Gunite swimming pools have quietly become one of the most popular choices for Cape Town homeowners who want a durable, custom-shaped pool that stands up to our unique Western Cape conditions. From the sandy soils of the West Coast to the wind and salt air of the Atlantic Seaboard, a well-built gunite pool offers strength and flexibility that other methods struggle to match. If you are weighing up your options for a new pool or a full renovation, here is an honest look at how gunite works, what it costs to keep, and whether it is the right fit for your property.
What Is a Gunite Pool?
Gunite is a mixture of cement, sand and water that is sprayed at high pressure over a steel reinforcement frame (rebar). Because the concrete shell is applied on site rather than delivered pre-formed, gunite pools can be built to almost any shape, depth or size. This makes them a favourite for sloped Cape Town plots, tight courtyards, and homeowners who want something beyond a standard rectangle.
Once the sprayed shell has cured, it is finished with a waterproof plaster or specialist coating such as marbelite resurfacing, which gives the interior its smooth, sealed surface and final colour.
The Installation Process
Building a gunite pool is a staged process, and understanding it helps you plan realistically around your garden, access and the Cape’s seasonal weather. A typical build runs roughly like this:
- Excavation and shaping — the hole is dug and profiled to the design, taking soil type and drainage into account.
- Steel and plumbing — a rebar cage is tied and the pipework, skimmers and returns are set in place.
- Gunite application — the concrete is sprayed over the steel to form the structural shell, then left to cure properly.
- Waterproofing and finishing — a waterproof interior coating is applied, followed by coping, tiling and paving.
- Filling and commissioning — the pool is filled, the filtration is balanced and the water chemistry is set up.
Curing is not a step to rush. Cape Town’s dry summer heat and gusty south-easter can dry a shell too quickly, so a good installer will manage the curing carefully to avoid cracks down the line.
Maintaining a Gunite Pool
Gunite pools are hard-wearing, but the plaster or marbelite surface is porous and does need attention over the years. The good news is that day-to-day care is much the same as any pool: keep the water balanced, run the filter, and brush the walls regularly.
Routine care
Because the interior is slightly rougher than fibreglass, algae can gain a foothold more easily, so consistent brushing and chlorination matter. Test your water often through the warm months when Cape Town pools get the most use.
Longer-term upkeep
Every decade or so, a gunite pool will typically need re-plastering or resurfacing as the finish wears, stains or develops rough patches. This is normal and, handled properly, effectively renews the pool. If you prefer a lower-maintenance interior, some owners choose to convert to a fibreglass pool lining when the time comes to refinish.
What Affects the Cost?
Rather than quoting figures that rarely match a real site, it is more useful to understand what drives the price of a gunite pool in the Western Cape. The main factors include:
- Size and depth — more shell means more steel, concrete and finishing.
- Site access — narrow driveways or steep Cape Town properties make excavation and material delivery harder.
- Soil and ground conditions — sandy or unstable ground may need extra engineering.
- Finish and features — marbelite versus tiled interiors, coping choices, steps, lighting and water features all add up.
- Coastal exposure — homes near the sea may want extra corrosion-resistant fittings.
A proper on-site assessment is the only way to get a figure you can trust, which is why it is worth having an experienced local team walk your property before committing.
Is a Gunite Pool Right for You?
If you want a pool that can be shaped to your garden, handles our variable Cape conditions well and lasts for decades with sensible upkeep, gunite is hard to beat. It suits homeowners who value durability and a custom look, and who are comfortable with periodic resurfacing as part of long-term ownership.
Whether you are planning a brand-new build or restoring a tired existing pool, the team at Aquatic Pools works with homeowners across Cape Town and the Western Cape to get the details right the first time. If you would like tailored advice for your property, get in touch and we will help you plan the pool that fits your home, your garden and how you want to use it.
