How Much Does an Underground Pool

Thursday, March 29th 2018. | Swimming Pools

How much does an underground pool cost? All information on costs, maintenance, permits, filtration systems and preliminary evaluations.

A swimming pool in the garden represents the entrance ticket to the paradise on the hottest and busiest days of summer. If, after a first moment of indecision in which you did not know whether to take an underground pool or an above ground swimming pool, you opted for the most permanent solution, you just have to make the latest assessments before purchase. Yes, as opposed to an above ground pool, the underground pool is seen as a real permanent solution.

The cost of purchase and installation is an initial investment that will give you a lifetime benefit. Of course, the underground pool, just like your home, needs regular maintenance. In This article we will not omit anything.

How much does an underground pool

The costs of an underground swimming pool fluctuate greatly according to the installation characteristics and the model chosen. The cost of an inground swimming pool is determined by several factors, such as:

The size

For family use, a 4 × 8-size swimming pool with a depth of 120 to 150 cm is sufficient.

The form

The cheaper underground pool has rectangular shape, the rectangular shape is cheaper even in the maintenance costs because much easier to clean and to cover. Those who want more aesthetic impact can choose an oval, eight-shaped or decorative edge swimming pool.

The material

The structure of the pool can be made with more or less valuable materials. Even the underground fiberglass pools differ from each other because they can exploit mixed technology or simple reinforced concrete.


The inground pool can have raised edge to be flush with the ground. In Both cases it is necessary to consider the costs for the construction of the perimeter flooring at the same swimming pool.

The filter system

The pulsating heart of an inground pool consists of the water filtration and recycling system. The filtration system retains the impurities present and purifies the water. The recycling system, on the other hand, conveys water from the pool to the filtration system. They work in synergy and to ensure that the water in the pool is always clean, you have to choose a good filter group. On the market there are low-voltage dipping filters (for small underground pools) and more sophisticated filtration groups that work with a technology dubbed “sand”.


Depending on the excavation and the type of soil in the garden, the costs of building an underground swimming pool can increase or decrease. The soil must not be landfill, rocky or landslide, in this case it is necessary to arrange with work of adjustment to make the ground of the excavation stable and compact.