Ad Best outdoor saunas under £5,000 (UK, 2026): what the money really buys
Every outdoor sauna we found under £5,000 at four UK retailers, with heater included or not, plus what you'll pay on top for a base, electrics and assembly. Prices checked 10 November 2026.
Quick answer
Yes, you can get a proper outdoor sauna for under £5,000. On 10 November 2026 the cheapest with an electric heater included were the SaunaPlunge Brontë (£2,900, 1–2 people), the Steam & Oak Vaat 200 and Koda 130 with a Harvia Wall 6kW (£3,495 each, spruce) and the CenturaHeat 4–6 person barrel (£3,750). But under £5,000 for the sauna rarely means under £5,000 in total: a base, a dedicated circuit and assembly typically add £2,000–£5,000. A wood-fired stove or a 13A plug-in outdoor infrared cabin can cut the electrics bill.
Under £5,000 buys a real timber sauna with a Harvia heater, but the sticker price is only part of the bill. We list every outdoor sauna under £5,000 (with a heater, or with a heater option that keeps it under £5,000) that we found at Outdoor Living 365, Steam & Oak, Pro-Line Direct and Polar Recovery, cheapest first, followed by what you’ll pay on top. We haven’t tested these; specs are as published.
| Model | From | People | Heat | Power |
|---|---|---|---|---|
| SaunaPlunge Brontë 1–2 person cabin Outdoor Living 365 | £2,900 | 1–2 | 4.5kW Harvia Vega electric heater (included) | Dedicated 20A hard-wired supply; the retailer says it cannot run from an outdoor socket |
| SaunaPlunge Yorkshire Cabin outdoor infrared (2 person) Outdoor Living 365 | £2,900 | 2 | Infrared panels, 2,220W rated | Standard 13A supply per the retailer (have an electrician check the outdoor socket) |
| Steam & Oak Vaat 200 barrel sauna Steam & Oak | £2,945 | – | Choice of Harvia Wall 6kW, Harvia Cilindro 6.8kW, Harvia M3 wood-fired or FinSteam gas | Electric heaters need their own supply; wood and gas versions need no electrics |
| Steam & Oak Koda 130 compact garden sauna Steam & Oak | £2,945 | – | Choice of Harvia Wall 6kW or Cilindro 6.8kW | – |
| CenturaHeat 4–6 person outdoor wood barrel Pro-Line Direct | £3,750 | 4–6 | 6,000W electric stove (included) | 32A |
| Steam & Oak Saaren 250 barrel with covered terrace Steam & Oak | £3,750 | 2–4 | Harvia Wall 6kW or 8kW, Harvia M-series wood-fired, or FinSteam gas | – |
| CenturaHeat 4–6 person outdoor cube (hybrid) Pro-Line Direct | £4,500 | 4–6 | 6,000W stove plus 3,500W infrared panels | 32A for the stove, 16A for the infrared |
| SaunaPlunge Pennine Barrel (4 person) Outdoor Living 365 | £4,500 | Up to 4 | 6kW Harvia electric heater (included) | Hard-wired on a dedicated circuit by a qualified electrician |
| Polar Recovery Sauna Cube Mini (2 person) Polar Recovery | £4,699.99 | 2 | Harvia Vega 3.5kW electric heater (included) | Dedicated 32A supply with isolator or 32A commando socket (retailer guidance) |
| PortaSauna HEX 4 person portable sauna Steam & Oak | £1,850 | 4 | Wood-burning stainless steel stove (included) | None needed |
The total you should budget
| Item | Typical cost | Source |
|---|---|---|
| Sauna with heater | £2,900–£4,999 | Retailer prices in this guide |
| Assembly | £0 (DIY) to £2,000 | £750 Steam & Oak; £850 Outdoor Living 365 barrels; £1,200–£2,000 Polar Recovery |
| Base | £0 (existing patio) to £1,000+ | £800–£1,000 for a laid 3 × 4m concrete base (JobPrices, 2026) |
| Electrics | £0 (wood-fired) to £2,000 | £700–£1,100 up to 15m; £1,200–£2,000 for 15–30m (M62 Electrical, 2026) |
The full breakdown is in our garden sauna cost guide, and you can run your own numbers in the cost calculator.
The saunas, cheapest first
Cheapest traditional sauna with a heater
SaunaPlunge Brontë 1–2 person cabin
From £2,900 at Outdoor Living 365
£2,900 including a 4.5kW Harvia Vega heater. Price checked 10 November 2026.
- Capacity
- 1–2 people
- Heat
- 4.5kW Harvia Vega electric heater (included)
- Power
- Dedicated 20A hard-wired supply; the retailer says it cannot run from an outdoor socket
- Size
- 1200 × 1100 × 2000mm (W × D × H)
- Build
- Thermo-treated spruce
A one-to-two-person thermo-treated spruce cabin, 1.2 × 1.1m, with a 4.5kW Harvia Vega. It needs a dedicated 20A hard-wired supply. Small, but the lowest price for a permanent traditional sauna we found.
See current price at Outdoor Living 365 Ad
Specs are as published by the retailer. We have not tested this product.
Outdoor infrared on a 13A supply
SaunaPlunge Yorkshire Cabin outdoor infrared (2 person)
From £2,900 at Outdoor Living 365
£2,900. Price checked 10 November 2026.
- Capacity
- 2 people
- Heat
- Infrared panels, 2,220W rated
- Power
- Standard 13A supply per the retailer (have an electrician check the outdoor socket)
- Size
- 1200 × 1050 × 1900mm
- Build
- Thermo-treated spruce
Same price as the Brontë, but infrared (2,220W) and listed as running from a standard 13A supply. That can make it the cheapest outdoor option overall if you already have a suitable RCD-protected outdoor socket; the retailer says to have an electrician check it. It runs cooler than a traditional sauna and you can’t make steam.
See current price at Outdoor Living 365 Ad
Specs are as published by the retailer. We have not tested this product.
Compact barrel, three heater types
Steam & Oak Vaat 200 barrel sauna
From £2,945 at Steam & Oak
£2,945 shell only (spruce); £3,495 with Harvia Wall 6kW; thermowood from £3,595. Price checked 10 November 2026.
- Heat
- Choice of Harvia Wall 6kW, Harvia Cilindro 6.8kW, Harvia M3 wood-fired or FinSteam gas
- Power
- Electric heaters need their own supply; wood and gas versions need no electrics
- Size
- 2.0 × 1.6m; 0.9m² hot room
- Build
- 42mm Nordic spruce or thermowood
- Warranty
- 5-year manufacturer warranty if the timber is treated as recommended
£3,495 with a Harvia Wall 6kW in spruce, or £3,715 with a Harvia M3 wood stove (no electrics needed). Thermowood adds £650. The hot room is 0.9m².
See current price at Steam & Oak Ad
Specs are as published by the retailer. We have not tested this product.
Compact cabin shape
Steam & Oak Koda 130 compact garden sauna
From £2,945 at Steam & Oak
£2,945 shell only (spruce); £3,495 with Harvia Wall 6kW. Price checked 10 November 2026.
- Heat
- Choice of Harvia Wall 6kW or Cilindro 6.8kW
- Size
- 2.0 × 1.3m; 1.1m² hot room
- Build
- 42mm Nordic spruce or thermowood; glass-front options
- Warranty
- 5-year manufacturer warranty if the timber is treated as recommended
The cabin-shaped twin of the Vaat 200, 2.0 × 1.3m with a 1.1m² hot room. £3,495 with a Harvia Wall 6kW in spruce; glass-front and thermowood versions cost more.
See current price at Steam & Oak Ad
Specs are as published by the retailer. We have not tested this product.
Most people for the money
CenturaHeat 4–6 person outdoor wood barrel
From £3,750 at Pro-Line Direct
£3,750 (listed as reduced from £5,006). Price checked 10 November 2026.
- Capacity
- 4–6 people
- Heat
- 6,000W electric stove (included)
- Power
- 32A
- Size
- 1800 × 2400 × 1800mm (W × D × H)
- Build
- Canadian spruce
A four-to-six-person spruce barrel with a 6,000W stove for £3,750, on a 32A supply.
See current price at Pro-Line Direct Ad
Specs are as published by the retailer. We have not tested this product.
Barrel with a covered terrace
Steam & Oak Saaren 250 barrel with covered terrace
From £3,750 at Steam & Oak
£3,750 cabin only (spruce); £4,239 with Harvia Wall 6kW; £4,520 wood-fired. Price checked 10 November 2026.
- Capacity
- 2–4 people
- Heat
- Harvia Wall 6kW or 8kW, Harvia M-series wood-fired, or FinSteam gas
- Size
- 2.5m long; allow 250 × 205cm plus access
- Build
- 42mm Nordic spruce or thermowood
- Warranty
- 2 years
£4,239 with a Harvia Wall 6kW, or £4,520 wood-fired, in spruce. Thermowood adds about £450.
See current price at Steam & Oak Ad
Specs are as published by the retailer. We have not tested this product.
Traditional plus infrared
CenturaHeat 4–6 person outdoor cube (hybrid)
From £4,500 at Pro-Line Direct
£4,500 (listed as reduced from £5,848). Price checked 10 November 2026.
- Capacity
- 4–6 people
- Heat
- 6,000W stove plus 3,500W infrared panels
- Power
- 32A for the stove, 16A for the infrared
- Size
- 2000 × 1800 × 2000mm (W × D × H)
- Warranty
- 1 year on electrics, 2 years on wood
A 2 × 1.8m cube with a 6,000W stove and 3,500W of infrared panels, at £4,500. It needs two supplies: 32A for the stove and 16A for the infrared.
See current price at Pro-Line Direct Ad
Specs are as published by the retailer. We have not tested this product.
Free delivery, £850 install option
SaunaPlunge Pennine Barrel (4 person)
From £4,500 at Outdoor Living 365
£4,500 including a 6kW Harvia heater. Price checked 10 November 2026.
- Capacity
- Up to 4 people
- Heat
- 6kW Harvia electric heater (included)
- Power
- Hard-wired on a dedicated circuit by a qualified electrician
- Size
- 1800 × 1800 × 1930mm
- Build
- Spruce, tiled roof
A four-person spruce barrel with a 6kW Harvia heater at £4,500. With the retailer’s £850 installation add-on, it’s £5,350 before the base and electrics.
- Free UK delivery; the retailer lists barrel sauna installation as an £850 add-on.
- Retailer says to site it on level decking, paving or concrete, away from standing water.
See current price at Outdoor Living 365 Ad
Specs are as published by the retailer. We have not tested this product.
Thermowood under £5,000
Polar Recovery Sauna Cube Mini (2 person)
From £4,699.99 at Polar Recovery
£4,699.99 wooden front or £5,499.99 glass front. Price checked 10 November 2026.
- Capacity
- 2 people
- Heat
- Harvia Vega 3.5kW electric heater (included)
- Power
- Dedicated 32A supply with isolator or 32A commando socket (retailer guidance)
- Size
- 216 × 167 × 120cm external (H × W × D); 2.8m³ inside
- Build
- Thermowood, 45mm walls
- Warranty
- 2 years
The only thermowood cube with a heater included under £5,000 in this list: a two-person cabin with 45mm walls, a 2.8m³ interior and a 3.5kW Harvia Vega, at £4,699.99 with a wooden front. Polar recommends a dedicated 32A supply.
See current price at Polar Recovery Ad
Specs are as published by the retailer. We have not tested this product.
Portable, no electrics
PortaSauna HEX 4 person portable sauna
From £1,850 at Steam & Oak
£1,850. Price checked 10 November 2026.
- Capacity
- 4 people
- Heat
- Wood-burning stainless steel stove (included)
- Power
- None needed
- Build
- Tent on fibreglass frame, cedar bench
Not a cabin: a four-person sauna tent on a fibreglass frame with a wood-burning stainless steel stove, at £1,850. It needs no base or electrics, so it’s the cheapest way to try a sauna at home, but it won’t feel like a timber room.
See current price at Steam & Oak Ad
Specs are as published by the retailer. We have not tested this product.
Price drops and 'was' prices
Pro-Line Direct shows several CenturaHeat saunas as reduced, and Polar Recovery shows “was” prices. We report the price on the day we checked. We can’t verify how long a “was” price applied, so we don’t treat it as a saving.
Frequently asked questions
What's the cheapest outdoor sauna worth buying in the UK?
The cheapest permanent outdoor sauna with a heater included that we found was the SaunaPlunge Brontë 1–2 person cabin at £2,900, with a 4.5kW Harvia Vega. Below that, portable options such as the PortaSauna HEX (£1,850, wood-burning stove) are tents rather than timber cabins.
What's the total cost of a £4,000 garden sauna?
Typically £6,000–£9,000 all in. Assembly costs £750–£2,000 at the retailers we checked (or nothing if you build it yourself), a laid concrete base about £800–£1,000 for a 3 × 4m slab, and a new electrical supply £700–£2,000 depending on distance. Use our calculator to plug in your own figures.
Are cheap outdoor saunas made of spruce?
Mostly. The lowest prices in this guide are for Nordic or Canadian spruce. Thermowood versions of the same Steam & Oak models cost about £450–£650 more. Spruce needs an exterior treatment after assembly and periodically after that.
Sources
We read each of these on or before 10 November 2026. Retailer links in this list are plain links, not affiliate links.
- Outdoor Living 365: Brontë 1–2 person cabin
- Outdoor Living 365: Yorkshire Cabin outdoor infrared
- Outdoor Living 365: Pennine Barrel 4 person
- Steam & Oak: Vaat 200 barrel sauna
- Steam & Oak: Koda 130 compact garden sauna
- Steam & Oak: Saaren 250 barrel sauna
- Steam & Oak: PortaSauna HEX
- Pro-Line Direct: CenturaHeat 4–6 person outdoor wood barrel
- Pro-Line Direct: CenturaHeat 4–6 person outdoor cube hybrid
- Polar Recovery: Sauna Cube Mini
- JobPrices: concrete base cost UK 2026
- M62 Electrical: garden office and outbuilding electrics cost 2026