Top 5 Myths About Fibreglass Pools Debunked
When it comes to choosing a swimming pool, fibreglass has become an increasingly popular option among Australian homeowners. With benefits such as quick installation, low maintenance, and sleek aesthetics, it’s no wonder fibreglass pools are making waves. Yet, despite their rising popularity, several myths and misconceptions persist — often leaving prospective buyers confused or misinformed. To help you make an informed decision, we’re setting the record straight by debunking the top five myths about fibreglass pools.


Myth 1: Fibreglass Pools Are Too Fragile and Prone to Cracking
Reality: Modern fibreglass pools are incredibly strong and flexible.
One of the most common concerns is that fibreglass pools can crack easily, especially when exposed to temperature changes or ground movement. While early fibreglass models may have been less resilient, modern manufacturing techniques have significantly improved the material’s durability.
Today’s fibreglass pools are constructed using multiple layers of high-quality composite materials, including a gel coat for UV protection, vinyl ester resin for water resistance, and structural fibreglass for strength and flexibility. This construction allows the shell to flex slightly under pressure — making it more resistant to ground shifts and minor earthquakes than concrete or vinyl-lined pools.
Cracks in fibreglass shells are extremely rare and are often limited to superficial surface marks (known as “crazing”) rather than structural damage. With proper installation by a licensed professional, fibreglass pools are designed to last for decades with minimal issues.
Myth 2: You Can’t Customise a Fibreglass Pool
Reality: While shapes are pre-designed, there’s plenty of room for customisation.
A common misconception is that fibreglass pools come in just a few standard shapes and sizes, leaving little room for creative freedom. While it’s true that fibreglass pools are pre-moulded, modern ranges offer an extensive variety of designs — from sleek lap pools to family-friendly plunge pools and luxurious resort-style models with built-in spa zones and tanning ledges.
Customisation doesn’t stop with the shell. Homeowners can personalise their pool area with:
- Decorative water features and lighting
- Surrounding plants and landscaping
- Interior colours and finishes
- Integrated spas, swim jets, or heating systems
In fact, many fibreglass pool designs rival the appearance of custom concrete installations — but without the long build times or costly maintenance.


Myth 3: Fibreglass Pools Are More Expensive Than Concrete Pools
Reality: Fibreglass pools are often more cost-effective overall.
At first glance, some fibreglass pools may seem pricey compared to concrete options. However, it’s important to look at the full picture — including installation, long-term maintenance, and lifespan.
Concrete pools typically take several months to install and require extensive site work, steel reinforcement, and labour-intensive processes like curing and tiling. This drives up both costs and construction time.
Fibreglass pools, on the other hand, arrive pre-manufactured and can usually be installed within a week. This efficiency significantly reduces labour costs and minimises disruptions to your property.
What’s more, fibreglass pools are non-porous, meaning they resist algae growth and require fewer chemicals to maintain water balance. That translates to lower running costs over time — saving you hundreds, if not thousands, in upkeep each year.
Myth 4: Fibreglass Pools Don’t Last as Long as Other Types
Reality: A well-maintained fibreglass pool can last 25 years or more.
Some homeowners worry that fibreglass pools are a short-term solution compared to concrete pools, which can last 50+ years. While concrete is undoubtedly durable, it also requires resurfacing every 10–15 years and ongoing repairs to prevent cracking and wear.
Fibreglass pools, when manufactured and installed properly, can easily last 25–30 years with minimal maintenance. The gel coat surface resists fading, staining, and wear — and doesn’t need resurfacing. In fact, many fibreglass pool warranties cover structural integrity for 25 years or longer, which speaks to the industry’s confidence in the material.
Like any pool, longevity comes down to proper care and water balance — but fibreglass offers a far more forgiving experience, especially for first-time pool owners.
Myth 5: Fibreglass Pools Aren’t Suitable for Sloping or Difficult Sites
Reality: With the right installation team, fibreglass pools can be installed on most blocks.
Another persistent myth is that fibreglass pools are only suitable for flat, open yards. While certain site conditions can complicate installation, experienced pool builders have techniques to overcome most challenges — including sloping terrain, rocky soil, or limited access.
Options like partial in-ground installation, retaining walls, crane lifts, and custom excavation plans make fibreglass pools a viable choice even for complex properties. In many cases, the faster installation process of fibreglass pools actually makes them more practical for tricky sites than concrete pools, which require more on-site curing and formwork.
Before ruling out a fibreglass option, speak with a reputable installer. A site inspection will help determine the best approach for your property — and could reveal more options than you expected.


Bonus Myth: Saltwater and Fibreglass Don’t Mix
Reality: Fibreglass pools are perfect for saltwater systems.
Many pool owners prefer saltwater systems for their gentle feel and lower chemical requirements. However, there’s a lingering belief that saltwater will corrode fibreglass surfaces. This myth likely stems from confusion with metal components, which can corrode in saltwater environments if not properly treated.
Fortunately, fibreglass pool shells are entirely compatible with saltwater chlorinators. In fact, the non-porous surface of fibreglass means salt and water don’t penetrate or degrade the material — unlike some porous finishes in concrete pools.
Just ensure that any metal fixtures (like ladders, handrails or lighting) are stainless steel or marine-grade to prevent corrosion, and you’ll enjoy a clean, low-maintenance pool with the benefits of saltwater comfort.
The Bottom Line
Fibreglass pools have come a long way over the past few decades. They’re no longer the limited, fragile products some still imagine — but rather, advanced, versatile, and highly durable additions to any backyard. By debunking these common myths, we hope you feel more confident in considering fibreglass as a smart and stylish pool investment.
If you’re weighing up your options, it’s always best to speak with a local expert who can assess your site, goals, and budget. The right pool should fit your lifestyle, not the other way around — and for many Australians, fibreglass offers the ideal blend of beauty, convenience, and long-term value.
To get your fibreglass pools installed, head to our Free Quote page so our team can get your started with your new pool today!