How much does a home sauna cost?
From about £200 for a plug in infrared box to £25,000 and beyond for a bespoke build. Most people spend £3,000 to £9,000 all in. Here is every tier of the market, what moves the number, and the costs the advertised prices leave out.
Prices
What a home sauna really costs
We priced the UK home sauna market in 2026, from budget infrared cabins to bespoke builds. The honest answer comes in three tiers: about £200 to £3,000 for an indoor infrared cabin, £3,000 to £9,000 all in for a proper traditional or outdoor sauna, and £15,000 to £25,000 or more for bespoke work.
The catch is the phrase all in. Much of the market sells flat pack kits, and the price on the listing often covers the timber and little else. The heater, the roof covering and the build are usually extras, and they add thousands.
Our own range runs from £2,999 to £8,399, and every price includes the entry level heater. Outdoor models are built on site by our own team rather than left on a pallet, with delivery and the build quoted separately for your property. Running costs are the other half of the question, and they are lower than most people expect. We cover them separately in how much it costs to run a sauna.
The market in 2026
The three price tiers
Budget
£200 to £3,000
Indoor infrared cabins
Plug in cabins for indoors, with the infrared emitters built in and quick assembly. Panels are thinner and warranties are often short, but as a first step into home heat therapy they are honest value.
Mid market
£3,000 to £9,000
Proper saunas, all in
Where most buyers land. Real traditional and outdoor saunas, from flat pack barrels to cabins built for you. Kit prices start near £3,000, but the heater, the roof and the build push the true cost towards the top of the band.
High end
£15,000+
Bespoke and architect led
Custom builds and premium prebuilt cabins, typically £15,000 to £25,000 and beyond. At this level you are paying for design, glazing and site work rather than better heat.
The small print
Why the advertised price is rarely the real price
Much of the sauna market sells flat pack kits, and the listed price often buys the timber and not much else. Before you compare a kit against an installed sauna, add up what the kit leaves out.
- The heater. Rarely included. A basic electric heater adds £600 or more, a premium wifi model £1,400 to £1,800, and a wood burning stove around £2,000.
- The roof. Many kits ship without a finished roof covering or insulation. Budget £300 to £800 to make it weathertight.
- The build. Professional assembly typically costs £2,500 to £2,700 if you would rather not spend a weekend lifting heavy panels.
- The base. A supplied foundation runs around £1,600, or you arrange your own slab.
Put together, a £3,990 kit becomes £8,500 to £9,500 once it is heated, roofed and built. So the fair comparison is always the delivered, heated, built price. Every Hekla price includes the entry level heater, and our outdoor saunas are built on site by our own team. Delivery and the build are quoted alongside the sauna, so you see the whole number before you commit.
Where the range starts
£2,999
The Infrared 100, our most affordable sauna. A one person indoor cabin with the emitters built in.
£4,899
The Traditional 160, the most affordable way into real Finnish löyly indoors.
£6,399
The Mini Cabin, the easiest way into an outdoor sauna, built on site by our own team.
What is included
Each figure is the from price for that model with its entry level heater. Delivery, the build, groundwork and electrical work are quoted separately, because they depend on your property.
The first decision
Indoor or outdoor?
Indoor
From £2,999
Smaller, simpler, sooner
Indoor saunas are the more affordable route. They are smaller, they do not have to stand up to a British winter, and our infrared models need no separate heater at all. Most are quick build and go together in a few hours.
Outdoor
From £6,399
Larger, weatherproof, built for you
Outdoor saunas cost more, and for good reason. They are larger, they are built to handle year round weather, and our own trained team builds them on site rather than leaving you with a flat pack.
Behind the number
What makes one sauna cost more than another?
Four things move the price, and they are worth understanding before you compare quotes.
- Size. More seats means more timber, a bigger heater and more glass. It is the single biggest factor.
- Indoors or outside. An outdoor cabin needs a weatherproof shell, heavier insulation and an on site build. That is most of the gap between a £4,899 indoor model and a £7,599 outdoor one.
- Heat type. Infrared cabins are cheaper to buy because the emitters are built in and there is no separate heater to fit.
- Materials. Ours are lined in thermally modified aspen, which is more stable and longer lasting than untreated softwood. Cheaper saunas usually save money here first.
Is a home sauna worth it?
A gym membership with sauna access costs a few hundred pounds a year, and you have to travel to it. A home sauna is a one off cost that is ready at ten at night in February. Use it three or four times a week and it pays for itself in membership terms within a handful of years.
Common questions about sauna prices
The Infrared 100, from £2,999. It is a one person indoor cabin with full spectrum infrared emitters built in, so there is no separate heater to buy.
The prices on this page cover the sauna and its entry level heater. Choosing a more powerful heater raises the price, and you can see exactly how much on any model page. Delivery, installation, groundwork and electrical work are quoted separately, because all of them depend on your property and where you live.
Yes, in our range. The cheapest outdoor sauna is the Mini Cabin at £6,399, against £2,999 for the cheapest indoor one. An outdoor cabin needs a weatherproof shell, heavier insulation and an on site build, and that shows up in the price.
That depends on how often you would genuinely use it. Someone using it three or four times a week reaches the point where it has paid for itself, in membership terms, within a handful of years. Someone who uses it twice and then stops has bought an expensive shed. If you are not already a regular sauna user, sit in one at a showroom before you commit.
Finance is arranged through our showrooms rather than centrally, so terms vary. Ask your nearest stockist when you visit.
A well built sauna that is looked after should last decades. Ours are lined in thermally modified aspen, which is treated with heat and steam rather than chemicals, so it resists moisture and movement better than untreated softwood.
See one before you spend
Prices on a page only tell you so much. Sit in a Hekla sauna at a UK showroom, ask what your groundwork would involve, and get a full quote for your property.
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