Indoor Pools

HomePool TypesIndoor Pools

Indoor Swimming Pool Design, Construction & installation

Installing an indoor pool in the UK is a very attractive option. Here at Compass we have devised several ways to make enjoying your pool all year round as easy as possible. All Compass indoor swimming pools far exceed the building regulations set out in Part L for insulated pools, saving you hundreds of pounds in heating costs a year. Click here to read more about Part L.

Installation into an existing building

If you are looking to install an indoor pool inside an existing building, be aware that this is usually a more expensive option than constructing a new building for your pool. The main reason for this is that your current building will likely need to be underpinned if your pool is going to be positioned within 2m of external or supporting walls. We also install our pool as a whole shell, meaning that we would require access the size of the pool’s cross profile (normally about 4m x 1.8m), although this may not be a problem if you are installing sliding doors at the same time. You will need to work with an external contractor in this instance to provide us with a ready excavated hole and access to get the shell in.

Installation into a new building (built by contractor)


If you are going to construct a new building for the pool, your pool is typically installed first and its housing is built around it. The process normally goes as follows;

  1. Contractor excavates for foundations of building
  2. Contractor pours foundations
  3. Contractor or Compass excavate the pool (to specification)
  4. Compass install pool shell and pipework, fill with water
  5. Compass board over the pool
  6. Contractor constructs building, without decorative finishes but including power
  7. Compass return to fit plant room and coping stones
  8. Compass works with trusted trusted ventilation contractors to install duct work for air control systems and pool heating
  9. Contractor returns to install plasterboard, finishes and flooring


Installation into a Compass Built Building

Compass has worked with one of the UK’s premier outdoor building manufacturers to develop a package designed specifically around our indoor swimming pools. These modern buildings, built from structurally reinforced panels and clad in beautiful cedar, are the perfect accompaniment to a Compass pool. Indoor pool packages start from £120,000 – for more detailed information about the indoor swimming pool cost, give us a call. Your indoor pool construction will be managed exclusively by Compass, or one of our approved local suppliers.

Install a sliding dome cover

There are two options when installing a sliding dome cover; either a full-height dome or a low-profile dome. Either option will help you reduce you running costs, and let you to enjoy your pool all year round; keeping the water temperature contained in winter, and allowing you to simply slide back the cover to swim outdoors in warmer months. Both types of indoor swimming pool design can be integrated or attached to the house. Planning permission on this type of enclosure is not normally required, although you should always check with your local planning office as Areas of Outstanding Natural Beauty and small gardens may be affected.

  • Full Height
  • As it sounds, a cover that you can walk around under.

  • Low Height
  • These are normally head height at one end allowing you get in the pool.

    Frequently asked questions

    The first thing to note about having an indoor pool built is that it will typically be more expensive than an outdoor pool. This is naturally the case because you are effectively having to build a pool at the same time as building an extension to your house (or having serious remodelling work done on the property). The final price can vary enormously, although we have created a useful guide to illustrate the kind of costs that would be involved. However, it vary on factors such as the size of the pool and how it is built.


    The Swimming Pool and Allied Trades Association (SPATA) estimates that energy and chemical costs per day combined to around £7.50. Once again, however, this will depend enormously on the size of the pool, how much you use it, the temperature that you want it to be, and the season of the year. There are ways that you can mitigate the running costs of your pool. For example, during the installation phase of the pool, you might wish to have a solar heating system installed to reduce the amount of energy you reduce to heat your pool.


    In the majority of cases the answer to this question is ‘no’, as long as the building that you are going to house the pool within is freestanding. Since October 2008 outbuildings have been considered to be Permitted Development, and do not require planning permission (within specific terms and conditions). However, in all cases whether you are having an extension built for your property or creating an outbuilding to house your pool, we would recommend speaking to your local council to establish whether you need to apply for specific permission.


    Yes! Just as with an outdoor pool you can have an indoor pool heated to a temperature of your choosing. This is easy to setup during your installation and you can choose from a range of different options from a standard oil or gas heat pump to direct solar heating. Talk through the process with a member of our team and we can help you with details on which kind might be perfect for your home.


    In traditional home swimming pools it is possible for algae to grow and this includes both outdoor and indoor constructions. However, Compass Pools have a number of features that help to prevent the growth of algae. Compass Pools are created in one piece using ceramic composite which is impermeable to bacteria.


    At Compass Pools we can create indoor pools in the size that will be best suited to your home. We offer a range of 9 different models, which are available in a total of 27 different sizes, so it is easy to find something that is perfect for you.


    The size of your indoor pool is completely down to you. It can depend on a large range of factors including the amount of space you have to work with as well as your budget. Remember that you do not necessarily need to have a built pool constructed. For many homeowners, a simple plunge pool is all that they are really looking for, and this gets as much use as a larger pool would.

    If you are interesting in swimming laps but are limited on space, there are options available utilising water jets. These allow you to swim against a constant current, so you can enjoy lengthy swimming sessions even in a relatively small pool.


    To complete a successful indoor pool project it is important to work with a swimming pool designer, an interior designer and an architect. Having professional expertise in all of these areas helps to ensure that your installation runs smoothly.

    Get the Latest Compass Pools Brochure & Price List

    Free Pool Owners eBook by SPATA

    Understand what's involved in pool ownership with this free guide by SPATA (Swimming Pool & Allied Trade Association).

    SPATA provides standards on swimming pool construction, which all Compass pools meet.

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