Share this story, choose your platform!
Choosing how your pool is made is a big early decision
When most people picture a swimming pool, they imagine the water, the sunshine and the lazy weekends. Far fewer think about what sits beneath the tiles. Yet the way a pool is constructed shapes almost everything else. It affects how long the build takes, how the finish looks, how the pool feels to swim in and how much looking after it needs over the years.
For a long time, concrete swimming pools were the default choice for anyone wanting a permanent pool in the ground. They are still popular today, and for good reason. They can be made in almost any shape or size, and a well built one can last for decades.
But they are not the only option any more. Modern one-piece pools have changed the picture for many UK homeowners, especially those who want a quicker, simpler installation.
In this guide we’ll explain how concrete and block built pools work, what they do well, what to think about before choosing one, and how a one-piece pool compares. We’ll keep it fair and plain, so you can make the choice that suits your garden and your family.
What concrete swimming pools actually are
The phrase covers a few different construction methods. They all share one idea. The shell of the pool is built on site, by hand, from concrete or masonry.
Sprayed concrete
In this approach, a steel reinforcement cage is shaped inside the excavated hole. Concrete is then sprayed at high pressure onto the steel to form the floor and walls. The result is a solid, seamless shell that can follow curves and unusual shapes with ease.
Block built pools
Many UK pools are made from hollow concrete blocks. The blocks are laid on a reinforced concrete base, then filled with concrete and steel to make them strong. You may hear these called block swimming pools. Some older pools were built with brick, which is why people sometimes search for a brick swimming pool too.
Poured concrete
Here, timber or steel formwork creates a mould for the walls. Concrete is poured in and left to cure before the formwork comes away. It’s a method borrowed from general construction and is used on some larger or more complex projects.
The finish on top
A concrete shell is not watertight or comfortable to touch on its own. So it needs a finish. Common choices include:
- Ceramic or glass mosaic tiles
- A smooth render or plaster finish
- A flexible membrane or liner fitted over the shell
- Specialist coatings designed for pool water
Each finish has its own look, feel and maintenance routine. Tiles are the most traditional and can look wonderful for many years.
Concrete swimming pools offer real design freedom
The biggest strength of a site built pool is flexibility. Because the shell is formed by hand, the designer is not limited to a set range of shapes.
Almost any shape or size
Want a long lap lane that follows a boundary wall? An unusual curve around an old tree? A pool that sits within a basement or on a tricky plot? A hand built shell can usually be adapted to fit. That’s why many large bespoke and architectural pools are made this way.
Features built into the structure
It’s easier to build certain features directly into the walls and floor. Think of wide sun ledges, bench seating, vanishing edges or deep diving areas. These can all be shaped as part of the main structure.
A very long life when well built
A properly engineered and well maintained concrete pool can last a very long time. The shell itself is strong. The surface finish will need attention now and then, but the structure underneath can serve a family for generations.
A classic look
There’s something timeless about a fully tiled pool. Many people love the traditional feel, and it can suit period homes and formal gardens beautifully.
Room for creative finishes
Because the surface is applied by hand, you can choose from a huge palette of tiles and colours. Some owners pick deep blues for a lagoon feel. Others choose pale greys or sandy tones for a softer, more natural look. Borders, patterns and even mosaics on the floor are all possible.
Building one takes time, skill and patience
Concrete swimming pools are a significant construction project. It helps to go in with clear expectations about what the process involves.
A longer build
Every stage happens on site. The dig, the reinforcement, the concrete work, the curing time and the finishing all follow one after another. Concrete needs time to cure properly before tiles or render can go on, and the weather can slow things down. It’s common for a hand built pool to take a good few months from start to finish.
More disruption at home
A longer build usually means more time with machinery, deliveries, noise and mess in the garden. Access matters too. Many trades may need to come and go over several weeks.
It’s worth thinking about how the garden will be used during that time. If you have young children, pets or plans for summer gatherings, a long build can feel like a big commitment. Good planning and clear communication with your builder make a real difference.
Quality depends on the team
Because the pool is made by hand, the finished result relies heavily on the skill of the builder. Good contractors do excellent work. But it’s worth asking about experience, guarantees and past projects before you commit.
Care over the years
Tiled and rendered surfaces can need occasional work. Grout may need repairing, render can need refreshing, and coatings may need renewing after a number of years. Porous surfaces can also give algae somewhere to cling if the water balance slips. None of this is unusual. It’s simply part of owning this type of pool.
How a one-piece pool compares with concrete swimming pools
At HiLife we install luxury one-piece pools. We don’t build hand made concrete shells. But we’re often asked how the two compare, so here’s an honest view.
A one-piece pool is made off site in a controlled factory setting. It arrives as a single finished shell, ready to be lowered into a prepared excavation. You can read more about how they work in our guide to the one-piece swimming pool.
Speed of installation
Because the shell is made in advance, the time spent building in your garden is much shorter. The site work focuses on the excavation, the base, the lift into place, backfilling and connecting the equipment. For many families, that means less disruption and a pool ready to enjoy much sooner.
Consistent quality
A factory made shell is produced to the same standard every time. The finish is smooth, non porous and designed specifically for pool water. There’s no curing time on site and less that depends on the weather.
Easier everyday care
A smooth, non porous surface gives algae less to hold on to. That can make cleaning and water care simpler. There’s no grout to maintain and no render to refresh.
Comfort underfoot
Many people find the surface of a one-piece pool pleasantly smooth and warm to the touch, which is lovely for children and anyone who likes to sit on the steps.
Where concrete may still suit better
To be fair, some projects really do call for a hand built shell. Very large pools, highly unusual shapes, or pools that must fit an exact architectural space can be better suited to a concrete pool. One-piece pools come in set shapes and sizes, although the range is wide and there are plenty of options for most gardens.
Things to weigh up before you decide
Whichever route you choose, a few questions will help you make a confident decision.
How much time do you have?
If you want to be swimming by next summer, the build time matters. Ask any installer for a realistic timeline for your particular garden, including preparation work.
How important is a unique shape?
If your heart is set on a truly one-off design, a hand built pool may be the answer. If you want a beautiful, practical pool in a proven shape, a one-piece option could suit you well. Our overview of types of swimming pools sets out the wider choices.
What will day to day care look like?
Think about who will look after the pool and how much time they have. Surfaces, filtration, covers and automation all affect the weekly routine.
What does your site allow?
Access for machinery, ground conditions, slopes and drainage all play a part. A site survey is the best way to understand what’s possible. It’s also sensible to check with your local council about planning and with building control where relevant, as rules vary.
What’s your budget?
Costs vary widely depending on size, finish, site conditions, heating and extras. Rather than rely on rough figures, it’s best to get a tailored quote. Our guide to swimming pool cost explains what shapes the overall price.
Looking after any pool well
Whatever it’s made of, a pool stays at its best with regular, sensible care.
- Keep the water balanced and test it regularly.
- Run the filtration for enough time each day.
- Skim leaves and brush the walls and floor.
- Use a cover to keep debris out and warmth in.
- Book a professional service at least once a year.
If you use pool chemicals, always follow the label and wear gloves and eye protection. Never mix chemicals together, and always add chemical to water, never water to chemical. Keep swimmers out until the water is balanced, and store everything away from children and pets.
Our team provides aftercare, servicing and repairs for the one-piece pools we install, so you’re never on your own. If you own a different type of pool and need advice, talk to us about what help might be available.
Concrete swimming pools questions we get asked a lot
How long does a concrete pool last?
A well built and well maintained shell can last for many decades. The surface finish will usually need renewing at some point during that time.
Are block swimming pools the same as concrete ones?
They’re closely related. Block pools use concrete blocks filled with concrete and steel, while other methods spray or pour concrete. Both are hand built on site.
Is a one-piece pool as strong?
Yes. A good one-piece shell is engineered to be strong and durable, and it’s installed on a properly prepared base with careful backfilling.
Can you convert an old concrete pool to a one-piece pool?
It depends on the existing pool and the site. Talk to us about your situation and we can look at what might be possible.
Do hand built pools need more maintenance?
They can need a little more surface care over time, such as grout or render repairs. Water care routines are broadly similar for all pools.
Do I need planning permission?
Many garden pools fall under permitted development, but not all. Always check with your local council before you start.
Choosing between concrete swimming pools and a one-piece pool
There’s no single right answer. Hand built pools give you almost unlimited design freedom and a classic look, and they can last a lifetime when built well. A one-piece pool offers a faster, cleaner installation, a smooth low maintenance surface and consistent factory quality.
The best choice depends on your garden, your timescale, your plans for the pool and how much time you want to spend looking after it. If you’d like to see what a one-piece pool could look like at your home, explore our full range of pools and see which shapes and sizes catch your eye.
We’re always happy to talk it through, answer questions and give you an honest view of what would work best for you.
Call us on 01483 323 676 or email hello@hilifepools.co.uk for a friendly, no-pressure chat, or get in touch online and we’ll come back to you.
