Mobile sauna & cold plunge
Recovery, delivered
A sauna and ice-cold plunge that comes to you. Sweat deep, plunge hard, and walk away clear, loose and wide awake.
About Hot Box Therapy
Heat and ice, brought to you
Hot Box Therapy is a fully mobile contrast-therapy setup — a sauna, ice-cold plunge tubs and a cool mist shower, towed to wherever you want to switch off. Riversides, gardens, gyms, festivals and private events.
Climb in from the cold, breathe in the cedar, then drop into the plunge to wake every nerve. It's the oldest recovery ritual there is, and we bring the whole thing to your doorstep — no mains, no fuss, just honest heat and a proper cold hit.
The experience
A ritual, not a rush
Self-sufficient and fully mobile, Hot Box carries its own warmth anywhere. Round after round of deep heat and cold water, guided by an operator who's there the whole time — so you can switch off completely and let the day melt away.
Why contrast therapy
Good for the body, kind to the mind
Recover faster
Alternating deep heat and cold water eases tight muscles and stiff joints — the recovery ritual trusted by athletes and trainers alike.
A calmer mind
Heat slows the breath and softens tension; the cold sharpens focus and lifts mood. You step out settled, clear and present.
A natural reset
No supplements, no screens — just hot, cold and breath. The simplest way to feel glowing, resilient and wide awake.
Sessions & packages
Find your warmth
Private Hire
£400up to 6 people · 90 minExclusive use of the whole setup — sauna, cold plunge and mist shower — for you and your group. Bring friends, family or teammates.
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Pop-up Access
£1per minutePay-as-you-go contrast therapy at our events and pop-ups. Drop in, sweat, plunge and go — no commitment, no membership.
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Membership
Gold · Silver · Bronzemonthly plansRecurring access at a member's rate, with priority booking and perks. Tiered plans to suit how often you want to get in.
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Corporate & Events
Enquirevenues & festivalsBring contrast therapy to your gym, wellness day, festival or corporate event. We handle setup, supervision and the full experience.
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Heat, ice and the spaces between
Your safety
Looked after, every session
Heat and cold do you good when they're handled properly. A trained operator is on site for every session, and we run to a strict safety and hygiene routine so you can switch off completely.
Trained operator on site
You're never left unsupervised. An operator stays with you throughout, with a fire extinguisher, first aid kit and phone always within reach.
Health check first
Everyone completes a quick health declaration. The sauna isn't suitable during pregnancy, with heart conditions, high or low blood pressure, epilepsy, or after alcohol.
Sensible time limits
First-timers up to 15 minutes, experienced users up to 20. The sauna runs at a steady 70–90°C, checked and recorded before you step in.
Cold plunge, done right
Plunge tubs are held at 6–12°C with immersion up to 3 minutes. We guide a 5-minute gap after the sauna so the transition is safe.
Clean water, always
UV filtration, ozone sanitation and digital water testing before every group session — fully compliant with UK health and safety regulations.
Full briefing every time
Before your session begins you'll get a complete safety briefing, so you know exactly what to expect from the first round to the last.
Book your session
Reserve your spot by the fire
Tell us when you'd like to come and which session suits you, then sign a quick health waiver to finish. We'll confirm by email within 24 hours.
Your name
Select your dates
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HB-••••
Your pass fills in as you go. Next, a quick health waiver.
Get in touch
Ready to feel the glow?
Book a session, ask about private hire, or bring Hot Box Therapy to your gym, festival or event. We'll bring the heat — and the ice.