Fibreglass Pool Crack Repair: How It Works and When You Need Full Resurfacing
- SPLASH POOL & SPA
- Oct 2, 2025
- 3 min read
A fibreglass pool is a strong and durable investment, but like any structure, it can develop problems over time. One of the most common issues pool owners face is cracking in the pool shell. If not treated correctly, these cracks can cause water leaks, structural weakness, and even pool collapse in severe cases.
At Splash Pool & Spa Resurfacing, we provide professional fibreglass pool crack repair and full resurfacing services to restore pools safely and effectively.
What Causes Cracks in Fibreglass Pools?
Cracks in a fibreglass pool can appear for several reasons, including:
Ground movement or soil instability
Improper installation of the pool shell
Excessive water pressure or hydrostatic issues
Ageing of the fibreglass material
Localised impact damage
Identifying the cause of the crack is just as important as repairing it, to ensure the damage doesn’t return.
The Fibreglass Pool Crack Repair Process
When the pool shell is in good overall condition (with no signs of osmosis, bulging, or delamination), a localised crack repair can often restore the pool successfully. The process usually includes:
Draining the pool and stabilising the structure – braces are sometimes installed to prevent wall movement while the pool is empty.
Grinding and re-levelling the damaged section to stabilise the surface.
Sealing the crack and reinforcing the area with multiple layers of fibreglass matting and resin.
Sanding the full pool surface to prepare for coatings.
Applying new coatings – usually one resin coat followed by two coats of Aquaguard gelcoat for a smooth, watertight, and UV-resistant finish.
This method is cost-effective and works well for newer pools or those with isolated damage.
When Full Fibreglass Resurfacing Is the Best Solution
For pools that are showing multiple cracks, advanced ageing, or signs of structural stress, a simple crack repair may not be enough. In these cases, the most reliable solution is: Crack repair PLUS full fibreglass resurfacing.
This process not only fixes the visible crack but also reinforces the entire pool shell, giving it extra strength and a completely new interior finish. Full resurfacing is the best way to prevent hidden weaknesses from causing future damage.
Why Choose a Professional for Crack Repair?
Attempting a DIY fibreglass crack repair may seem tempting, but it rarely provides a lasting solution. Professional repair ensures:
Correct structural support during the repair
High-quality fibreglass, resins, and gelcoat products
Proper curing and surface preparation for longevity
A watertight, smooth, and durable finish
Years of hands-on experience with all types of crack repairs – from minor surface cracks to complex structural damage
Fully licensed and insured company, giving you peace of mind that all work complies with Australian standards and warranty requirements
With a professional service, you can extend the life of your fibreglass pool by 10–15 years or more.
Final Thoughts
A crack in your fibreglass pool doesn’t always mean you need a full rebuild – but it does require expert assessment and the right repair method. In many cases, a targeted crack repair combined with gelcoat application will bring your pool back to life. However, for pools with more extensive damage, full resurfacing remains the safest and most cost-effective long-term solution.
At Splash Pool & Spa Resurfacing Sydney, we specialise in fibreglass pool crack repairs, resurfacing, and complete restorations. Our goal is to provide pool owners with a safe, durable, and stunning finish that lasts for years.
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