The Great Debate: Concrete vs. Liner Pools (And Why Plastic Doesn’t Cut It Under the Spanish Sun)

Let’s be brutally honest for a moment: comparing a custom concrete pool to a vinyl liner pool is a bit like comparing a tailored suit to a one-size-fits-all poncho. Sure, they both technically cover you, but only one looks good doing it.

Here in the Costa Blanca, the undisputed king of new in-ground pool installations is concrete (gunite). Lined pools are somewhat of a rarity in this region, and for very good reason. At EdenPool, we are exclusively dedicated to designing, building, and repairing concrete pools. We refuse to compromise on structural integrity.

If you are on the fence about which direction to take your backyard oasis, here is why a concrete pool is the only logical investment for your home.

1. Design Flexibility: The Architectural Dream
When you opt for a vinyl liner, you are essentially buying a prefabricated shape. Your design choices are limited by manufacturing constraints, meaning your pool is dictated by a catalogue, not your imagination.

With concrete, the only actual limits are your budget and the laws of physics. Because gunite is sprayed onto a custom steel framework, we can engineer literally anything. Want zero-entry beach slopes? Done. Integrated hot tubs, custom benches, infinity edges, and complex geometric shapes? Not a problem.

Furthermore, concrete allows for premium finishes—like the iridescent glass mosaics or large-format porcelain tiles we often recommend—giving you total control over the water’s colour and the pool’s tactile feel. You aren’t just digging a hole; you are integrating a permanent architectural feature into your landscape.

2. The “Budget” Illusion
Let’s address the elephant in the room: yes, the initial installation cost of a concrete pool is typically 25% to 30% higher than a lined pool.

But a lined pool is a masterclass in false economy. It is essentially a subscription service for future headaches.

The Sun Tax: The intense UV radiation of Southern Spain is merciless on vinyl. The section of the liner that sits just above the water level takes a daily beating from direct sunlight. Before long, it fades, cracks, and makes the entire pool look dated and neglected.
The Replacement Cycle: A lined pool requires a liner replacement every 7 to 8 years, and a complete structural overhaul every 10 to 15 years.
The Hidden Leaks: The plastic components behind a liner are notoriously difficult to access when (not if) they leak.
Conversely, a properly engineered concrete shell has a virtually indefinite lifespan. You pay for it once, and your ongoing maintenance costs plummet.

3. The Environmental Reality
We rarely think about what happens when a pool reaches the end of its life, but we should. When a vinyl liner inevitably fails, you are forced to rip out a massive, non-biodegradable sheet of sun-baked plastic and send it straight to a landfill. Doing this every decade is an environmental nightmare.

A concrete pool is a solid, permanent structure. In the incredibly rare event that it needs to be demolished decades down the line, the concrete and steel can be completely recycled and repurposed for new construction.

4. Property Value: The Ultimate ROI
When house hunting, buyers perceive a well-maintained concrete swimming pool as a luxury asset. Real estate data consistently shows that homes with custom concrete pools not only command a higher asking price but also sell significantly faster. We regularly partner with home builders to construct pools for high-end spec homes precisely because of this guaranteed net-positive return on investment.

A lined pool, unfortunately, does not command the same respect. Because of its commonplace nature, high depreciation costs, and the looming threat of an expensive liner replacement, buyers view it as a liability. At best, it has a neutral impact on property value; at worst, it’s a negative.

The EdenPool Verdict
There is a reason we don’t build lined pools. To deliver a product that genuinely elevates a property, you need a foundation of absolute structural integrity. We apply rigorous Northern European standards of discipline and precision to every gunite shell we engineer, ensuring your pool isn’t just beautiful on day one, but remains a flawless asset for decades.

As clients become more educated on the realities of pool construction, the choice becomes remarkably clear. Skip the plastic. Build something permanent.

Concrete pool vs Liner – What is best?