Repair or Replace? How We Decide on Geysers, Taps and Pipes

The framework we actually use

It comes down to three questions: how old is it, what does the repair cost relative to a full replacement, and is the fault an isolated issue or a sign the whole unit is wearing out. We answer these honestly on site rather than defaulting to whichever option is more profitable for us, because a customer who trusts our advice is worth more than a single upsell.

Geysers

Under 6 years old with a single, isolated fault like a thermostat or element, repair almost always makes sense. Past 10 years, especially with any sign of tank corrosion or a second fault appearing, replacement is usually the better call. A repaired tank near the end of its life can still fail later, and a burst geyser costs far more in water damage than the unit itself.

Taps and fittings

Taps are usually worth repairing regardless of age, a worn washer or cartridge is a small, cheap fix compared to a full tap replacement. The exception is when the tap body itself is corroded or cracked, at which point repeated repairs become false economy.

Pipes

A single, isolated burst in an otherwise sound pipe run is worth repairing. But if we’re seeing repeated failures on the same line, especially with older galvanised or polybutylene pipe, that’s usually a sign the whole section is reaching the end of its life, and repeated patch repairs end up costing more than replacing the run once.

A rough rule of thumb

If a repair costs more than roughly 40-50% of a full replacement, and the item is already past the midpoint of its typical lifespan, replacement tends to be the better value over the next few years. This isn’t a hard rule for every situation, but it’s a useful starting point when weighing the decision.

Why we’d rather be upfront

We’d rather tell you a repair is the smarter option today, even if it means a smaller job for us, than push a replacement you don’t need yet. It’s the same reason we quote before starting and explain what we found, so the decision is actually yours to make with the full picture.

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