your enclosure. Camas Bath doesn't publish a standalone steam shower line item — it's an upgrade added to a walk-in shower build — so we show what the national data says that upgrade typically runs, and what changes when the enclosure has to be sealed against Clark County's wet-season humidity rather than just built to hold steam.

Key takeaways

Fixr (2025) prices steam shower installation nationally at $8,000–$15,000 (average $11,000); This Old House and Bob Vila put simpler prefab-weighted averages closer to $4,300.
Prefab vs. custom is the main cost split: $2,800–$6,200 prefab vs. $4,000–$10,000 custom, installed (Fixr, 2025).
The generator itself runs roughly $500–$4,000 depending on the size needed for your enclosure (Bob Vila 2023, Fixr 2025, Mr. Steam 2022).
Generators are sized by adjusted cubic footage — stone and marble need roughly double the capacity of ceramic tile for the same enclosure size (Steamist).
Camas Bath doesn't publish a standalone steam shower rate — it's an upgrade added to a Walk-In / Custom Tile Shower build, published at $12,000–$22,000 — and Washington sales tax (roughly 8.7–8.8% in Clark County) applies to labor and materials on top of that.

The short answer

Fixr (2025) prices steam shower installation nationally at $8,000–$15,000, averaging $11,000, with a full range of $3,800–$25,000. This Old House and Bob Vila both put the average lower, at roughly $4,300, with a typical range around $2,800–$7,100 — these figures skew toward simpler prefab installs, while Fixr's range captures more custom and combo builds.

The split that predicts your total is the same one that drives any shower budget: prefab versus custom, and whether the steam shower is paired with a tub, sauna, or jetted feature.

Cost by installation type

Fixr (2025) breaks steam shower installation into prefab and custom tiers, both installed.

Installation type	Installed cost
Prefab steam shower	$2,800–$6,200
Custom steam shower	$4,000–$10,000
Prefab steam shower + tub combo	$4,000–$7,000
Custom steam shower + tub combo	$6,000–$12,000

Source: Fixr (2025). Labor alone for a 36"×48" shower runs $500–$780 (prefab) or $3,000–$6,000 (custom), per the same source.

The steam generator

The generator is the component that turns a standard shower into a steam shower, and its price scales with the room's cubic footage. Bob Vila (2023) prices a generator at $500–$2,000; Fixr (2025) prices the same component at $400–$4,000 for larger enclosures. Mr. Steam's own 2022 pricing shows how that scales: a generator sized for up to 71 cubic feet runs about $2,175, while one sized for 162–257 cubic feet runs about $3,350 — with an entry-level unit for a non-porous-wall enclosure starting around $1,550 before installation.

Mr. Steam (2022) also frames the upgrade in whole-project terms: a sample 120-square-foot bathroom priced at $24,000 without a steam feature came to $30,595 with one added — roughly a 20–35% premium over a standard shower build.

Sizing the generator to your shower

Steam generators are sized to "adjusted cubic footage" — the enclosure's raw volume multiplied by a factor for its surface material — per Steamist's manufacturer sizing guide. Getting this right matters for cost: an undersized generator won't hold steam, and an oversized one is money spent for no benefit.

Base calculation: length × width × height of the enclosure, in feet (Steamist)
Material multiplier: natural stone or marble ×2.0; ceramic, porcelain tile, or glass block ×1.35 (Steamist)
Exterior wall adjustment: one exterior wall ×1.1, two exterior walls ×1.2 (Steamist)
Ceiling height adjustment: 9 ft ceiling ×1.15, 10 ft ceiling ×1.3; ceilings should not exceed 8 ft as a rule of thumb, 10 ft as an absolute maximum (Steamist)
A typical 4×5×8 ft (160 cubic foot) ceramic-tiled stall needs at least a 7 kW generator; a stone-tiled stall of the same size needs roughly double that capacity (This Old House)

Generator size	Adjusted cubic footage range
7.5 kW	101–250
10 kW	251–450
12 kW	451–550
15 kW	551–675

Source: Steamist steam generator sizing guide (manufacturer). Consult a licensed installer to confirm sizing and electrical requirements (typically 220–240V) for your enclosure.

Why the seal matters more here than in a dry climate

Every steam shower has to be fully sealed to trap steam, which is true anywhere. What changes in Clark County is what happens if that seal is done poorly: our wet, marine climate keeps ambient humidity higher for more of the year than a dry-climate market, so a steam enclosure with a weak vapor barrier or under-sized exhaust fan has less opportunity to dry out between uses. This Old House recommends 6-mil plastic sheeting with one-foot minimum overlaps, or two coats of liquid polymer membrane (or a polyethylene sheet membrane) behind stone or tile, with stone sealant reapplied roughly every two years — and a correctly sized bathroom exhaust fan matters just as much as the membrane for keeping moisture from migrating into surrounding framing.

One local line item that's easy to forget when comparing national cost tables against a Camas or Vancouver quote: Washington charges retail sales tax on both labor and materials for remodeling work, and the combined state-plus-local rate in Clark County cities runs roughly 8.7–8.8% (Washington Department of Revenue). That applies on top of every figure in this guide.

What Camas Bath publishes

Camas Bath doesn't publish a standalone rate for a steam shower — it's offered as an upgrade to a Walk-In / Custom Tile Shower, which is published at $12,000–$22,000. Based on the national data above, expect the steam system itself (generator, controls, and the extra sealing and sloping a steam enclosure requires) to add somewhere in the low thousands to roughly $10,000 on top of that base shower cost, depending on enclosure size and whether you choose stone or tile. For the full underlying shower build cost, see our walk-in shower cost guide and our bathroom remodel cost guide.

3-year workmanship warranty

Every steam shower we install is backed by a 3-year workmanship warranty on our construction, in addition to the manufacturer warranty on the steam generator itself.

Frequently asked questions

How much does a steam shower cost in the Camas / Vancouver, WA area?: Camas Bath doesn't publish a standalone steam shower rate — it's offered as an upgrade to a Walk-In / Custom Tile Shower build, published at $12,000–$22,000. For the steam system itself, Fixr (2025) prices national installation at $8,000–$15,000 (average $11,000), while the generator component alone runs roughly $500–$4,000 depending on size (Bob Vila 2023, Fixr 2025). Washington sales tax, roughly 8.7–8.8% in Clark County, applies to the full labor-and-materials total.
What size steam generator do I need?: It depends on your enclosure's adjusted cubic footage — its raw volume (length × width × height) multiplied by a factor for its surface material. Steamist's sizing guide multiplies by 1.35 for ceramic or porcelain tile and by 2.0 for natural stone or marble, then adds further adjustments for exterior walls and ceiling height above 8 feet. A typical 160-cubic-foot ceramic stall needs at least a 7 kW generator, per This Old House.
Does a wet climate change how a steam shower should be built?: The seal and the exhaust fan matter more, not less. A steam enclosure has to be fully vapor-sealed everywhere, but Clark County's marine climate keeps ambient humidity elevated for more of the year than a dry-climate market gives a poorly sealed enclosure less chance to dry out between uses, so membrane quality and a correctly sized exhaust fan are worth prioritizing over cosmetic upgrades if the budget is tight.

Sources

Claims and figures are drawn from the sources above and provided for general guidance; your project may vary. Photography is illustrative of design concepts. For a fixed price on your specific bathroom, request a free estimate.