Swimming Pools installed in the UK from £60,000
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Indoor or Outdoor: How to choose your Pool

Choosing a pool may seem straight forward at first but there are many options to explore such as shape, size, colour, materials and where your pool will be installed.

People may think the distinction between inside and outside pool is a no-brainer based on budget: building a room and ventilation system for an indoor pool will cost double the amount it would for a simple outdoor pool. This isn’t strictly true, and also, if you are more likely to use an indoor pool, you do get more value from it. Below we explore the arguments for investing in both options.


In order to build an indoor pool, you first need to construct a pool room, which is essentially an extension to your house. You then need to install the pool, heating system, and an environmental control system to keep moisture out of the air. If you use the cheapest options, such as wall-mounted dehumidifiers, built-in insulation instead of heating, and a DIY kit, you could probably get your pool cost down to £60,000, including the pool building. Building an outdoor pool costs upwards of £29,000 and it depends on the swimming pool design and extras you opt for.  Going for the cheapest option of a simple pool shell will mean you can’t use it in England between October and March, so you have paid for something you won’t often use. Having a heated outdoor pool will mean you can use it when the weather is mild but an indoor pool will provide a comfortable swimming experience even if there’s a blizzard outside.


Indoor pools are more practical than outdoor as you can use them no matter what the weather or season. They also require less cleaning because they aren’t affected by the elements or debris: a swimming pool filter will get rid of bacteria and dirt, but you’ll still have to pick leaves out of the water if you forget to put the cover on each night. The surface area needed to construct an indoor pool is greater because you have to take into account space for the heating system, a plant room for the environmental system and also a changing room. In a way outdoor pool are more social because you have the whole surrounding garden space where you can entertain. More people can be invited round to share the pool and compatible activities can go alongside it such as sun bathing and barbecues.

Installation Time

It is fairly obvious which type of pool will take longer to install as it requires so much more equipment and a shelter. An indoor pool complete with new building will take up to four months to complete. Although people with existing rooms think installing a pool will take a lot longer, they can actually be just as complicated. Compass pools are manufactured and installed as a single component, so if you have an existing room, you will need to demolish one whole exterior wall in order for the pool to be built in. Outdoor pools take up to a month to install depending on the size, the options you chose to heat it, and the state of the ground in which you are submerging it. If you are installing a pool in summer and can’t wait to use it, an outdoor pool is your quickest option.


You may not think it, but both indoor and outdoor pools require similar amounts of maintenance. You will need to perform maintenance health checks on the components of your indoor pool every few months to ensure they are working efficiently. You will also need to test the water pH and top up chlorine if it has become low. There is also the cleaning of the pool room and changing room area to consider. For an outdoor pool, it needs cleaning once a week with a leaf rake and a vacuum to ensure it is dirt and bacteria free. The filter will need checking to make sure it isn’t blocked. You will also need to test water chemical balances and top these up if necessary. Generally, both types of pool are quite high maintenance, but the outdoor pool requires more manual maintenance tasks, whereas the environmental control unit of an indoor pool does a lot of the work for you.

So there are pros and cons to building both types of pool. Indoor pools are more expensive but a lot more practical. Outdoor pools are cheaper, simpler, but they have limited usage and require a lot of cleaning. A middle ground option which combats a lot of these problems could be a heated outdoor pool or an outdoor pool with a glass roof, which provides shelter and will reduce the need for regular debris cleaning. If you still have questions regarding pool design and installation we would be happy to help so don’t hesitate to contact us. Whatever pool design you choose, make sure you chose Compass Pools for the highest quality ceramic composite swimming pools.

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Building a pool?Don't go without your brochure

To learn more about our services, we will send you a free copy of our latest brochure.