Guide · By Lewis Hogg · November 2026
How much does a garden sauna cost in the UK?
What a garden sauna costs in the UK, using prices UK builders publish themselves: kits, installed cabins, bespoke builds, wood-fired upgrades and the extras people forget.
Most figures you'll find online are guesses. This guide uses only prices UK builders publish on their own websites, with a link to each one.
Prices as published, checked November 2026. Always confirm with the builder.
Published starting prices
| Builder | What you get | From | Source |
|---|---|---|---|
| Nuovo Luxury | 2-person hybrid outdoor sauna, free UK mainland delivery | £5,695 | nuovoluxury.co.uk/collections/outdoor-traditional-saunas |
| Kernow Springs | 2–4 person, delivered and installed in Cornwall & Devon | £5,995 + VAT | kernowsprings.co.uk/saunas |
| Backyard Saunas | Bespoke build on site, East Devon | £7,450 | backyardsaunas.co.uk/saunas/ |
| TLC Spas (Hekla) | Barrel 210 with electric heater (installation from £1,000 extra) | £7,898 | tlcspas.co.uk/saunas |
| Sauna Builders | Insulated cabin, electric heater, installed | £9,500 | saunabuilders.co.uk |
| Kirami UK | Harvia Kaski barrel, delivery and standard installation on UK mainland | £9,500 | kiramiuk.com/outdoor-saunas/ |
| The Sauna Company | Basic garden outdoor sauna or wood-fired box sauna, London & Surrey | £12,995 | saunacompany.co.uk |
| Morgan Garden Studios | Small 2–4 person, installed; base, travel and electrics extra | £17,500 + VAT | morgangardenstudios.com/home-saunas |
Three rough bands
- Under about £8,000. Kits, compact models and some small local builders.
- About £9,500 to £19,000. Installed, insulated cabins. Sauna Builders publishes from £9,500, £14,000–£19,000 for larger cabins with upgraded glazing, groundwork and a dedicated electrical supply, and £20,000–£30,000+ for multi-room builds (source).
- Above that. Architect-led and fully bespoke buildings.
Costs that aren't in the headline price
- Base and groundwork. A level, well-drained slab, pads or ground screws, if you don't already have one.
- Electrical supply. TLC Spas states its electric heaters need a 40-amp supply fitted by a qualified electrician (tlcspas.co.uk/saunas); Nuovo Luxury states a 32-amp supply for electric heaters (nuovoluxury.co.uk).
- Wood-burner upgrade. Sauna Builders' guide is £1,500–£3,500 including flue and installation (saunabuilders.co.uk).
- Delivery and access. A crane or extra labour if a finished building can't be wheeled in.
- VAT. Several published prices are + VAT. Check before you compare.
- Planning. Only if the sauna falls outside permitted development. See our planning permission guide.
Wood-fired, electric or infrared to run
We haven't put running-cost figures here because nobody publishes reliable ones. In broad terms: a wood-fired stove costs you logs and time, but no heavy electrical supply. An electric heater is the simplest to use but draws a lot of power while it heats up. Infrared panels usually draw less and warm you rather than the air, which feels different from a traditional sauna. Ask each builder what their heater uses.
How to get comparable quotes
Ask every builder to quote on the same basis, in writing:
- The same size and number of people
- The same heater type and model
- Whether the base is included
- Whether the electrical connection is included
- Whether the price includes VAT
- Delivery and installation
- Warranty, in writing. For example, TLC Spas lists 5 years on the structure and 2 years on the heater, and Wellness One lists 5-year structural cover on some models.
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