Cocktail pool cost is the question that comes up as soon as someone realises a full-size pool won’t fit their garden or their budget. A cocktail pool is small, but it’s still a pool: 11 tonnes of water, a reinforced slab, proper waterproofing and kit that runs for years. In this post I’ll break down what a DIY cocktail pool really costs in 2026, line by line, so you can see where the money goes and which decisions move the total the most.
I’ve used a 12ft x 8ft (3.66m x 2.44m) pool, about 4ft (1.2m) deep, as the example throughout, because it’s the most popular cocktail pool size I sell plans for. All figures are rough 2026 ranges in US dollars and pounds sterling. They vary a lot by region, supplier and exchange rate, and the pound figures are typical UK prices rather than straight conversions. Use them as a starting point for your own quotes.
What a professionally installed cocktail pool costs
It helps to know what you’re comparing against. HomeAdvisor puts the average cocktail pool or spool at around $22,650, with a range of $5,500 to $50,000 including labour, and says labour is typically 25–50% of the total. Angi puts a professionally installed plunge pool, the nearest like-for-like, at an average of about $28,000, with concrete pools at $20,000–$75,000.
In the UK, Checkatrade’s guide puts a concrete in-ground plunge pool at £15,000–£25,000 plus £1,500–£4,500 labour, and a heater at another £1,200–£2,600. Those UK figures were last updated in 2024, so expect today’s quotes to be higher.
DIY cocktail pool cost at a glance
Here’s how a 12ft x 8ft x 4ft (3.66m x 2.44m x 1.2m) DIY cocktail pool breaks down. I’ve split it into a budget build (block walls, render and pool paint, simple filtration, no heat pump) and a full-spec spool (ICF walls, mosaic tiles, jets, a heat pump and a good cover), because those two decisions swing the total more than anything else.
| Part of the build | Budget build (US / UK) | Full-spec spool (US / UK) |
|---|---|---|
| Excavation and spoil removal | $800–$1,500 / £700–£1,300 | $1,500–$2,500 / £1,300–£2,000 |
| Sub-base, rebar and concrete slab | $1,000–$1,500 / £800–£1,200 | $1,500–$2,000 / £1,200–£1,600 |
| Walls, benches and steps | $1,500–$2,000 / £1,200–£1,600 | $2,500–$3,500 / £2,000–£2,800 |
| Render, waterproofing and finish | $1,500–$2,500 / £1,200–£2,000 | $4,000–$7,000 / £3,200–£5,600 |
| Plumbing, filtration and equipment | $1,500–$2,500 / £1,200–£2,000 | $3,000–$5,000 / £2,400–£4,000 |
| Heating | $0–$800 / £0–£600 | $2,500–$5,000 / £2,000–£4,000 |
| Electrics (qualified electrician) | $1,000–$2,000 / £600–£1,200 | $1,500–$3,500 / £1,000–£2,500 |
| Cover | $300–$800 / £250–£600 | $800–$1,500 / £600–£1,200 |
| Rough total, plus plans | about $8,000–$14,000 / £6,000–£10,500 | about $17,000–$30,000 / £14,000–£24,000 |
Not included: fencing or barriers, decking or paving, permits and any engineer’s fees. I cover those further down, because on some sites they add as much again.
Where the cocktail pool cost actually goes
Plans and design
The smallest line on the list, and the one that saves you the most elsewhere. A proper set of plans tells you how deep to dig, how much concrete and steel to order, how many blocks you need and where every pipe goes. My 12ft x 8ft cocktail pool plans include architectural drawings, imperial and metric dimensions and a shopping list, so you can price your own build before you dig. If you want a little more room, there’s also a 14ft x 10ft version.
Excavation and spoil: the cost people forget
Most DIYers hire a mini digger rather than dig by hand. In the UK, self-drive hire runs roughly £80–£240 a day in 2026 depending on the machine, or £300–£500 a day with an operator, before VAT, delivery and fuel. US rental rates are in a similar range in dollars.
The bigger surprise is the spoil. A 12ft x 8ft pool needs a hole of roughly 14ft x 10ft x 4½ft (4.3m x 3m x 1.4m) to leave room for the slab and walls. That’s around 23 cubic yards (18m³) of soil in the ground, and it bulks up by a third or so once it’s dug. That’s several skips’ worth, so a grab lorry or a dumper and a tipping run is usually cheaper. Before any digging, check for buried services: call 811 in the US, or use LinesearchbeforeUdig in the UK.
The slab and walls
This is where a cocktail pool stops being a big hot tub. A 12ft x 8ft pool, 4ft deep, holds about 2,900 US gallons (11,000 litres) of water, roughly 11 tonnes. The slab, rebar and walls have to be designed for that, and on a deep pool, poor ground or a sloping site it’s worth paying a structural engineer to check the design. Local building rules apply.
For the slab you’re looking at roughly 2½–3 cubic yards (1.9–2.3m³) of concrete, plus rebar and a compacted sub-base. Ready-mix is roughly $160–$195 per cubic yard in the US and £100–£160 per m³ in the UK in 2026, but small loads often carry a short-load charge, so ask about that when you get quotes.
For walls, concrete block is the cheapest option. ICF (insulated concrete forms) costs more up front, roughly $4.50–$6.50 per square foot of wall in the US plus the concrete to fill them, but the insulation is built in. On a pool you’ll heat, that pays you back every year. I compare the two in detail in my step-by-step cocktail pool build guide.
Render, waterproofing and finish
This is where budgets swing the most. The render and waterproofing aren’t optional, and they have to be right.
The finish is a matter of taste and budget. Render and pool paint is the cheapest. Large-format tiles are quicker to lay. Glass or porcelain mosaic costs the most and takes the longest, but the finish is in a different league. Don’t price it from the footprint: on a 12ft x 8ft pool, the floor, four walls, benches and steps add up to roughly 280–300 sq ft (26–28m²) of tiled surface, plus coping, pool-grade adhesive and grout.
Plumbing, filtration and equipment
A simple cocktail pool needs a pump, a filter (sand or cartridge), skimmer or overflow, suctions and returns, pipe, valves and fittings, and lights if you want them. A spool adds hot tub jets, a jet pump, more pipework and possibly an air blower.
The equipment also needs a dry, ventilated control room close to the pool, with its own drain.
Heating: the decision that sets your running costs
If you only want a cool dip in summer, you can leave the heater out entirely, which is why the budget column starts at zero. If you want to use it as a spool, an air source heat pump is the usual choice for a pool this size. Swimply’s 2026 guide puts a pool heat pump at $2,000–$8,000 installed, depending on size and electrics.
A small spa-pack heater won’t do the job on its own. Raising 11,000 litres (2,900 US gallons) by 10°C (18°F) takes about 128kWh of heat, so a 3kW heater would need over 40 hours even with no heat loss. My guide to air source heat pumps explains how to size one.
Electrics
This is the one job you don’t DIY. Pumps, heaters and lights near water need a correctly sized supply, RCD/GFCI protection and bonding, and the rules differ between countries and states. A qualified electrician must design, install and certify it, and local regulations apply.
The extras that can double your cocktail pool cost
- Fencing and barriers. Many US jurisdictions require a pool barrier, and you may need one in the UK if children visit. Bob Vila puts pool fencing at $1,500–$10,000. A lockable safety cover may be accepted in some places instead, so check locally.
- Decking or paving. Often as much as the pool itself if you’re doing a full patio.
- Permits and drawings. HomeAdvisor puts permits at $200–$1,000. Architectural drawings help here, which is one reason my cocktail pool plans include them.
- An engineer’s sign-off on the slab and walls if your site, soil or local authority needs it.
What it costs to run
Running costs depend on how often you heat it, your climate, your tariff, insulation and, above all, whether you use a cover. As a rough guide to heat-up costs: those 128kWh of heat take about 32kWh of electricity from a heat pump working at a COP of around 4 in mild weather. At the UK’s October 2026 price cap of about 26p per kWh, that’s roughly £8.50. At the US 2026 average of about 18 cents per kWh, it’s about $6. The same heat from a plain electric heater costs about four times as much.
Bob Vila puts electricity for a pool at $300–$1,300 a year. Add chemicals, filter media and the odd repair.
[ANDI: add your real-world running cost for a heated cocktail pool or spool here, if you have one from a customer you can share.]Where to save on a DIY cocktail pool (and where not to)
Save on: labour you can do yourself, the finish (render and paint now, tiles later), jets (plumb in the fittings now and add the jet pump later), and spoil (reuse it on site).
Don’t save on: the slab and rebar, the waterproofing, pipe sizes, and the electrics. Those are the bits that are hard or impossible to fix once the pool is full. If your project is unusual, such as a sloping site, a raised pool or a pool with a hot tub alongside, my Tub & Pool Designer Pro architectural CAD and plumbing design service draws the whole thing around your site so you can price it properly before you start.
If you’re still deciding whether to heat it and add jets, read what is a spool? first. And if you’re weighing a cocktail pool against a hot tub, my DIY hot tub cost breakdown uses the same format, so you can compare like for like.
Want the full drawings and shopping list?
My cocktail and plunge pool plans include architectural drawings, imperial and metric dimensions, the plumbing layout and a full shopping list, so you can price your own build accurately before you dig. Over 1,500 customers have used my plans and guides.
FAQ
How much does a cocktail pool cost in 2026?
Professionally installed, most cocktail pools cost somewhere between $20,000 and $50,000 in the US, with published averages of roughly $22,000–$28,000. In the UK, a concrete plunge pool is typically £15,000–£25,000 plus labour. A DIY 12ft x 8ft build is roughly $8,000–$14,000 (£6,000–£10,500) for a budget build, or $17,000–$30,000 (£14,000–£24,000) for a heated, tiled spool with jets, before fencing and paving.
Is a cocktail pool cheaper than a regular pool?
Yes. It needs far less excavation, concrete, finish and water, and smaller equipment. It’s also cheaper to heat.
What is the cheapest way to build a cocktail pool?
Block walls on a reinforced slab, rendered and painted, with simple filtration and no heater. You can add tiles, jets and a heat pump later if you plan for them now.
How much does a spool cost compared with a cocktail pool?
A spool is a heated cocktail pool with hot tub jets, so expect to add the jet pump and pipework, a heat pump and a better cover. On a 12ft x 8ft build that’s typically an extra $4,500–$8,000 (£3,500–£6,000), before any upgrade to tiles or ICF walls.