Steam showers: what it takes to add one
A steam shower turns an everyday shower into a spa after a cold New Hampshire day. It is very doable in a remodel, but it has to be built as a steam room, not just a shower with a generator added.
A vapor-tight enclosure
Steam has to stay in. That means glass that runs to the ceiling or a sealed transom, a door with a seal, and walls and ceiling finished with tile or stone. Our shower glass is measured for steam enclosures.
Steam-rated waterproofing
Standard shower waterproofing is not always rated for steam. The walls and ceiling need a membrane system rated for continuous steam use, installed per the manufacturer. This is the part you never see and the part that matters most.
Ceiling height and slope
Lower ceilings heat up faster. Many enclosures stay around 8 feet or drop the ceiling inside the shower. The ceiling should slope so condensation runs down the wall instead of dripping on your head.
Sizing the generator
Generators are sized by the enclosure volume, then adjusted up for tile, stone, glass and high ceilings, since those materials absorb heat. The generator sits in a nearby vanity, closet or basement within the manufacturer’s maximum distance, and usually needs a dedicated circuit. Browse steam showers and generators.
Extras worth planning
A bench, a controller at seated height, aromatherapy ports and a good exhaust fan outside the enclosure all make daily use better. See custom tile showers and the bath fan sizing calculator.
Common questions
Can any shower become a steam shower?
Only if it can be fully enclosed and waterproofed for steam. Most steam showers are built during a remodel so the walls and ceiling can be done right.
How big a steam generator do I need?
It depends on the enclosure volume plus adjustments for tile, stone and ceiling height. Manufacturers publish sizing charts, and we size it with you.
Does a steam shower need its own circuit?
Usually yes. Most residential generators need a dedicated circuit sized by the manufacturer, installed by a licensed electrician.
Related: custom tile showers, showers, shower design finder, shower valve guide.
Shop steam showers
Order online, pick up in Keene, or ask us about installation.
Book a consult
Tell us the room, a rough budget range and when you'd like to start. We'll come back with next steps and a realistic timeline, no pressure, no mystery pricing.
