Leak Detection One Tree Hill

Leak Detection Services in One Tree Hill

One Tree Hill's character villas and 1930s-1950s bungalows are some of Auckland's most desirable homes — but the plumbing behind the walls can be 70-90 years old. Original galvanised and copper pipes, lead-wiped joints, and clay drain connections that have been shifting in One Tree Hill's volcanic soil for decades.

Properties on Manukau Road, near Cornwall Park, and off Campbell Road regularly present with hidden leaks. The volcanic basalt terrain means underground pipes run through rocky ground that can damage pipes during soil movement, and mature trees send roots into every available pipe joint.

In a suburb where character homes are being renovated to a high standard, water damage from a hidden leak can undo thousands of dollars of work. We find leaks fast using pressure testing and systematic investigation — then fix them with minimal disruption to your home.

Types of Leaks We Find & Fix

Hidden Pipe Leaks

Leaks inside walls and ceilings from corroded copper, failed joints, or pinhole corrosion. Common in older Auckland homes.

Slab & Underground Leaks

Water pipes running under concrete slabs or through the ground can leak for months before you notice. We locate and repair or reroute.

Hot Water System Leaks

Leaking cylinders, weeping valves, and dripping relief pipes. We diagnose whether it is a repair or replacement job.

Toilet & Fixture Leaks

Silent toilet leaks waste thousands of litres. Leaking shower trays and basins cause floor rot. We find the source and fix it.

Signs You Have a Hidden Leak

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Unexplained high water bill — the #1 sign of a hidden leak in One Tree Hill homes.

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Damp or discoloured walls — water is getting in from somewhere.

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Sound of running water — when everything is turned off, you shouldn't hear water.

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Warm spots on floor — could be a hot water pipe leaking under the slab.

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Musty smell or mould — persistent moisture behind walls breeds mould.

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Water meter spinning — turn everything off and check your meter. If it's still moving, you have a leak.

How We Find Leaks

Leak detection is part science, part experience. Here is how we approach it:

Visual inspection — we check the obvious places first. Cylinder, valves, visible pipework, fixtures, and fittings. Sometimes the source is right there.
Pressure testing — we isolate sections of your plumbing and test them under pressure. If a section loses pressure, the leak is in that zone. This narrows the search quickly.
Meter check — with everything turned off, we watch your water meter. If it is still ticking over, water is going somewhere it should not be.
Targeted investigation — once we have narrowed it down, we open up the smallest area possible to confirm the source and make the repair. We do not rip out walls unnecessarily.

Most leaks are found and fixed in a single visit. For complex underground or slab leaks, we may recommend rerouting the pipe above ground rather than digging up concrete — it is often faster, cheaper, and avoids the same problem recurring.

Frequently Asked Questions

How do you find hidden leaks in One Tree Hill?

We use a combination of pressure testing, visual inspection, and listening equipment to locate leaks accurately without unnecessary damage to your One Tree Hill home.

How much does leak detection cost in One Tree Hill?

Depends on the complexity. Simple leaks are straightforward. We'll give you a price before starting any work. Call 0800 322 322 for a quote.

Can you fix the leak once you find it?

Yes. We're a registered plumber — we find it AND fix it in the same visit where possible. No sending you to another tradesman.

My water bill is high but I can't see a leak — what should I do?

Call us. Hidden leaks underground, under slabs, and in walls are common in One Tree Hill. The sooner you find it, the less damage and waste.

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