Relining a gunite pool essentially means resurfacing it. The gunite shell forms the structural base of the pool, while the lining is the waterproof finish layer that protects it and gives it its final look. Over time, this surface wears down, becomes rough, or starts leaking — and that’s where we come in. At GIBBS POOLS, we specialise in restoring pools to look and perform like new, using professional techniques and high-quality materials suited to local conditions in Grabouw and the greater Cape Town area.
Main Relining Options for Gunite
Choosing the right finish is one of the most important decisions in the relining process. Each option has its own lifespan, cost range, and aesthetic appeal:
- Plaster (Marbelite) – Lasts 7–12 years. This is the most cost-effective option, offering a smooth, classic white or light blue finish. It’s a popular choice for homeowners wanting a clean, traditional look.
- Quartz Plaster – Lasts 12–15 years. Stronger than standard plaster, with a speckled appearance that adds visual depth while improving durability.
- Pebble Finish – Lasts 15–20+ years. A premium, natural-looking surface with texture. Extremely durable and resistant to wear, making it ideal for long-term performance.
- Tile – Lasts 20+ years. The most luxurious option, offering a sleek, high-end finish that is easy to clean and highly resistant to staining.
- Fiberglass/Fiberlining – Lasts 15–25 years. A smooth, non-porous finish that is low maintenance, algae-resistant, and excellent for sealing leaks — one of our most recommended solutions at GIBBS POOLS.
Our Recent Gunite Pool Relining Project in Grabouw
At GIBBS POOLS, we recently completed a full relining project in Grabouw, transforming an old, worn-out pool into a modern, low-maintenance feature.
This project clearly shows how professional relining can completely revitalise a pool without the need for rebuilding.
Step-by-Step Process
At GIBBS POOLS, we follow a detailed and proven process to ensure long-lasting results:
1. Drain & prep
The pool is safely drained, and we carry out a thorough acid wash to remove buildup. All fittings, lights, and return lines are either removed or sealed to prepare the surface properly.
2. Chip out old surface
We remove all loose or damaged plaster. In cases of severe deterioration, the entire surface is stripped. This ensures a solid base for the new finish. In some projects, high-pressure water blasting is used for precision.
3. Repair the gunite shell
Any structural cracks are opened, reinforced, and sealed using hydraulic cement and steel staples. We also inspect and repair plumbing issues at this stage to prevent future leaks.
4. Apply bond coat
A specialised bonding agent is applied to ensure the new finish adheres properly to the existing gunite structure.
5. Apply new finish
Depending on the selected finish:
- Plaster, Quartz, or Pebble is mixed on-site and hand-applied, then polished or exposed.
- Fiberlining involves installing fiberglass matting and resin, creating a seamless, waterproof inner shell.
- Tile is carefully installed using high-strength adhesives and grouted for a premium finish.
6. Acid wash & fill
For plaster-based finishes, we perform a final acid wash to expose the aggregate and enhance appearance. The pool is then filled immediately — without interruption — to avoid visible water lines.
7. Startup & balance
The first 30 days are critical. We guide clients through proper startup procedures, including brushing, continuous filtration, and careful chemical balancing to ensure the new surface cures correctly.
Key tips if you’re considering it
- Don’t drain it yourself: Gunite pools can lift out of the ground due to groundwater pressure. We always assess conditions before draining.
- Choose the right finish for your lifestyle:
- Families with kids often prefer smoother finishes like plaster or fiberlining.
- Low-maintenance seekers benefit from fiberlining or pebble.
- Luxury-focused homeowners often choose tile.
- Timing matters: In the Western Cape, spring and autumn are ideal. Extreme summer heat can cause finishes to cure too quickly, increasing the risk of cracking.
At GIBBS POOLS, our fiberlining service is especially popular because it not only restores the pool’s appearance but also seals cracks, prevents leaks, and reduces algae growth thanks to its non-porous surface.
Benefits of Gunite Pools
- Fully custom shapes & sizes: Gunite allows complete design freedom — from freeform pools to beach entries, swim-up bars, and deep diving ends.
- Durability: A well-built gunite pool can last 30–50+ years. Reinforced with steel and concrete, it handles ground movement exceptionally well.
- Versatile finishes: From plaster to pebble to tile, you can refresh the look of your pool over time without replacing the structure.
- Increased property value: A custom gunite pool is a permanent, high-end feature that enhances resale appeal.
- Repairable & renewable: Unlike some pool types, gunite pools can be resurfaced multiple times, extending their lifespan significantly.
Trade-offs people accept:
Gunite pools do require a higher upfront investment and take longer to complete (typically 8–12 weeks). They also need regular brushing and proper chemical balancing due to their porous surfaces. However, for homeowners looking for a long-term, fully customised solution, these trade-offs are often well worth it.
Are you thinking about installing one or relining your pool?
At GIBBS POOLS, we’re here to help 🙏
Whether you’re restoring an existing pool or building something completely new, we bring expertise, quality workmanship, and tailored solutions to every project in Grabouw and beyond.