In-Ground Pool: Price, Benefits, and Everything You Need to Know
An in-ground pool is undoubtedly the most popular choice among homeowners in Spain when they’re looking for a permanent, durable, and fully customizable pool. Unlike prefabricated or removable pools, an in-ground pool is built directly into the ground, adapting to any shape, size, and depth the customer desires.
In this article, we’ll explain everything you need to know about in-ground pools: from the updated price ranges for 2026, the factors that influence the cost, the step-by-step construction process, and why reinforced membrane is the best option for waterproofing your in-ground pool.
What Is an In-Ground Pool?
An in-ground pool is one that is built on-site, typically using concrete blocks, shotcrete (gunite), or formwork. Its main characteristic is that it is a permanent part of the property, which means a higher initial investment but also greater long-term value.
The main advantages of an in-ground pool are its complete customization (you can choose the shape, size, depth, location of the steps, underwater lighting, etc.), its exceptional durability (if well-built and maintained, it can last for decades), and the increase in your property’s real estate value.
Prices for In-Ground Pools in Spain in 2026
The price of an in-ground pool in Spain in 2026 varies significantly depending on the dimensions, the materials chosen, and the complexity of the design. Below is a rough price guide:
Small pools (up to 25 m²): Between 8,000 and 15,000 euros. These are the most common in medium-sized gardens or townhouses. They typically measure approximately 5x4 meters or 6x3.5 meters and are 1.2 to 1.5 meters deep.
Medium-sized pools (25 to 50 m²): Between 15,000 and 25,000 euros. Ideal for families with spacious gardens. They allow for the addition of shallower areas for children, Roman steps, and other decorative elements.
Large pools (over 50 m²): Between 25,000 and 50,000 euros or more. These include custom-designed models with irregular shapes, pools with spa areas, waterfalls, or built-in hot tubs.
Factors Affecting the Price of a Custom-Built Pool
Beyond size, there are several factors that can increase or decrease the final cost:
The type of interior finish: The price varies considerably depending on the chosen lining. Ceramic mosaic tiles, pool paint, and reinforced liner have different price ranges, with the reinforced liner offering the best value for money in the long term.
The type of soil: If the ground is rocky or has issues with the water table, earthwork and structural reinforcements can significantly increase the cost of construction.
Water filtration and treatment equipment: A high-quality filtration system, a salt chlorination or ultraviolet light system, and an energy-efficient pump are investments that affect the final price but also lead to long-term savings.
Additional features: Underwater LED lighting, automatic cover systems, heating via heat pump or solar panels, stainless steel ladders, or counter-current systems are extras that can add up to several thousand euros.
The Construction Process for an In-Ground Pool
Building an in-ground pool involves several well-defined steps. First, the necessary municipal permits are obtained (a minor or major building permit, as applicable). Next, the site is staked out and excavated, followed by the construction of the reinforced concrete structure. Once the concrete has set, the waterproofing layers and the chosen interior lining are applied. Finally, the filtration equipment, lighting, and other accessories are installed before the pool is filled.
Why Reinforced Liner Is the Best Lining for In-Ground Pools
Among all the available finishes, reinforced PVC or polyester liner stands out as the option most recommended by industry professionals. Its main advantages include complete waterproofing from day one, resistance to chemicals, ease of repair in case of damage, a wide variety of colors and textures, and a lifespan of 10 to 15 years under normal conditions.
Compared to mosaic tiles (which can have grout issues and require more maintenance) or pool paint (which must be repainted every 2–4 years), reinforced liners offer a perfect balance between a moderate initial cost and low maintenance over the years.
Comparison: In-Ground Pool vs. Prefabricated Pool
Prefabricated fiberglass pools have an initial cost similar to that of small in-ground pools, but they have significant limitations: the maximum size is determined by transportation constraints, the shape cannot be customized, and repairing structural damage can be complex. An in-ground pool, on the other hand, can be adapted to any space and need, and its maintenance is fully standardized.
Return on Investment for an In-Ground Pool
According to data from the Spanish real estate market, an in-ground pool can increase a home’s value by between 5% and 15%, depending on the area and the property’s characteristics. In regions with warm climates such as Andalusia, Murcia, or the Valencian Community, this increase can be even greater, given the intensive use the climate allows for several months a year.
If you’re thinking about building your own in-ground pool and want to ensure a high-quality result with the best waterproofing on the market, contact ArgPiscinas. At argpiscinas.es, you’ll find professionals specializing in the installation of reinforced membrane for in-ground pools throughout Spain. Request your no-obligation quote today.
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