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When building a new swimming pool or renovating an existing one, one of the most important decisions you’ll make is the pool finish. Two of the most common options in South Africa are marbelite and fibreglass.
Both finishes have advantages and limitations. The right choice depends on how the pool will be used, the condition of the existing structure (for renovations), and long-term maintenance expectations.
This guide outlines the key differences to help you make an informed decision.
decades and remains a popular option for both residential and commercial pools.
Key Characterics:
Marbelite offers flexibility in design and is often chosen for new custom pool construction or when resurfacing an existing concrete pool.
Fibreglass can be used in two ways:
In the context of resurfacing, fibreglass lining creates a smooth, sealed surface over the existing pool structure.
Key Characteristics:
Fibreglass is often selected for pool renovations, especially where ongoing surface issues exist.
Durability
Marbelite: Durable but prone to staining and surface wear over time. Hairline cracking may occur as the pool ages.
Fibreglass: Highly durable and flexible, making it more resistant to cracking caused by minor structural movement.
Maintenance
Marbelite: Porous surface requires careful water balance to prevent staining and algae growth.
Fibreglass: Non-porous surface makes cleaning easier and reduces algae attachment.
Water Chemistry
Marbelite: Requires consistent chemical balancing to protect the finish.
Fibreglass: Generally requires fewer chemicals due to its smooth surface.
Aesthetics
Marbelite: Offers a traditional look and can be customised with colour or aggregate.
Fibreglass: Has a clean, smooth appearance but fewer custom finish options.
Installation & Repairs
Marbelite: Easier to repair small surface defects.
Fibreglass: Repairs are possible but require specialised workmanship.
For new pool construction, marbelite is often the preferred choice because:
Fibreglass shells can be an option for new builds, but they are limited in size and shape compared to custom concrete pools.
For pool renovations, the choice depends on the condition of the existing pool.
Marbelite resurfacing is suitable when the structure is sound and a refreshed surface is needed.
Fibreglass relining can be a good solution when recurring surface issues, staining or minor cracking are present.
A proper inspection is essential before deciding, as the wrong finish choice can lead to repeated problems.
Costs vary depending on pool size, condition and preparation required.
In general:
A site assessment allows for accurate recommendations and budgeting.
There is no single “best” pool finish. The right choice depends on:
At Chosen Pools, we assess each pool individually and recommend solutions based on practicality and performance — not preference for one finish over another.
If you’re planning a new pool or considering resurfacing an existing one, professional guidance can help you avoid costly mistakes.
Contact Chosen Pools to discuss whether marbelite or fibreglass is the right solution for your pool in Johannesburg or Gauteng.