A lot of Plumstead pools were built in concrete and finished in marbelite when the house was new. That finish does a good job for many years, but it does not last forever. When it starts to feel like sandpaper and the algae keeps coming back, fibreglass pool relining is often the most practical fix.
This page is written for Plumstead pool owners weighing up that decision. It covers what a lining is, which pools suit it and what to expect from our team on site.
What fibreglass pool relining actually is
Relining does not replace your pool. We keep the existing concrete, gunite or marbelite shell and resurface it. A reinforced fibreglass layer is bonded to the prepared shell, then finished with a gelcoat. The result is a new inner skin that is smooth and non-porous.
You can read the full service overview on our fibreglass pool relining page.
Is your Plumstead pool a good fit for pool relining?
Most concrete pools in the suburb are. Relining tends to make sense when:
- The marbelite has gone rough, patchy or pitted
- Algae grows back quickly in corners and on steps
- There are fine surface cracks you want sealed under a new layer
- You want a pool that needs less brushing through the year
Relining is not a cure for a plumbing leak. If the pool loses water, we check that first. Our article on tracing hidden leaks in marbelite and gunite pools explains why.
Preparation: the part of pool relining you never see
A lining is only as good as the surface under it. Before any fibreglass goes down, we drain the pool, grind or sand the old finish, repair cracks and prime the shell.
Plumstead gets steady winter rain, and a wet shell will not bond well. We plan the work around the weather, and that is part of why a job usually takes 5 to 10 working days.
Laying and finishing the fibreglass pool lining
Once the shell is ready, the reinforced fibreglass layer is applied across the floor and walls, then sealed with gelcoat.
Living with a relined fibreglass pool in Plumstead
The day to day difference is noticeable. Algae has less to grip on a smooth surface, so the pool usually needs fewer chemicals and less brushing than worn marbelite. In autumn, when leaves land in the water, they lift off more easily too. With proper care, the lining lasts 15 to 25 years.
A few simple habits help the new surface stay in good shape:
- Keep the water balanced and test it weekly in summer
- Skim leaves before they sink and sit on the floor
- Run the pump long enough each day to keep water moving
- Brush lightly with a soft brush rather than a stiff one
If you would rather keep a plastered look, marbelite resurfacing is also an option. We do both and will tell you which one suits your pool after we have seen the shell and talked about how the family uses it.
Plumstead pool relining cost
There is no fixed price for relining. The cost depends on pool size, shape, condition and access. Our 2026 Cape Town relining price guide explains the main factors. After a site visit, we give you a written quote.
Plumstead fibreglass pool owners ask
Does pool relining work on an old concrete pool?
Yes. After proper preparation, the lining can go over old concrete or marbelite.
What causes black spots in a fibreglass pool?
That is usually osmosis. We treat it by grinding, disinfecting and relining the affected area with new gelcoat.
Is pool relining guaranteed?
We guarantee fibreglass lining and repair work for up to 5 years, depending on the project.
Do you do fibreglass pool relining in nearby suburbs?
Yes, including fibreglass relining in Bergvliet and other Southern Suburbs areas.
Talk to us about pool relining in Plumstead
Call or WhatsApp 074 378 6623, email info@poolsreno.co.za, or use our contact form. A few photos of the pool help us prepare for the site visit.
