THE SAUNA COMPANY
London's leading bespoke sauna builders
Home saunas custom designed & installed
Ready to design your sauna...?
15+ Years
Designing and installing saunas since 2010.
100+ Projects
In London & the surrounding areas
100% Bespoke
Every sauna custom fitted to your exact space on site.
The Sauna Company designs and builds bespoke saunas across London and Surrey — not from a catalogue, but from the ground up, fitted precisely to your space. Every project starts with the part most installers skip: the ventilation and heat engineering.
We don't sell sauna kits — we design and build saunas that actually work. In 15+ years and 100+ bespoke installations across London and Surrey, we've never fitted the same sauna twice, because no two spaces — or clients — are the same. If you want it done properly, from the ventilation up, you've found the right builders.
Bespoke New Sauna Design & Build
We build saunas the way they're supposed to be built — not dropped in as a box, but designed around the room, the heat, and the person seated in it. The kiuas is sized properly, so you're not mildly sweating next to a heater that's too small for the space, or roasting next to one that's oversized for a cabin the size of a wardrobe. The timber is chosen for how it behaves at 90°C and full humidity, not for how it photographs — timber that won't resin-bleed, thermo-aspen where hands and backs meet the wood.
We get the ventilation right, because a sauna that can't breathe becomes an expensive box that smells of damp by year two. And we get the löyly right — stone bed, vent geometry, steam — the difference between a sauna people use every week and one that becomes storage for towels.
We've done this for garden cabins, indoor conversions, and full spa builds, and the process is the same every time: we look at your space, design around it, and build it properly — not assemble parts from a catalogue.
Send us a few photos and your dimensions, and we'll tell you what's actually possible.
Existing Sauna Upgrade & Renovation
Most saunas don't fail all at once — they fail slowly, until one day the wood's gone grey and soft, the heater's dying, and it's colder than it should be after twenty minutes. So we strip back and replace timber that's rotted, cracked, or resin-blackened, matching species and grain so it doesn't look patched. We check the heater against the room — most old cabins were fitted with whatever was cheapest at the time, not what the volume and insulation actually needed, so we resize where it's wrong.
We fix ventilation that was never right in the first place, because that's usually the real reason a sauna feels stale, damp, or takes forever to heat. Wesort out control systems that have degraded or were poorly specified to begin with, and rebuild the stone bed so löyly actually works again instead of just steaming the ceiling.
Whether it's a garden cabin that's had ten hard years, or a hotel sauna that's been neglected between refits, we treat refurbishment as a proper rebuild of what matters, not a cosmetic fix.
Send us photos and dimensions, and we can tell you what needs doing.
SAUNA CASE STUDIES
A disused WC in Notting Hill. A garden shed in Hammersmith. A basement gym in Virginia Water. A loft conversion in Golders Green.
Every space presents a different challenge. Every client has a different vision. We've built saunas in corners that architects said couldn't be done — and delivered a result that became the favourite room in the house.
No two installations are the same. That's the point. If you have a space and an idea, we have a way to make it work. From tiny understairs saunas to luxury hybrid and salt saunas, we have done it all, below are some examples.
Luxury Himalayan Salt Sauna
Weybridge, SURREY
Understairs Space Saving Sauna
Clapham, LONDON
Luxury Hybrid Sauna
Virginia Water, SURREY
Most saunas fail before they're even built. Not because of the timber. Not because of the heater. Because the person who designed them didn't understand ventilation. A sauna that looks beautiful but isn't properly ventilated fills with CO2. The heat becomes stifling. Sessions get cut short. The room gets used less and less — until it becomes an expensive storage.
We've spent 15 years making sure that doesn't happen.
At the home saunas uk Company, we start where most installers stop — with the air. Before we talk about timber finishes or heater brands, we calculate air volumes, model heat distribution, and design a ventilation system that keeps your sauna performing at its best, every session. Then we build it. On-site. To your exact space. Using the finest Scandinavian timbers, premium HUUM and Harvia equipment, and the kind of craftsmanship that adds genuine value to your home.
Over 100 bespoke installations later, we still treat every project as if it's our first.
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