What Is the Lifespan of a Fibreglass Pool? Can a Fibreglass Pool Be Repaired?

Fibreglass pools have become a popular choice for homeowners due to their durability, smooth finish, and relatively low maintenance requirements. However, like any other type of swimming pool, they have a finite lifespan and may require repairs over time. If you’re considering installing a fibreglass pool or already own one, you may be wondering how long it will last and whether it can be repaired if issues arise.

In this article, we’ll explore the typical lifespan of a fibreglass pool, the factors that influence its longevity, common problems that may develop, and how repairs can extend its usability.

The Lifespan of a Fibreglass Pool

Fibreglass pools are known for their longevity, with most manufacturers claiming a lifespan of 25 to 50 years. This estimate, however, depends on several factors, including:

1. Quality of Manufacturing

Not all fibreglass pools are created equal. Higher-quality pools are made using premium-grade fibreglass and resin, which provide better structural integrity and resistance to wear and tear. Cheaper alternatives may degrade faster due to inferior materials.

2. Installation Process

Proper installation is critical to the lifespan of a fibreglass pool. If the pool is not installed on a properly compacted and level surface, it may settle unevenly, leading to structural damage over time. Additionally, incorrect backfilling can cause pressure imbalances that weaken the pool shell.

3. Maintenance and Water Chemistry

While fibreglass pools require less maintenance than concrete or vinyl pools, proper care is still essential. Maintaining balanced water chemistry prevents damage to the gel coat, which protects the fibreglass from deterioration. High levels of acidity or alkalinity can cause surface degradation, reducing the pool’s lifespan.

4. Environmental Factors

The surrounding environment plays a significant role in determining how long a fibreglass pool will last. Pools exposed to extreme temperature fluctuations, excessive sunlight, or heavy usage may experience wear and tear more quickly than those in moderate climates with proper care.

5. Usage and Wear

A fibreglass pool that is frequently used, especially for activities involving heavy impact (such as jumping or diving), may experience more stress over time. Proper usage and adherence to weight limits can help maintain the pool’s structure for longer.

Can a Fibreglass Pool Be Repaired?

Yes, fibreglass pools can be repaired, and in most cases, repairs can restore them to near-original condition. While fibreglass pools are durable, they are not immune to damage. Here are some of the most common issues that may arise and how they can be addressed:

1. Surface Cracks and Gel Coat Damage

Over time, small cracks, bubbles, or fading may appear on the gel coat (the protective outer layer of the pool). These issues are usually cosmetic rather than structural and can be fixed with a gel coat resurfacing.

Repair Process:

• The damaged area is sanded down to remove any loose material.
• A new layer of gel coat is applied, followed by polishing and sealing.
• In cases of severe fading, the entire pool surface may need to be refinished.

2. Structural Cracks and Leaks

Although rare, fibreglass pools can develop deeper cracks due to improper installation, soil movement, or excessive pressure. Structural cracks may lead to water leaks, which require immediate attention.

Repair Process:

• The affected area is drained and dried.
• The crack is widened slightly to create a clean surface for bonding.
• A fibreglass repair patch and resin are applied to seal the crack.
• The area is sanded and refinished to match the surrounding pool surface.

3. Blisters (Osmotic Bubbles)

Blisters or bubbles forming under the gel coat are a sign of osmotic damage, where moisture becomes trapped between layers of the pool. If left untreated, these blisters can grow and weaken the pool shell.

Repair Process:

• The blisters are cut open, drained, and dried.
• The affected areas are filled with epoxy resin.
• A fresh gel coat layer is applied to restore the finish.

4. Delamination (Peeling of Layers)

Delamination occurs when the gel coat separates from the fibreglass layers underneath, leading to peeling or flaking. This issue is often caused by poor manufacturing or excessive chemical imbalances in the pool water.

Repair Process:

• The damaged layers are carefully removed.
• A new fibreglass layer is applied and bonded to the existing shell.
• A fresh gel coat is added to protect the new surface.

5. Pool Shell Movement or Bulging

If the ground shifts or if the pool was installed incorrectly, bulging or warping of the fibreglass shell may occur. This is a serious issue that requires professional assessment and correction.

Repair Process:

• The pool may need to be partially drained to relieve pressure.
• A specialist will assess the soil and backfill to determine the cause.
• Structural reinforcement may be applied to stabilize the pool shell.

How to Extend the Life of Your Fibreglass Pool

To get the most out of your fibreglass pool and minimize the need for repairs, consider these maintenance tips:

1. Maintain Balanced Water Chemistry
   • Regularly test and adjust pH, chlorine, and alkalinity levels.
   • Avoid harsh chemicals that can damage the gel coat.
2. Regular Cleaning
   • Use a soft brush to clean the pool walls and floor.
   • Avoid abrasive cleaners or hard scrubbing that could wear down the surface.
3. Monitor for Early Signs of Damage
   • Address small cracks, fading, or blisters before they worsen.
   • Keep an eye out for leaks or water loss, which may indicate deeper issues.
4. Proper Pool Usage
   • Avoid jumping or placing heavy objects on the pool edges.
   • Ensure that pool installation and landscaping do not cause pressure on the pool shell.
5. Professional Inspections and Resurfacing
   • Have a professional inspect your pool every few years for potential issues.
   • Consider resurfacing the gel coat after 15–20 years to refresh its appearance and durability.

Conclusion

A well-maintained fibreglass pool can last anywhere from 25 to 50 years, providing decades of enjoyment for homeowners. While occasional repairs may be needed, fibreglass pools are highly durable and can be restored to their original condition with proper maintenance and expert repair services.

West Coast Pool Resurfacing is a Perth-based company specializing in fibreglass pool repairs and resurfacing, helping homeowners extend the life of their pools with professional care and high-quality finishes.

By staying proactive with maintenance, monitoring for signs of damage, and addressing issues promptly, you can maximize the lifespan of your fibreglass pool and ensure it remains a beautiful, functional feature of your home for years to come.