The Ultimate Guide to Fibreglass Pools in South Africa (2026 Edition)
Why fibreglass-lined pools are the smartest investment for modern South African homes — durability, comfort, and low maintenance explained.
Benefits of Fibreglass Pools
1. Low-Maintenance Surface (Fibreglass Finish)
Fibreglass pools are known for being significantly easier to maintain than traditional plaster or marble finishes.
- The fibreglass gelcoat/poolcoat is smooth and non-porous, reducing dirt and algae adhesion.
- Lower algae growth compared to plastered surfaces.
- Reduced chemical usage and easier brushing/cleaning.
Key Advantages: Lower chemical costs, fewer maintenance hours, and a cleaner surface year-round.
2. Structural Strength + Flexibility
A fibreglass-lined pool combines the strength of a concrete shell with the flexibility of fibreglass, giving you the best of both worlds.
- Concrete base = long-term structural stability.
- Fibreglass lining = crack-bridging capability and flexibility.
- Performs well with minor ground movement.
Why this matters in South Africa: Many areas have expansive clay soils and seasonal ground movement — fibreglass-lined systems cope better and reduce long-term repairs.
3. Comfortable & Swimmer-Friendly Finish
Fibreglass offers a silky-smooth finish that is noticeably more comfortable for swimmers than rough plaster.
- No rough plaster — gentle on feet and swimsuits.
- Safer for children and pets.
- Excellent for steps, seating and ledges.
4. Lower Long-Term Maintenance Costs
Compared to concrete/plaster pools, fibreglass-lined pools require far less long-term maintenance.
- No frequent re-plastering.
- Fibreglass lining lifespan typically 15–25+ years.
- Repairs are easier and more localised.
5. Excellent Performance in the South African Climate
Fibreglass surfaces are UV-resistant, saltwater friendly, and resist chemical attack — ideal for both coastal and inland climates.
Comparison: Built Fibreglass-Lined vs Other Pool Types
| Feature | Built + Fibreglass Lined | Plain Concrete | One-Piece Fibreglass | Vinyl |
|---|---|---|---|---|
| Custom Shape | ✅ Unlimited | ✅ Unlimited | ❌ Limited | ⚠ Limited |
| Surface Comfort | ✅ Excellent | ❌ Rough | ✅ Excellent | ✅ Smooth |
| Algae Resistance | ✅ High | ❌ Low | ✅ High | ✅ High |
| Maintenance Cost | ✅ Low | ❌ High | ✅ Very Low | ⚠ Medium |
| Structural Strength | ✅ Very High | ✅ Very High | ⚠ Shell only | ⚠ Moderate |
| Repairability | ✅ Local repairs possible | ⚠ Major work | ❌ Difficult | ⚠ Liner replacement |
| Installation Time | ⚠ Moderate | ❌ Long | ✅ Fast | ✅ Moderate |
Recommended Products From Allied Composites
When building or resurfacing fibreglass pools, professional-grade materials matter. Below are top Allied Composites products commonly used by contractors and installers in South Africa.
Crystic® Topcoat 508 PA
Premium UV- and chemical-resistant topcoat for pool interiors.
- Glossy, long-lasting finish
- UV stable and saltwater friendly
- Ideal for DIY refinishing and professional resurfacing
Crystic® Resin 352
High-strength polyester laminating resin for structural layers.
- Excellent wet-out and mechanical properties
- Used for laminating fibreglass reinforcements
- Durable under repeated pool exposure
Chopped Strand Mat (CSM) — 300g / 450g
Reinforcement mat for pool laminates and structural zones.
- Good conformability on curves and steps
- Used in combination with laminating resin
- Layering improves strength and impact resistance
Poolcoat Systems
Specialist flowcoat systems for a uniform pool finish.
- Colour-stable, smooth finish
- Designed for chemical resistance and longevity
- Excellent for achieving a professional look
MEKP Catalyst & Additives
Professional-grade catalysts and additives for consistent curing.
- Accurate curing control
- Optimised handling and pot life
- Used with Crystic resins and topcoats
Need product datasheets or technical support? Contact Allied Composites
Final Thoughts
A fibreglass-lined pool delivers comfort, low maintenance, long lifespan, and excellent performance for South African homes. When combined with quality materials such as Allied Composites’ Crystic® range and professional installation, you get a pool that is beautiful, durable, and cost-effective for decades.

































