If you’re choosing the best type of pool for your home, it often means weighing up the benefits of concrete pools versus fibreglass pools. Both are popular with Auckland homeowners, but which is right for you? At Inground Pools, we have over 35 years of experience as inground swimming pool builders, so we understand the strengths and limitations of both. In this guide, we compare concrete and fibreglass pools across key factors to help you make an informed decision.
Customisation and Design Flexibility
One major difference between concrete and fibreglass pools is how much you can customise the design. Fibreglass pools come as pre-formed shells in set shapes and sizes. You choose from a catalogue of models and pick a shape and size that best fits your yard. While there are some stylish fibreglass designs available, you’re limited to the shapes the manufacturer produces. If you have a very specific idea or a tricky site, a fibreglass pool might not suit your needs.
By contrast, concrete pools offer virtually unlimited design flexibility. Because they’re built from scratch, you can have any shape, size, or features you want. For instance, your concrete pool could include:
- a freeform lagoon shape with a waterfall,
- an integrated spa or a shallow beach-style entry,
- a dramatic infinity edge.
With concrete, the possibilities are practically endless! You get a pool that fits your vision perfectly. Even the interior finish is customisable, allowing you to achieve any look and feel you want. Adhering to government pool water safety guidelines, Inground Pools specialises in bringing these one-of-a-kind designs to life, working closely with you to create a pool that truly complements your home and lifestyle.
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Installation Timeline
The installation process for fibreglass vs concrete pools is quite different. Fibreglass pools have the advantage of speed. Since the shell is pre-made, installing a fibreglass pool mostly involves excavating the hole, lowering in the one-piece shell, connecting the plumbing, and backfilling around it. This process is often completed in just a few weeks, meaning you could be swimming soon after you decide on your pool.
Concrete pools take longer because they are built on-site. After excavation, a steel reinforcing frame is constructed, and concrete is poured to form the pool shell. Once the concrete cures, the interior finish (such as plaster or tiling) is applied and the surrounding paving or decking is completed. This process can span several weeks to a few months. It’s a more involved project, so you’ll need a bit more patience before your pool is ready to enjoy.
While fibreglass wins on installation speed, concrete wins on customisation and longevity. At Inground Pools, we manage the entire concrete pool build efficiently and keep you informed at every step. We also take care to minimise disruption to your property during construction. (After all, a concrete pool takes longer to install, but the wait is worth it for a truly tailor-made result.)
Surface Texture and Comfort
How the pool surface feels is another point of difference. Fibreglass pools have a smooth, glossy gelcoat interior. It’s very gentle on skin with no rough edges. Perfect for families. The non-porous finish also makes it harder for algae to cling, which helps the pool stay clean. One minor downside: the slick surface can be a bit slippery, but overall fibreglass offers excellent comfort in the water.
Concrete pools offer a range of interior finishes, and you can choose one to suit your comfort preference. Some concrete finishes (like standard plaster or exposed aggregate) are more textured than fibreglass. However, you also have options for very smooth finishes. For example, a fully tiled interior that can feel nearly as smooth as fibreglass. With concrete, you decide exactly how you want your pool surface to feel.
Durability and Lifespan
When investing in a pool, you need it to stand the test of time. Fibreglass pools are durable and long-lasting. Their flexible nature allows them to cope with minor ground movement without cracking, and with good upkeep a fibreglass pool can serve your family well for many years. Over time, the gelcoat surface may fade or dull, and eventually the shell might need repairs or resurfacing after a few decades, but all in all fibreglass is a reliable long-term choice.
Concrete pools are known for exceptional longevity. The steel-reinforced structure is extremely solid, built to endure decades of use and weather. Many concrete pools stay in great shape 40+ years after construction, needing only cosmetic updates. While the surface finish of a concrete pool (plaster or tiles) might need refreshing every 10–20 years, the underlying concrete shell remains intact and strong.
At Inground Pools, we build our concrete pools with a focus on durability. We use top-quality materials and proven techniques to ensure your pool will endure New Zealand’s conditions for decades. Your concrete pool will be a long-term asset that adds value to your property.
Maintenance Requirements
All pools need regular maintenance, but there are differences in the upkeep required for fibreglass versus concrete. Fibreglass pools generally demand a bit less effort day-to-day. The smooth, non-porous surface resists algae growth, meaning you’ll spend less time brushing the walls and often use fewer chemicals to keep the water balanced. In short, fibreglass pools often need simpler routine care, and you’ll never have to worry about resurfacing the interior.
Concrete pools need a more hands-on maintenance routine. Because the surface is porous, algae and dirt can cling easily, so regular brushing and attentive water care are important to keep the pool pristine. Every decade or two, the interior may need to be resurfaced to renew its look and ensure it remains watertight. The good news is that modern pool technology can make concrete pool upkeep easier than ever. Automated cleaners, efficient filtration, and saltwater or mineral sanitiser systems can significantly cut down the manual work. With the right equipment and a consistent routine, even a concrete pool can be relatively low-hassle to maintain.
No matter which type of pool you choose, consistent maintenance is the key to crystal-clear water and a long life. Inground Pools provides every client with detailed guidance on pool care, and we’re always available with professional maintenance services if you need extra help. Our goal is to make owning your pool as easy and stress-free as possible.
Long-Term Costs
Considering the long-term costs is essential when choosing a pool. Fibreglass pools usually have a lower initial price tag. The shell is pre-fabricated and is quick to install, which keeps installation costs down. Fibreglass also tends to have lower ongoing expenses. You won’t need to resurface the interior, and you might spend less on chemicals. These factors make fibreglass a very budget-friendly option over the lifetime of the pool.
Concrete pools typically require a larger initial investment. Custom design and on-site construction are more labour and material intensive, which increases the upfront cost. Additionally, concrete pools come with some ongoing costs: in the future you’ll likely need to refurbish the interior finish, and maintenance might involve a bit more time and chemicals.
However, many homeowners find a concrete pool well worth the expense. It’s a permanent addition that can enhance your property’s value and outdoor living. And since a concrete pool is built to last a lifetime, you won’t be faced with replacing it, even decades later you can renovate it rather than start over. In short, you pay more at the start, but you get a pool that’s uniquely yours and built to go the distance.
At Inground Pools, we work hard to ensure your investment pays off. Our expert design and quality construction mean your concrete pool will provide excellent value over the long term.
Conclusion: Why Concrete Pools Are the Ideal Choice
Both concrete and fibreglass pools can provide a fantastic backyard oasis, but each has its strengths. Fibreglass pools excel in quick installation and easy maintenance, which is great if you want a hassle-free project and straightforward ownership.
Concrete pools, on the other hand, stand out for their unmatched customisation, superior durability, and a luxury aesthetic. If you want a pool tailor-made to your vision and built to last, a concrete pool is the ideal choice.
With Inground Pools as your builder, choosing a concrete pool becomes even more rewarding. We bring over 35 years of expertise to each project to ensure a smooth, high-quality build. We guide you through every step, tailoring our service to your needs so you feel fully supported. The result is a beautiful, long-lasting pool that is uniquely yours.
Ready to take the plunge and create your dream pool? Contact Inground Pools today for a free quote or consultation. We’re happy to answer your questions and show you how we can turn your vision into reality. Let us build you a bespoke concrete pool that truly elevates your home and lifestyle!