How Much Does It Cost to Install a Steam Shower?
Part of our Home Spa & Outdoor guides.
Total cost = the product + extra parts + labor. Product prices below are VEVOR list prices we checked in November 2026. Labor rates vary enormously by city, so instead of guessing a dollar figure we list which trades you need and how long the job typically takes: multiply by local hourly rates and get at least two quotes.
Cost breakdown
| Cost item | What to budget |
|---|---|
| Steam generator (VEVOR 4-15 kW) | $229.90-$393.90 |
| Vapor-tight door/enclosure to ceiling | often the largest cost |
| Vapor barrier + sloped ceiling | materials + labor |
| 240 V circuit | depends on kW |
Labor: who and how long
| Trade | Typical time on the job |
|---|---|
| Electrician | Half day |
| Plumber | Half day |
| Tile/glass | Several days if building new |
Ways to save
- Converting an existing fully tiled shower is cheapest.
- Size the generator correctly the first time.
Converting an existing shower
If your shower is already fully tiled to the ceiling, the main costs are the generator, a vapor-tight door and ceiling enclosure, a sloped ceiling if missing, and electrical and plumbing connections. If the walls lack a vapor barrier, a proper steam shower usually means rebuilding them.
Choosing the generator size
Undersizing is the most expensive mistake because the room never gets steamy. Use our calculator and size up for tile, stone and high ceilings.
Operating cost
A steam session typically runs 15-20 minutes. The generator draws its rated kW while heating, so a 9 kW unit running 20 minutes uses about 3 kWh. Multiply by your electricity rate.
Frequently asked questions
Can I add steam to my existing shower?
Only if it can be sealed to the ceiling with a vapor-proof door and sloped ceiling.
Does a steam shower add home value?
It's a luxury feature some buyers value, but returns vary by market.
How much electricity does a steam shower use?
A 9 kW generator running 20 minutes uses about 3 kWh.
Can I use a regular glass door?
Steam needs a vapor-tight door and enclosure to the ceiling; regular doors with gaps let steam escape.
Is a vapor barrier required?
Yes, behind walls and ceiling to prevent moisture entering framing.