Geyser Repair vs Replacement:
How to Decide

The Question Every Gauteng Homeowner Eventually Asks

Your geyser has stopped working — or it's leaking, making strange noises, or producing lukewarm water at best. The plumber is on his way. But before he arrives, you're already wondering: is this going to be a repair, or am I looking at a full replacement?

The honest answer depends on four things: the age of the unit, the nature of the fault, the brand and availability of parts, and what your home insurer requires.

When Repair Is the Right Call

Most geyser faults — especially in units under 8 years old — are repairable. The most common ones are:

• Failed heating element — the most frequent fault, usually R500–R900 for parts and labour
• Thermostat failure — causes overheating or no heat, typically R400–R700 to fix
• Pressure relief valve (PRV) dripping — a safety device that needs replacement, usually R600–R1,200
• Leaking inlet or outlet connections — a plumbing fix rather than a geyser fault, often R500–R800

If your geyser is under 8 years old and the fault is any of the above, repair is almost always the better financial decision. A replacement geyser plus installation in Gauteng typically runs between R8,000 and R18,000 — so a R700 element replacement on a 5-year-old unit makes obvious sense.

When Replacement Makes More Sense

• The unit is over 10 years old — even a successful repair is likely to be followed by another fault within 12–18 months
• There is visible tank corrosion — rust-coloured hot water is a sign the inner lining has failed
• The tank itself has cracked or is leaking at the body — this can't be repaired
• Multiple faults in a short period — if a unit has needed two or more repairs in the past year, replacement is usually cheaper over 3 years

What Your Home Insurer Needs to Know

If you're replacing a geyser and want to claim from your home insurance, your insurer will almost certainly require a valid PIRB Certificate of Compliance (CoC) — issued only by a registered plumber. An unregistered plumber cannot issue one.

What Does a Geyser Replacement Cost in Gauteng?

• 100L electric geyser, supply and install: R8,000–R11,000
• 150L electric geyser, supply and install: R9,500–R13,000
• 200L electric geyser, supply and install: R11,000–R16,000
• Solar geyser (flat plate), supply and install: R18,000–R28,000
• Heat pump water heater, supply and install: R22,000–R35,000

These figures include the unit, labour, a new drip tray if required, and the PIRB Certificate of Compliance.