The price for installing a sauna depends on a number of factors and can vary significantly depending on the size of the sauna, the materials used for construction, the type of sauna (e.g. infrared, traditional, hybrid, combi-bio), the type of heater and controls chosen, the location of the sauna in relation to the property (how easy or difficult is the access to build), and the features and accessories that are desired.

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In general, the cost of building a new standard indoor sauna of good quality (assuming that there is reasonable access to where the sauna is to be fitted) can range from around £10,000 for a small traditional Finnish sauna to £40,000 for a large 12-seater climate controlled facility, excluding any builders work or flooring / drainage / electric connections. Dry Infra Red (IR) saunas are typically less expensive, with prices ranging from about £7,500 (IR saunas are quite easy to install and don't need any drainage or electrical supply upgrade usually).

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Outdoor Saunas, built like a garden room, and not like a garden shed, start from £20,000 for a standalone sauna and can go up to wherever you want, as you can have a sauna with a steam room, changing space, seating, shower, WC, pantry, bar and even a gym. If you are considering building a new sauna or refurbishing an existing one, it is important to carefully consider the available choices and get professional advice to ascertain what would suit your property and your lifestyle.

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Other things that affect the price of a sauna are mood lighting, glass front and side panels, music systems and degree of connectivity required (it is possible to monitor and control your sauna remotely via wifi controllers). If the sauna is installed outdoors, it is necessary to build a good quality attractive weatherproof enclosure, preferably with a sheltered changing and cooling off space (not the typical barrel sauna or log cabin sauna) so that the sauna is inviting and gets actual use. In our line of business we have seen our fair share of garden storage sheds that started life as a sauna.

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We reckon that the difference between a “good traditional Finnish Sauna and a great Combi-Bio Sauna” is around one and a half times, so you can spend  £10,000 and get a nice looking 4 seater traditional sauna with decent timber, standard lighting and a manual on-off heater, while £15,000 would fetch you an excellent, fully programmable, premium timber, feature LED lighting and remotely controlled sauna of a similar capacity. In case the sauna is being installed outdoors, a good quality sauna enclosure would add another £7,500 to £15,000 depending on what look you want.

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* All prices exclude VAT

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Now that you know what affects the price of your sauna, let's have a look at the major components individually (some things like insulation, ventilation, basic frame are common for all saunas).