How long will the construction take?

The construction of an in-ground pool is greatly affected by the groundworks process, due to the quality of your soil and the ease of access. You also need to take into account the preparation work that needs to be completed – whether that be clearing your garden or building the foundations of a new outbuilding. Once the ground has been prepared, it actually takes very little time for us to install the pool. This is because our ceramic-fibreglass shells arrive prefabricated and in one-piece, meaning they simply need to be lowered into place. For a typical in-ground pool, we estimate the process takes between 4 and 6 weeks.

What size pools are available?

At Compass Pools, our ceramic composite pools are prefabricated to order and are available in a range of styles and sizes. You needn't worry about having a limited choice – we have 9 different models available in 27 sizes, including plunge pools and lap pools. We also offer a large selection of options to customise your swimming pool, including a range of features such as down lighting, waterfalls, deck jets and more.

ADVANTAGES: Lower Chlorine Levels: Saltwater pools utilise a salt chlorinator or salt cell to generate chlorine, but the chlorine level is typically lower than in traditional chlorine pools. This results in softer water that is often gentler on the skin and eyes, providing a more comfortable swimming experience. Reduced Maintenance: With a saltwater pool, there's no need to add chlorine regularly, as the salt cell produces chlorine as needed. This can lead to fewer fluctuations in chlorine levels, simplifying pool maintenance and reducing the need for frequent chemical adjustments. Cost-Effectiveness: Despite higher upfront costs for installation, saltwater pools can be more cost-effective in the long run. You'll save money over time as there's no need to continuously purchase, transport, or store chlorine, resulting in lower ongoing maintenance expenses. Minimal Chemical Usage: Saltwater pools generally require fewer additional chemicals such as algaecides or shock treatments, contributing to a more environmentally friendly and sustainable pool environment. DISADVANTAGES: Higher Initial Cost: The installation of a saltwater system can be more expensive compared to traditional chlorine systems due to the need for a salt chlorinator or salt cell. Increased Electrical Consumption: Salt cells require electricity to convert salt into chlorine, leading to additional electrical costs over time. Salt Corrosion: The presence of salt in the pool water can cause corrosion on certain pool fixtures, equipment, or types of stone decking, potentially requiring costly repairs or replacements. Complexity: Maintaining optimal salt levels and ensuring the proper functioning of the salt cell can be challenging. If the salt cell malfunctions or if salt levels are not adequately maintained, there may be insufficient chlorine production, leading to potential pool problems such as algae growth or water quality issues. Regular monitoring and maintenance are essential to address these challenges and ensure the effective operation of a saltwater pool.

ADVANTAGES: Lower Initial Cost: Traditional chlorine pools generally have a lower upfront cost compared to saltwater systems, making them more budget-friendly for initial setup. Simplicity: Many pool professionals and owners are more familiar with maintaining chlorine pools, as they have been the standard for many years. This familiarity can make troubleshooting and maintenance tasks more straightforward. Fast-Acting: Chlorine has the ability to act quickly to resolve water problems, such as algae growth or bacterial contamination, providing rapid and effective water treatment. DISADVANTAGES: Regular Maintenance: Chlorine levels in traditional pools need to be checked and adjusted more frequently to maintain optimal water quality. This requires regular testing and chemical additions, increasing the ongoing maintenance workload. Cost of Chlorine: Over the lifespan of the pool, continual purchases of chlorine are necessary to maintain appropriate chlorine levels. The cost of chlorine can accumulate over time, contributing to higher long-term maintenance expenses. Potential for Irritation: Higher chlorine levels in traditional pools can cause skin, eye, and hair irritation for some individuals, especially those with sensitive skin or allergies. This can result in discomfort or allergic reactions for swimmers. Odour and Taste: Chlorine pools can sometimes have a distinctive smell and taste, which some people may find unpleasant or off-putting. This odour and taste can be particularly noticeable in indoor pools or pools with inadequate ventilation.

ADVANTAGES: Chemical-Free Swimming Experience: Natural pools use biological filters and aquatic plants to keep the water clean, eliminating the need for chlorine or salt. This provides a more eco-friendly and chemical-free swimming experience, which can be beneficial for individuals with sensitivities or allergies to pool chemicals. Blends Seamlessly with Environment: Natural pools blend harmoniously with their surroundings, resembling natural bodies of water like ponds or lakes. They enhance the aesthetic appeal of outdoor spaces and create a tranquil and inviting atmosphere for swimmers and spectators alike. Low Maintenance: Once established, natural pools typically require lower maintenance compared to traditional chlorine or saltwater pools. The self-regulating ecosystem helps to maintain water quality naturally, reducing the need for frequent chemical adjustments and cleaning. DISADVANTAGES: Initial Cost: The initial installation cost of a natural pool can be higher than that of traditional saltwater or chlorine pools. Building a natural pool requires specialized construction techniques and materials to create the ecosystem, which can increase upfront expenses. Limited Temperature Control: Natural pools rely on natural processes for temperature regulation, which may result in cooler water temperatures compared to heated saltwater or chlorine pools. Swimmers who prefer warmer water may find natural pools less comfortable, especially in colder climates or during cooler seasons. Potential for Algae Growth: Without chemical treatments like chlorine or salt, natural pools may be more prone to algae growth under certain conditions. Maintaining the balance of the ecosystem and water chemistry is essential to prevent algae blooms and maintain water clarity. Complex Design and Maintenance: Designing and maintaining a natural pool requires specialised knowledge and expertise in aquatic ecology and landscaping. Proper planning and ongoing management are necessary to ensure the health and stability of the ecosystem, which may involve periodic adjustments and interventions to address issues such as algae growth or water clarity.

Modern family home with a contemporary garden and a clear turquoise swimming pool surrounded by decking and lush greenery.

Inground Swimming Pools

Understand the differences between inground and above ground pools.

Get in Touch

We Are Experts in In-Ground Pool Installation

If you have always dreamed of having an in-ground swimming pool installed, Compass Pools can help make it a reality. We are a dedicated team of swimming pool specialists who have over 30 years’ experience designing and installing stunning pools in homes throughout the UK. We have constructed a wide range of indoor and outdoor pools and would be delighted to bring our expertise to your home. To find out more, please don’t hesitate to contact us today.

Read Our Latest Reviews

    
 
 
       Posted on Google  
   
   C Burroughs 
 02/06/2026
 
 
 Trustindex verifies that the original source of the review is Google. This process has been so easy from start to finish. To begin with, we wanted to see the pool we had chosen in situ. This was arranged very quickly, and it was exactly what we were looking for. Ordering was also straightforward, and everything from that point through to delivery went exactly as expected. Once the pool was installed, we spent a few hours going through all the maintenance requirements (despite being in the middle of a building site). It was very thorough, and I’d highly recommend anyone doing this to take videos we’ve found them to be a real lifesaver. When we struggled on our own, Penny was fantastic even messaging me back on a Sunday when I was completely floundering. Now it’s all done, we feel confident about what we need to do and we absolutely love our pool. We just need the rest of the house finished before we can start swimming, but it’s there ready and waiting, along with the bottle of champagne they kindly left us as a gift. Thank you both so much we love it. Claire and Andy x
  
 
      Posted on Google  
   
   Gregg Cain 
 19/05/2026
 
 
 Trustindex verifies that the original source of the review is Google. I cannot recommend Waterstream highly enough. Mike was a pleasure to work with, from initial scoping despite all our questions being pool novices, through to a very clear handover, always responsive and helpful. Billy and the installation team were total pros, always working hard, in good spirits, kept to the expected timeline, keeping us updated on all the progress, and maintaining the site in good order. Simon’s sign off was meticulous, the attention to detail by all involved having been of the highest standard. The resulting pool (Aqua Nova 84, with a turbine which is fantastic), is first-class and will be enjoyed by family and friends for many years to come. Thanks to the entire team!
  
 
      Posted on Google  
   
   Kelly Elderkin 
 18/05/2026
 
 
 Trustindex verifies that the original source of the review is Google. Compass pools were amazing from start to finish, great customer service and made what was a very large project go extremely smoothly.  After care had also been great.
  
 
      Posted on Google  
   
   Sarah Parkin 
 02/05/2026
 
 
 Trustindex verifies that the original source of the review is Google. We had a pool installed by Compass Pools earlier this year. It was a fantastic experience from start to finish. From Nick talking me through the options and answering my multiple dumb questions, Billy, Mark and Kyle that did our installation over the wettest winter in memory and then Ryan who talked me through resetting the cover open and close mechanism when it got stuck after a power cut. A really professional team and more importantly a brilliant product. Thanks guys!
  
 
      Posted on Google  
   
   Charlie Dick 
 28/04/2026
 
 
 Trustindex verifies that the original source of the review is Google. Brilliant service . Communication was clear and prompt. Mike and Elliot were very  helpful throughout.  Vitali and his team made sure the process went smoothly. Recommend highly, pleasure to work with the  water stream team.
  
 
      Posted on Google  
   
   SStew 
 25/04/2026
 
 
 Trustindex verifies that the original source of the review is Google. Yesterday our Compass pool was officially handed over to us & we couldn't be happier. Tracy has been phenomenal throughout the whole process, answering all of our many questions & reassuring us - it's a huge decision to make! The biggest concern we had was getting the pool off our lane, down the drive and over the house.  Elliot had this well under control. The delivery drivers & the crane operator were unbelievable and even the neighbours enjoyed watching the process. Thank you to all at Compass, especially Tracy.
  
 
      Posted on Google  
   
   Charles Berkeley 
 21/04/2026
 
 
 Trustindex verifies that the original source of the review is Google. very professional team  in all ways from the initial consultation to installation to after care .We were very impressed in our discussions on choosing the style of pool and colours and any extras wanted.  The installation team were friendly and professional and the job was done well. Mike Tucker gave us details for aftercare and explained the heating and cleaning process for the pool well.
  
 
      Posted on Google  
   
   Katie Kaufman 
 17/04/2026
 
 
 Trustindex verifies that the original source of the review is Google. We are so excited we now have a water stream pool installed. From start to finish they were so helpful and always accessible. Particularly sheila who would always respond quickly and go above and beyond with anything we needed or any questions we had. We are happy with how everything works and the kids are absolutely loving it. Easy to use and maintain.
  
 
      Posted on Google  
   
   Adam Moss 
 15/04/2026
 
 
 Trustindex verifies that the original source of the review is Google. All round a great service from a very helpful team. Very happy with our new pool!!
  
 
      Posted on Google  
   
   Jonathan McMaster 
 01/04/2026
 
 
 Trustindex verifies that the original source of the review is Google. I needed a little help with an issue with the pool and Ryan guided me throughout. I have little to no experience with pool and Ryan was really helpful and patient with me. I really appreciated then help. Many thanks Ryan

Inground Pools: A Fantastic Investment

While many people may fantasise about having their own swimming pool, a large number of homeowners think that it is too impractical and the cost is too high to design their own inground pool. However, we are happy to tell you that that ideology is wrong: in-ground swimming pools are actually a fantastic investment. The cost is lower than you think, and installing your own pool could actually add significant value to your property. Plus, just think of all the quality time you can enjoy, and the memories you will make, with friends and family gathered around your beautiful pool.

How We Install Your Inground Pool

We understand how important each different facet of the construction process is, so we offer a bespoke design and installation service. This allows us to provide you with an in-ground pool that is perfectly suited to your requirements.

The first step in the process is the excavation of the pool site. This is carried out by experienced groundwork contractors who have many years of expertise in all aspects of structural and stabilisation work. Once the hole has been excavated, your one-piece ceramic pool will be delivered to the site and lowered into place.

Next, we follow this up by installing the plumbing and wiring from the plant room. We then add any additional features you would like inside the pool, including the lighting, heating and filtration system. Finally, we build the area surrounding the pool, dealing with everything from tiling to paving to decking.

FAQS

Frequently Asked Questions

How much does an In-ground pool cost?

The price of your swimming pool will vary on a number of factors. These include its size, it’s location (either indoors or outdoors) and the amount of labour involved to install it. With an in-ground pool, we estimate that the price will be somewhere between £50,000 and £120,000.

To obtain a more accurate figure for your specific requirements, we recommend talking to a member of our team who will be able to give you a quote for the work needed. Alternatively, pop in and visit us at our showroom in West Sussex where we will happily go through everything with you.

Are In-ground pools easier to install that other pool types?

In-ground pools are more complex to install than above-ground styles due to the excavation and groundworks. The quality of the soil, draining requirements and access to the hole all vary from location to location which can make it difficult to know how straightforward or problematic an installation might be. For more detailed information, take a look at our pool installation page.

How long does construction take?

This can vary on a huge range of factors, including the work that you need to do on your property itself to prepare for the installation. The actual construction of the physical pool takes very little time as our one-piece pools are simply craned into a previously excavated hole, rather than having to go through the lengthy process of adding concrete and tiles.

Will you work with our existing builders?

Creating a high-quality pool area requires an experienced designer, as well as an interior designer and architect if the pool is going indoors. If you have already arranged a building team to carry out the work, we are more than happy to work alongside them to deliver the best possible result. However, the earlier we are brought on board, the easier this process will be.

Can I have a pool that’s partially buried?

If you are looking for a pool that is only partly built into the ground, you may be thinking of an infinity pool. These are commonly installed on hillsides or slopes, and often require partial excavation. We do offer an infinity pool installation service here at Compass Pools. Contact our team to discuss what you are looking and we can provide you with a free quote for the work.

Do I need planning permission for an In-ground pool?

Outdoor pools are generally considered ‘garden projects’ so don’t usually require planning permission. However, don’t take that as gospel as some areas – such as listed buildings, national parks and conservation areas – often have stricter rules. It’s always worth double-checking with your local planning authority before starting a pool project.

Indoor pools have slightly different regulations, and planning permission mainly depends on whether you are building an extension onto your home to house the pool, or whether it’s going into a pre-existing room. Freestanding buildings of certain dimensions fall under Permitted Development, but again, it’s worth checking with your local authority.

How much maintenance do swimming pools require?

Conventional pools need to be maintained through the use of disinfectant chemicals, surface skimming and filter cleansing. How much maintenance work you need to carry out will vary depending on the pool’s size, usage, location and water type. For example, outdoor pools require more frequent skimming than indoor pools in order to keep the water free of leaves and other falling debris.

The ceramic fibreglass we use to build our pools with actually makes them more hygienic than concrete pools, because the material is impenetrable to bacteria.

Which chemicals do I need for my swimming pool?

In addition to a filter, conventional pools primarily rely on chlorine (available in a liquid, powder or tablet form) to disinfect the water. You can also use various additives in your pool, such as chlorine stabilisers, algaecides and shock treatments, to make sure the water is balanced and safe to swim in.

The quantity of chemicals you require will vary on the pool’s specifications – its size, location and usage. For any help or assistance, our specialists can guide you on which chemicals you will need.

How can I keep my family safe around an In-Ground Pool?

Safety is of paramount importance when it comes to swimming pools. Installing a fence around the perimeter of the pool is generally recommended, as is fitting a lockable gate to prevent children and pets getting into the area unsupervised. You could also invest in a solid pool cover, as these will give you the opportunity to reclaim the surface area when the pool is not in use.

Do Compass pools offer In-ground pool installations near me?

At Compass Pools, we have a nationwide installation network so we can fit contemporary ceramic pools at your home or business wherever you’re based. Our headquarters and showroom are based in Sussex, but we work all across the south coast, in and around London, up to Wales, the Midlands, East Anglia and Scotland.

To see more locations and to submit any enquiries, questions or queries you might have, visit our contact page.

Carbon Ceramic Technology

Compass Pools are constructed using Carbon Fibre & Ceramic for Stength and Insulation
20 Year Warranty

Supported by the best guarantees in the industry, Compass Pools Carbon Ceramic Shells have a 20 Year Warranty
Green Swimming

Compass Pools are the most energy efficient pool construction type, with ceramic insulators and variable speed pumps

Testimonials

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Jane Styslinger – Hampshire
"We couldn't be happier with the service we received from all the team. Right from Sheila in sales on day 1 through to John and Glenn on site. Now we have a pool the boys are in it in all weather and it gets them off the Xbox! They have used the pool every day since May-be it after school or early in the morning and we both use it to exercise whenever we have a spare half an hour.That alone makes it more than worth it."
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David Clifford – Wales
"There are two aspects to the company, the people and the product. I can't fault either of them. The people are friendly, expert and very helpful. Theirs is a premium product but worth it. The build quality is first rate and the operating system options can give you a package as sophisticated as you wish."
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Tim Wilkinson
"Compass were a dream to deal with. They visited and prepared a very detailed quote with full details/breakdown. A start date was agreed on, they turned up on the agreed day and finished the install ahead of schedule. The install team were a pleasure to work with and had a good eye for detail / getting things right / keeping the site tidy. I would not hesitate to recommend Compass."
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Sophie Bardrick
"Compass provided an excellent sales service with James Poore giving a full explanation of the pool construction and installation process. Compass delivered each stage on time and installed the pool quickly and efficiently under the direction of Alex. All team members were knowledgable and professional. Would highly recommend Compass Pools to anyone thinking of getting a pool."