You pull the cover off in spring and the pool does not look the way you remember. The deep blue has gone dull. The steps leave a pale, powdery film on your hand, and the waterline feels rough under your fingers. Nothing is leaking, but the surface has clearly aged. That is the point where gelcoat refinishing Krugersdorp owners ask about starts to make sense.
This guide explains what gelcoat is, why it wears, how to tell cosmetic fade from real damage, and what a refinish involves on site. It also covers when another finish is worth pricing.
What is gelcoat, and why does it fade?
Gelcoat is the smooth, glossy outer layer of a fibreglass pool. It carries the colour and the sheen, and it acts as the protective skin between the water and the structure beneath. It is a pigmented, resin-based finish, engineered to resist UV, pool chemicals, algae and light abrasion.
Engineered to resist is not the same as immune. Years of sun, chemicals and brushing slowly wear the top of the layer. The pigment dulls, the gloss drops, and the surface starts to chalk. That powdery film is the gelcoat breaking down at the surface, and it is the first thing most owners notice.
A properly applied gelcoat is built to last for decades with consistent upkeep. Published figures for marine-grade gelcoat run from roughly 15 to 25 years. Treat those as ranges, not promises. Water chemistry and sun exposure decide where your pool lands.
Why does Krugersdorp weather age a pool surface faster?
The Highveld is hard on any finish. Summer brings intense UV for months at a time, and afternoon hailstorms can pit and chip an exposed surface. Dry winters in the area can drop below freezing at night, so the surface swings between cold mornings and hot afternoons.
Pools in Noordheuwel, Monument, Rangeview, Featherbrooke, Silverfields, Pinehaven, Dan Pienaarville and Krugersdorp North all take the same sky. A pool with a north-facing, unshaded surface will chalk sooner than one under trees. Neglected water chemistry speeds the process up in every suburb.
How do you know your gelcoat needs refinishing?
Faded colour, a dull finish and a rough or chalky feel point to surface wear. That is the straightforward case for a new coat. Other symptoms mean something is happening underneath, and the repair has to come first.
- Osmosis blisters: raised bubbles where water has crept in behind the gelcoat.
- Spider cracks and structural cracks: fine webbing or longer lines running through the surface.
- Delamination: places where the fibreglass layer has lifted.
- Rough patches from UV damage: areas that have worn through the sheen.
- Ongoing water loss: a level that keeps dropping beyond normal evaporation.
Water loss deserves its own check. It can come from the finish, but it can also come from pipework. Rule out a leak before you commit to a refinish.
Gelcoat refinishing Krugersdorp: what happens on site
Refinishing means applying a new protective layer of gelcoat over the existing surface. It is not a repaint. The crew works in a fixed order, and the order is the whole point.
- Drain the pool.
- Clean and sand the existing surface.
- Repair cracks, blisters and lifted areas with resin and matting.
- Let the repaired and prepared surface dry completely.
- Apply the resin and new gelcoat, then let it cure.
- Fill the pool and commission it.
Sanding gives the new gelcoat something to key into. Repairs come before any colour goes on, because a fresh coat over a blister or a lifted patch simply hides the fault for a season. Drying is the stage people want to rush. Fibreglass asks for patience here, since resin and gelcoat applied over a damp surface cannot be trusted.
The new gelcoat is only as good as the repair and preparation under it. Ask any contractor who quotes you what they do about blisters, cracks and lifted areas before the coat goes on.
Trademen Pools handles all of this in-house, with the same crew doing repair, refinishing and commissioning. For the chemistry behind the surface, this overview of the role of gelcoat in fibreglass pools is a useful read.
How long does gelcoat refinishing take, and what does it cost?
A full refibreglass on an average pool takes three to five days. Minor surface repairs on their own can often be done in a day or two. Size, the extent of the damage and the colour you choose all move the timeline.
For a 6×4 pool, refibreglassing costs about R25,000. Larger pools cost more, and heavy damage adds repair time. Trademen Pools gives one overall price for the job, with minor extras such as a light or sand change included in it. Written quotes follow a site inspection, so the number you receive reflects your pool and not an average.
The refinish carries a five-year guarantee. Trademen Pools honours it for normal wear. It does not cover destruction from natural causes such as weather, or damage from human interference, such as someone walking on a surface that is still curing.
Is refinishing in fibreglass always the right choice?
Not always. A pool can have a concrete shell finished in fibreglass, and that raises a fair question. Is another finish worth pricing while the pool is drained anyway?
Marbelite is the finish Trademen Pools builds most, and the business recommends it. It gives a classic, matte plaster surface that suits natural stone, flagstone copings and warmer, more traditional exteriors. It also costs less to redo. A remarbelite on a 6×4 pool runs about R18,000 against about R25,000 for a refibreglass, and takes the same three to five days. Where your shell allows it, ask for both quotes at the site visit.
Fibreglass still makes sense when you like the smoother surface with a slight sheen. It suits cleaner, contemporary lines. Ask for an AI-designed visualisation first. It shows each finish in your own garden, against your paving, before you spend anything.
How do you protect the new gelcoat once it is in?
Keep people, pets and tools off the surface until the crew says it has cured. Handprints and footprints in wet resin are exactly the human interference a guarantee cannot cover. After commissioning, keep the water balanced and brush the surface regularly. A smooth gelcoat gives algae little to grip, so a quick brush does more work than on a textured finish.
Shade helps, but not by much. UV will still work on the surface. The realistic aim is to slow the wear and notice early signs, such as new chalking near the waterline. Trademen Pools also offers maintenance contracts for owners who would rather not do it themselves. For the other side of the choice, this comparison of gelcoat and epoxy pool paint explains why a coat of paint is not the same thing.
Which way should you go? A few quick questions
- Is the surface only faded and chalky? A straightforward refinish is the likely answer.
- Do you see blisters, cracks or lifted patches? Book a site inspection. The repair matters more than the colour coat.
- Is the water level dropping? Rule out a leak before you refinish.
- Do you prefer a matte, traditional look? Ask for a remarbelite quote beside the refibreglass one.
- Do you want the smooth, contemporary sheen? Refinish in gelcoat and ask for a visualisation first.
Chalky gelcoat in Krugersdorp? Get it priced
Tell Trademen Pools your pool's size and what you see on the surface, and you will get one overall price for the refinishing. The job takes three to five days, and the team can start without a waiting list.