The short answer
There is no single right answer — it depends on your budget, how often you'll use it and where you'll put it. An inflatable hot tub is the lowest-priced way in, typically under £1,000, portable and quick to set up, but it insulates less well so it tends to cost more to run and lasts fewer years. A solid (hard-shell) tub costs far more up front — commonly £6,000–£9,000 fitted — but is better insulated, more durable, holds heat better and usually works out lower in running cost per month. The right choice balances upfront budget, how much you'll use it, running cost and how permanent you want it to be.
The decision is really a trade-off between a low upfront price and a lower long-term running cost. Here is how the two compare on the things that matter — without the brochure spin.
At a glance
- Inflatablelow upfront, higher running cost
- Solid (hard-shell)high upfront, lower running cost
- Inflatable lifespanfewer years
- Solid lifespanmany years if maintained
- Best for trying it outinflatable
How they compare
An inflatable tub is the lowest-priced and most flexible option: you can set it up, pack it away, and move it. The trade-off is insulation — it loses heat faster, so it costs more to keep hot and isn't ideal for heavy winter use. A solid hard-shell tub is a bigger commitment and a bigger spend, but the insulated cabinet and tight cover hold heat far better, so for regular, year-round use it usually works out lower in running cost and lasts much longer.
| Factor | Inflatable | Solid (hard-shell) |
|---|---|---|
| Upfront cost | under £1,000 | £6,000–£9,000 fitted |
| Running cost | higher (more heat loss) | lower (well insulated) |
| Lifespan | fewer years | many years if maintained |
| Setup | portable, DIY | fixed, needs a base & electrics |
General comparison for guidance; exact figures depend on the model and use. Sources: A6 Hot Tubs and WhatSpa guides.
How to choose for your situation
- Trying it out or tight budget? an inflatable is the lowest-priced way to start and can be packed away off-season.
- Regular, year-round use? a solid tub's insulation usually works out lower in running cost and is more comfortable in winter.
- Limited space or renting? an inflatable's portability suits a temporary or movable setup.
- Want it to last and add to the garden? a solid tub is the more durable, permanent choice.
Not sure which type suits you?
We'll match you with a vetted hot tub supplier or installer who can talk through inflatable and solid options for your budget, space and how you plan to use it.
Frequently asked questions
Is an inflatable or solid hot tub better?
An inflatable is the lowest-priced and most portable, but insulates less well so it costs more to run and lasts fewer years. A solid hard-shell tub costs far more up front but is better insulated, more durable, and usually works out lower in running cost for regular use. The right choice depends on budget and how often you'll use it.
Do inflatable hot tubs cost more to run?
Often yes. Inflatables generally have less insulation than solid tubs, so they lose heat faster and can cost more per month to keep hot — particularly in winter — even though they are cheaper to buy.
How long does a hot tub last?
An inflatable tub typically lasts fewer years, while a well-maintained solid hard-shell tub can last many years. Lifespan depends on quality, use and how well it's looked after.
Sources & further reading
Figures on this page are typical UK ranges drawn from published sources and depend on the tub, its insulation and your electricity tariff. They are guidance, not a quotation.