Range 05 · 4.5–23.9m²
An outdoor sauna unlike any other — the home sauna, taken underground. Earth-sheltered cave saunas hold heat and silence the way barrel and cabin saunas never can — domed vaults circulate steam like nothing else on the market.
ASSET IN FOLDER → ../Sauna Homepage.jpg (temp hero — replace with retouched final)The Physics
A barrel sauna fights the weather; a cabin sauna leaks heat through every wall. A cave sauna is wrapped in earth — the best insulator there is. It heats faster, holds temperature longer, uses less wood or power, and the domed vault rolls steam around the room instead of trapping it at the ceiling.
Beyond the Löyly
The larger configurations pair the sauna with spa rooms, showers and kitchens — a wellness suite in the garden. Training at home too? Pair it with a garden gym.
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ASSET: sauna-spa-room.webp — finalThe Journey
Scoping call, design, siting, install — the modules arrive finished and connect in days. The full process is on how it works.
FAQ
Both are available. Wood-burning stoves are hand-matched to the room volume; electric heaters suit sites where flues are impractical.
Smaller cave saunas often fall within permitted development. Where consent is needed we handle it end to end — see the planning guide.
Very little. The concrete vault does not rot, warp or need retreating like timber saunas; interior woodwork needs only the care of any quality sauna.
More questions? See the full FAQ.
Book a scoping call to plan your cave sauna — or download the brochure to see every configuration.
The full price list, what's included module by module, and the process from first call to handover.