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ToggleHaving a swimming pool at home is a dream for many families: a space for relaxation, fun, and unforgettable gatherings during the warmer months. However, when it comes to taking the plunge, one of the most frequent questions arises: is it better to opt for a built-in pool or a prefabricated one?
At Reindesa Piscines , with decades of experience in the design, construction, and installation of aquatic spaces, we know that there is no single “best” option in absolute terms . The key is finding the type of pool that best suits your land, your timeline, your aesthetic preferences, and your lifestyle.
Next, we’ll review the major benefits of both options and help you discover which one is perfect for you.
1. Custom-built swimming pools: unleash your imagination without limits
Built-in swimming pools (usually constructed of gunite concrete) are the classic choice par excellence when looking for a fully customized project integrated into the architecture of the space.

Main benefits of in-ground swimming pools:
Complete customization and bespoke design: there are no predetermined shapes, depths, or dimensions. You can design anything from a minimalist rectangular pool to organic shapes, including beach areas, integrated spas, submerged benches, or waterfalls.
Maximum durability and resistance: concrete is an extraordinarily robust material that perfectly withstands any type of terrain, earth pressure and extreme weather conditions.
Wide variety of coverings and finishes: allows you to play with a multitude of aesthetic materials: mosaic tiles in countless colors, natural stone, large format porcelain or microcement, achieving the exact water tone you’ve always wanted.
Adaptability to complex terrain: they can be built on plots with steep slopes, small spaces or complicated access where it is not possible to introduce pre-formed structures.
Increased property value: a built-in swimming pool integrated into the landscape adds significant value to the property.
Most popular types of in-ground swimming pools:
Gunite (sprayed) concrete swimming pools: the most widespread technique due to its optimal watertightness and structural resistance.
Infinity pools: where the water overflows the coping line or seems to merge with the horizon, creating a spectacular visual effect.
Built-in pools with a mirror system (Bord-Miroir): the water is exactly at ground level, creating a sober and elegant aesthetic.
2. Prefabricated swimming pools: speed, comfort and maximum usability
Prefabricated swimming pools, especially those made of fiberglass-reinforced polyester, have evolved enormously in design and technology, becoming an extremely attractive and practical option.
Main benefits of prefabricated swimming pools:
Quick and clean installation: Because it’s a pre-formed pool that arrives ready from the factory, installation time in your garden is drastically reduced. You can be enjoying your bath in just a few days.
Soft and pleasant surface to the touch: the finish of the cup (gelcoat) offers a smooth, non-slip and seamless texture, very comfortable for the feet and skin.
Simplified maintenance and cleaning: Because there are no mortar joints, it is more difficult for algae or dirt to accumulate, which reduces the consumption of chemical products and facilitates daily cleaning.
Excellent watertightness and flexibility: the quality polyester structures absorb small ground settlements very well without cracking or leaking.
Great value for money and fixed budget: it is a very efficient solution with controlled costs from the outset.

Types of prefabricated swimming pools:
Polyester and fiberglass pools: the most popular due to their excellent durability, smoothness and quick assembly.
Monoblock pools with integrated stairs and benches: ergonomically optimized designs with built-in rest areas, hydromassage and convenient access.
Which pool is best suited to your house?
A custom-built swimming pool is perfect for you if…
Are you looking for an exclusive design that is 100% adapted to specific measurements or shapes?
You have a plot of land with special characteristics or uneven terrain.
You especially value the freedom in the choice of cladding materials (porcelain, mosaic, etc.).
You don’t have an immediate urgency and prefer to prioritize the custom design project.
A prefabricated pool is perfect for you if…
You want to enjoy your pool in the shortest possible time and with a quick construction project at home.
You value the convenience of a smooth, easy-to-clean surface.
You’re looking for a proven, ergonomic model with an optimal and fixed budget.
You want a clean installation with the maximum guarantee of watertightness.
M3pool: our specialist brand in polyester swimming pools
At Reindesa Piscines, we have in-depth knowledge of the sector and always strive to offer the best solution for every home. That’s why, in addition to our traditional construction projects, we have our own specialized brand: M3pool .
At M3pool, we offer a carefully curated selection of prefabricated polyester pools , manufactured to the highest standards of quality, durability, and elegance. Our modern designs feature integrated steps, relaxation areas, and impeccable finishes, all designed to suit various garden sizes.
We invite you to visit the M3pool website to explore our complete catalog of models, check measurements and discover which one best suits your space.
Unsure which one to choose? At Reindesa Piscines we can advise you.
Whether you dream of a custom-built pool designed down to the last detail or prefer the speed and convenience of an M3pool prefabricated pool, our technical team is available to advise you without obligation. We will study your land and your needs to make the perfect aquatic project a reality for you.
Get in touch with us and start designing your ideal summer corner!