There are three genuine routes into a sauna business in the UK, and they suit different people at different stages. A franchise buys you a proven brand and system. Buying outright gives you full ownership of the asset and everything it earns. A partnership sits in between: someone else owns and maintains the sauna, you run the site, and you share the revenue. We offer two of those three (buy and partner), so we are not a neutral source, but we can lay out the real differences honestly.
Key takeaways
- A franchise gives you a proven brand, training and systems, but typically comes with an upfront franchise fee plus an ongoing royalty taken from your revenue for the life of the agreement.
- Buying outright means a one-off build cost and nothing else: our container sauna starts from £30,000 ex VAT and our horsebox from £33,000 ex VAT, with finance available from around £1,000 a month. No franchise fee, no ongoing royalty, ever.
- A partnership means no upfront build cost: we build, own and maintain the sauna ("sauna for life"), you provide the site and run the business, and we share a capped percentage of turnover. You keep your own brand, pricing and offer.
- We have built 50 saunas and helped 34 people launch their own sauna business over the last five years, across both buy and partnership routes.
Route 1: Franchise
A franchise is a licence to run a business under someone else's brand and systems, in exchange for money up front and an ongoing share of what you take. The structure is fairly consistent across the industry: an upfront franchise fee on top of your fit-out costs, then an ongoing royalty or management fee, often a percentage of revenue, for as long as the agreement runs, plus rules on approved suppliers, pricing and how the brand is presented. What you get in return is real: a tested format, training, and a system you do not have to build from scratch yourself. It suits someone who wants a fully proven playbook and would rather pay for certainty than work out pricing, marketing and operations from a standing start.
Route 2: Buy outright
Buying outright is the simplest route: you purchase the physical sauna, and everything after that (the pricing, the brand, the site, the hours, whether you ever add a second unit) is your call. There is no franchise fee and no ongoing royalty. A Sauna Box container sauna starts from £30,000 ex VAT, a horsebox from £33,000 ex VAT, both available on finance from around £1,000 a month. Running costs typically sit between £250 and £500 a month for fuel, maintenance and insurance. You are building the customer base, the brand and the routine yourself, with our build guidance, planning and insurance pointers, and the wider Sauna Box operator community behind you. Our guide to starting a sauna business walks through that process in full.
Route 3: Partnership
A partnership sits between a franchise and buying outright. We build, own and maintain the sauna for the life of the arrangement, and you provide the site, the customers and the day-to-day operations. Instead of an upfront build cost, we share a capped percentage of your turnover. Once the build cost is recovered, the share drops. Every deal is modelled around the specific site and shaped in conversation, not pulled from a price list.
What makes it different from a franchise: you keep your own brand, set your own pricing, and run the business your way. There is no franchise fee, no rigid playbook, and no territory restrictions. What makes it different from buying outright: there is no upfront capital outlay, the maintenance and replacement risk sits with us, and you get ongoing support as part of the arrangement. It suits someone who has a great site but would rather not put up the build cost, or who wants to grow a multi-site operation without financing every unit themselves.
Partnerships are selective. We look for sites with strong footfall, operators who are committed to running the business properly, and economics that work for both sides. If you are interested, read more about how our partnerships work or get in touch and we will model it together.
The three routes side by side
| Franchise | Buy outright (Sauna Box) | Partnership (Sauna Box) | |
|---|---|---|---|
| Upfront cost | Franchise fee plus fit-out, set by franchisor | Build cost only, from £30,000 ex VAT | None (we finance the build) |
| Ongoing fees | Royalty, often a % of revenue, for the life of the agreement | None | Capped share of turnover, drops after payback |
| Who owns the sauna | Varies (you may own the fit-out, franchisor owns the brand) | You, outright | Sauna Box (maintained and replaced for life) |
| Brand | Franchisor's brand and rules | Yours entirely | Yours entirely |
| Freedom | Bound to approved suppliers, pricing and territory | Full control | Full control over pricing, hours and offer |
| Support | Structured training and systems from franchisor | Build guidance, community, planning and insurance pointers | Ongoing: build, maintenance, replacement, support |
| Exit | Often restricted, territory may revert to franchisor | Sell, move or keep the asset on your terms | Walk away or renegotiate; asset stays with SB |
| Best for | Wants a proven system, happy to pay for certainty | Wants full ownership and 100% of revenue | Has a great site, wants no upfront cost, happy to share revenue |
Which route is right for you
Three questions to ask yourself:
- Do you have the capital (or want to finance it)? If yes, buying outright gives you 100% of the revenue from day one. If not, a partnership removes the upfront cost entirely.
- Do you want a proven system, or do you want to build your own? A franchise gives you the system. Both our buy and partnership routes let you build your own brand, pricing and offer.
- How important is owning the physical asset? Buying outright means you own it and can sell it. A partnership means we own and maintain it for life, and you focus on running the business.
Most of the operators we work with buy outright. For the right site and the right operator, we also offer selected partnerships where we put the sauna in and share the journey with you. Either way, our Saunapreneur guide is the best place to start exploring, or read about our partnership model if that route interests you. You can also see how the two build types compare in our horsebox vs container sauna comparison, browse our builds, or read how UK operators found their first 100 sauna members.