How Much Does a Sauna Cost in the UK? (2026 Price Guide)

The short answer

Most UK home saunas land between £3,000 and £12,000 fully installed, with small indoor infrared cabins at the cheaper end (from around £1,500) and bespoke outdoor builds pushing past £20,000. The range is wide because a sauna’s final price depends on its type, its size, the quality of the timber and heater, and — often the biggest single variable — how much groundwork, electrical work and installation labour your specific site needs.

The numbers below are based on UK supplier list prices and installer quotes current in 2026. Where you sit in each range comes down mostly to three things: how many people you want to fit inside, whether it’s going indoors or outdoors, and whether you’re buying a kit to install yourself or paying an installer to handle the lot.

Cost by sauna type (2026 UK prices)

Type	Unit only	Fitted (base + electrics included)
Infrared cabin (1–2 person, indoor)	£1,500–£3,500	£1,800–£4,500
Infrared cabin (3–4 person)	£2,800–£6,000	£3,500–£7,500
Barrel sauna (4 person, outdoor)	£4,000–£7,500	£5,500–£10,000
Cabin sauna (4–6 person, outdoor)	£5,500–£12,000	£8,000–£15,000
Indoor traditional sauna (room conversion)	£3,500–£8,000	£5,500–£11,000
Bespoke / luxury outdoor cabin	£10,000+	£15,000–£25,000+

What pushes a build from the bottom to the top of its bracket is usually the same handful of upgrades: Nordic spruce or thermo-treated cladding instead of stock pine, a name-brand heater (Harvia, HUUM, Tylö) instead of a generic, a full-glass front, integrated cabin lighting, and thicker wall insulation. None of these are essential. Each adds £300–£1,500.

What’s actually included in a sauna price

UK suppliers sell saunas in three broad ways, and the headline price means very different things depending which you’re looking at.

• Kit only. The cabin (pre-cut or panelised), the heater, the controls, and usually the benches and stones. You arrange your own base, electrics and assembly. Cheapest on paper, but you’re taking on the install yourself or paying separately for it.
• Fitted. The supplier delivers, builds and commissions the sauna on a base you’ve prepared. Some include the base and the final electrical connection; many don’t. Always ask.
• Bespoke. A UK installer designs the sauna to your space — a garden corner, a specific room, an awkward outbuilding — sources the materials and builds in situ. The most flexible and the most expensive.

Hidden costs most quotes don’t include

The kit price is rarely what you actually pay. The four costs below are the ones that catch people out — none are huge in isolation, but together they can add £1,500–£3,500 to an outdoor install.

Base and groundwork

An outdoor sauna needs a flat, level, weight-bearing base — usually a concrete pad, paving slabs on hardcore, or a properly built timber deck. For a 4-person barrel or small cabin, expect £400–£1,500 depending on access and ground conditions. If the installer needs to remove turf, dig out and pour a concrete foundation, the upper end is normal.

Electrics

A small infrared cabin runs off a standard 13A plug. A traditional electric heater bigger than around 4.5kW needs a dedicated circuit run from your consumer unit, properly RCD-protected and certified. Budget £250–£800 for a 13A outdoor circuit, or £600–£1,500 for a dedicated 32A supply for larger heaters. Add another £400–£900 if your consumer unit needs upgrading to accept the new circuit. This work has to be done by a Part P–registered electrician.

Delivery and access

Most UK suppliers quote kerbside delivery as standard. If the sauna can’t be wheeled or carried to its final position — common with barrel saunas, which arrive as one heavy assembled unit — you may need a crane to lift over a wall or fence. £100–£500 for straightforward kerbside; £400–£1,200 if a HIAB or crane is involved.

Roof shingles, chimney flashing and the bits in between

Wood-fired saunas need a properly installed flue and chimney, which adds £200–£600 depending on roof type. Bituminous shingles for the roof of an outdoor cabin sit at the lower end of that range. None of these are optional once you’ve committed to the model — worth checking they’re in the quote, not pencilled in as extras.

Running costs — the quick version

A typical 6kW electric sauna heating for 60 minutes at the current UK unit price of 28–30p/kWh (per Ofgem’s energy price cap) works out at roughly 90p–£1.10 per session. Infrared cabins are cheaper to run because the heating elements are smaller (1.5–2.5kW for most home models) and you don’t need to pre-heat for as long — figure on 40–60p per session.

For a household using a sauna twice a week, that’s £8–£10 a month on electricity. Wood-fired saunas come in cheaper per session if you have access to seasoned firewood, but you’re trading cost for the time and effort of lighting and tending the stove. For a fuller breakdown by type, see our guide to what a sauna actually costs to run.

How to know if you’re paying a fair price

The single most useful thing you can do is get quotes from at least two UK installers and compare them line by line. Make sure each quote spells out whether the base, the electrical work and final commissioning are included — those are the lines that hide the most variation.

On the cabin itself, ask what timber grade is being used (Nordic spruce, thermo-aspen and Canadian cedar are the common quality options) and what heater brand is fitted. A 5-year heater warranty is the UK norm; anything shorter is a flag. If a quote comes in noticeably below the ranges above, ask where the saving is coming from before you commit.

If you’d rather skip the legwork, the easiest route is to browse our directory of UK sauna installers and request a quote from someone who works in your area and can scope the site properly before quoting a number.

Frequently asked questions

How much does a 2-person sauna cost in the UK?

A 2-person indoor infrared cabin typically costs £1,500–£3,500 for the unit, or £1,800–£4,500 fully installed. A 2-person traditional electric cabin sauna runs a bit higher — £2,500–£5,000 for the unit — because of the heavier timber construction and the more powerful heater.

Are barrel saunas cheaper than cabin saunas?

Usually yes, at the same capacity. A 4-person outdoor barrel sauna typically sits at £4,000–£7,500 for the kit; a 4-person square cabin of equivalent quality is more often £5,500–£9,000. The barrel shape uses less material and is faster for installers to assemble. Cabin saunas give you more headroom and a more conventional interior, which some buyers prefer.

Do I need planning permission, and does it affect the cost?

For most outdoor saunas in a domestic garden, no — they fall under permitted development as long as they meet the standard size and siting rules. If you do need a full planning application (large builds, properties in conservation areas or on listed sites, or sites without permitted development rights), add £200–£600 for the application itself plus drawings, plus several weeks of timeline. See our guide on whether you need planning permission for an outdoor sauna for the detail.

Is a home sauna worth the money?

It depends on how often you’d genuinely use it. A sauna used three or more times a week pays back in cost-per-session terms within a few years (compared to spa or gym day passes), and the cardiovascular evidence base for regular use is strong. If you’d use it once a month, it’s an expensive bit of garden furniture. For more on the health case, see what the science actually says about sauna benefits.

Can I get a sauna on finance in the UK?

Most established UK sauna suppliers offer interest-bearing finance via Klarna, V12 or a similar provider, typically over 24–48 months. A handful offer 0% finance on selected models. Terms vary widely — check the APR, the deposit required, and whether the installer is included in the financed amount or has to be paid separately.

If you’re ready to turn this range into a real number for your home, take a look at our other guides on planning a UK sauna install or find a UK sauna installer near you and ask for a site-specific quote. The biggest cost variance comes from groundwork and electrics rather than the cabin itself, so a 15-minute conversation with someone who can see your space will get you a far more useful number than any online estimator.