Steam rooms, built to last.
From an existing shower to a commercial facility, we design steam rooms around your space and build them to cope with constant heat and humidity.
Steam generators start from about $7,900. A fully tiled home steam room is a bigger job than a sauna, so send us the space and we'll give you a real number.
Waterproof first. Beautiful second.
A steam room lives or dies on what's behind the tiles. We build with timber or steel framing, line with XPS foam sheets, apply council-approved waterproofing and finish with your choice of tiles.
- Framing and liningTimber or steel framing, lined with XPS foam sheets on the walls and ceiling: waterproof, insulating and built to last.
- Council-approved waterproofingApplied and documented properly, because steam finds every gap.
- Curved ceilingsSo condensation runs down the walls instead of dripping on you.
- Benches, lighting and scentTiled or mosaic benches, fibre-optic lighting and automatic scent dosing.
- Steam generatorsHarvia generators, sized to the room.
A steam room in the Maldives.
Kudadoo Private Island was named Best New Luxury Hotel of 2018 by Luxury Travel Intelligence, and FinnSauna was chosen to build the sauna and steam room for its Sulha Spa. Curved tiled benches, a star-lit ceiling, and the Indian Ocean outside the door.
Same process as every job we do. Just a slightly longer commute.
See the projectSteam rooms we've built.

Kudadoo Private Island
The sauna and steam room at Sulha Spa, Kudadoo: an adults-only private island resort in the Maldives.

Ocean Spa
A complete renewal of the sauna and steam room at Napier City Council's Ocean Spa, right on Marine Parade.

Life-changing steam room
A free-standing steam room, built so our client can enjoy steam whenever she likes.

Sauna and steam room
A sauna and steam room built side by side into a new Flat Bush home, with a layout error caught and fixed before the framing was finished.

Pool house pair
A sauna and steam room built onto a family pool house, with nothing held back.
Let's talk about your next sauna.
A new build, a heater, a steam room or a service — tell us what you have in mind and you'll get a straight answer from a builder, not a call centre.