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A pool set into the ground changes the whole garden
When most people picture a home pool, they picture water sitting level with the patio. Clean edges, a step down into the water and a garden that flows right up to the poolside. That’s the look that makes a pool feel permanent and properly part of the home.
That is exactly what inground swimming pools offer. The pool is built or installed below ground, so the water sits flush with the surrounding paving or decking. It looks neat, feels generous and can last for many years with the right care.
In this guide we’ll explain the main types of in-ground pool, how they’re installed, what to plan for and how to choose the right one for your garden. We’ll keep it simple, practical and focused on UK homes.
Who is this guide for?
It’s for homeowners who are starting to think seriously about a pool. You might be comparing different types, wondering how the build works, or trying to decide whether a pool set into the ground is right for your family and your garden.
What makes inground swimming pools different
The clue is in the name. Instead of standing on top of the ground, the pool sits in a prepared excavation, with its top edge at or near ground level.
The main benefits
- A clean, level finish that blends into the garden
- Easy, safe access via built-in steps and benches
- Plenty of choice in size, shape, depth and colour
- A permanent feature that can add appeal to your home
- Space for heating, lighting, covers and water features
How they compare with above ground pools
Above ground pools stand on the surface, so they are usually quicker to set up and easier to remove. They can be a good short term option. But they tend to look more temporary and offer fewer design choices. Our guide to the above ground pool compares the two in more detail.
A long term decision
Because it becomes part of the landscape, a pool set into the ground is a long term commitment. That’s why it’s worth taking time over the planning stage and choosing a type that suits how you’ll use it.
Our guide to the sunken pool shows how to make an in-ground pool blend into the landscape.
The main types of inground swimming pools
There are several ways to create a pool below ground. Each has its own strengths, and the right choice depends on your garden, your timescale and the look you want.
Concrete and block built pools
These pools are built on site, usually with a concrete or block structure that is then waterproofed and finished with tiles, render or another surface. They offer a lot of design freedom and can be made to almost any shape. On the other hand, the build is usually longer and more involved, with more time spent on site and more weather dependency. HiLife doesn’t build concrete pools, but if you like the idea of a fully bespoke shape, talk to us about whether a one-piece pool could give you the look you’re after.
Liner pools
A liner pool has a supporting structure with a flexible waterproof liner inside. Liners come in lots of colours and patterns and can be replaced when they wear. The liner needs care to avoid punctures and will need replacing over time.
One-piece pools
A one-piece pool is made in a factory as a single shell, then delivered and set into a prepared hole in your garden. This is the type of pool we install at HiLife. Because the shell is made in controlled conditions, the finish is smooth and consistent, and installation is usually much quicker than building on site.
Other options
You may also come across natural pools, steel walled pools and various modular systems. Each has its fans. We’re always happy to talk through how they compare so you can make a confident choice.
Panel systems are another route, and our guide to the steel wall pool explains where they fit in.
For a closer look at the traditional route, our guide to concrete swimming pools explains the build process and how it compares with a one-piece shell.
Another phrase you may hear is carbon reinforcement, and our guide to carbon fibre pools separates the marketing from the substance.
Why one-piece pools are so popular
We might be biased, but there are good reasons why so many families choose a one-piece shell for their garden.
Quicker installation
Most of the work happens in the factory. On site, the main tasks are excavation, a prepared base, setting the shell, connecting the equipment and finishing the surrounds. That usually means less time with diggers in your garden and less disruption for your household.
A smooth, seamless finish
There are no joins in the body of the pool. The smooth surface is comfortable underfoot, kind to swimwear and easier to keep clean than rougher finishes.
Strong and long lasting
A well made shell is designed to be strong and durable. With proper installation and regular servicing, it should give you many years of enjoyment.
Warmer water for longer
Many one-piece shells are designed with insulation in mind, which helps the water hold on to its warmth. In a UK climate, that is a real advantage. Of all the inground swimming pools we are asked about, this is one of the points families value most once they start swimming, because warmer water simply gets used more.
Built-in comfort
Steps, benches and sun ledges can be moulded into the shell, so they feel like a natural part of the pool. Our guide to fibreglass pools explains more about how shells like this are made and how they compare.
You can explore our full range of pools to see the sizes, shapes and colours available.
How an in-ground pool is installed
Every garden is different, but the basic steps are fairly similar for most projects. This is a general outline to help you know what to expect, not a set of building instructions.
- A site visit to look at access, ground conditions, levels and services
- Design and planning, including any permissions or checks needed
- Excavation of the hole, with soil removed or reused in the garden
- Preparing a stable base for the pool to sit on
- Placing the pool and connecting pipework and equipment
- Backfilling and levelling around the pool as it is filled with water
- Laying the coping and surrounding paving or decking
- Commissioning, water balancing and a full handover
Access matters
With a one-piece pool, the shell arrives in one piece. That means there needs to be a way to get it into the garden, often by crane. We’ll check this carefully at the site visit, and it’s rarely a reason to rule a pool out.
Ground conditions
High water tables, clay soils and slopes all need thought. None of these are unusual in the UK, and there are well established ways to handle them. The key is to look at them early.
Living with the build
Any pool project brings some disruption, so it helps to know what to expect. There will be machinery, deliveries and spoil to deal with for a while. A good installer will talk you through the timeline, protect your lawn and driveway where possible, and keep you updated as the work progresses. Letting your neighbours know in advance is always a kind touch, especially on crane day.
What to plan for before you commit
Inground swimming pools are a big investment in your home and garden. A little planning at the start helps make sure you end up with a pool you love.
Size and depth
Think about who will use the pool and how. Families with young children often prefer a larger shallow area. Keen swimmers may want more length. Most home pools are designed for swimming and play rather than diving. A consistent depth where adults can stand comfortably suits most families well.
Position in the garden
Choose a spot that catches the sun and is sheltered from the wind. Keep the pool away from large trees where possible, to reduce leaves and root problems. Think about the view from the house too.
Heating and covers
In the UK, heating and a good cover make a huge difference to how often you swim. A heat pump helps keep the water warm, and a cover keeps the heat in and the debris out. A slatted cover also looks smart and tidy when closed.
Planning and regulations
Many garden pools don’t need planning permission, but it depends on your property and the design. Our guide to swimming pool planning permission explains the basics. It’s always wise to check with your local council before work begins.
Safety
Think about fencing, gates, covers and alarms, especially if you have young children or visiting grandchildren. A lockable cover can add real peace of mind.
Surrounds and landscaping
The area around the water makes a big difference to how the pool looks and feels. Choose coping and paving that are comfortable underfoot and slip resistant when wet. Leave room for loungers, a table and some shade. Planting softens hard edges and adds privacy, but try to choose plants that don’t drop lots of leaves or berries into the water. Lighting the terrace and paths makes the garden feel magical after dark.
If you’re just starting out, our checklist for a new swimming pool walks through each step in order.
Looking after your in-ground pool
Once your pool is in, a simple routine keeps it clean, clear and comfortable. The good news is that modern equipment makes this much easier than it used to be.
Everyday care
- Keep the cover on when the pool isn’t in use
- Let the filtration run as recommended
- Use a robotic cleaner for the floor and walls
- Check water balance regularly
- Skim leaves off the surface when needed
- Keep an eye on the water level, especially in hot, dry weather
Through the seasons
In spring, the pool is opened, cleaned and brought back up to temperature. Through summer, the routine is light and mostly about keeping the water balanced. In autumn, leaves are the main job, so a cover really earns its keep. Over winter, many owners either keep the pool ticking over or have it properly winterised. We can help with seasonal visits if you’d rather leave it to us.
Chemical safety
If you handle pool chemicals, always follow the label, wear gloves and eye protection, never mix products, and add chemical to water rather than water to chemical. Keep swimmers out until the water is balanced, and store chemicals away from children and pets.
Servicing and aftercare
Regular servicing helps keep pumps, heaters and filters running efficiently. At HiLife we offer aftercare, servicing and repairs, so you’ve got support whenever you need it.
Inground swimming pools questions we get asked a lot
How long does it take to install a pool in the ground?
It depends on the site and the type of pool. One-piece pools are usually much quicker to install than pools built on site, and we’ll give you a realistic timeline at the survey stage.
Can I have a pool in a small garden?
Often, yes. There are compact shells and swim spas designed for smaller spaces. We’ll help you find something that fits comfortably.
Do I need a crane for a one-piece pool?
In many cases, yes, as the shell is delivered in one piece. We’ll check access at the site visit and plan the lift carefully.
How deep should my pool be?
That depends on how you’ll use it. Most home pools suit swimming and play rather than diving, and we’ll help you choose a depth that works for your family.
Will I need planning permission?
Many garden pools don’t, but every property is different. Check with your local council before you commit.
How much does a pool cost to run?
It depends on size, heating, cover use and how often you swim. We’ll give you a realistic estimate tailored to your pool.
Choosing inground swimming pools with HiLife
A pool set into the ground can transform how you use your garden. It gives you a beautiful, permanent space to swim, play and relax with family and friends for years to come.
If you’re thinking about a pool, we’d love to help. We’ll visit your garden, listen to your ideas and give you honest advice and a tailored quote.
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.
