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Leak Detection Henderson

Hidden leak in your Henderson home? Old plumbing hides leaks behind walls for months. We find them fast and fix them before they cause serious damage.

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Certified Plumber
Same-Day Service
17+
Years Experience
Auckland Wide

Leak Detection Services in Henderson

Henderson has a wide mix of housing — older state homes, 1970s–80s brick and tile, and newer townhouse developments. After the 2023 floods, many Henderson properties also have plumbing that took a hit from water damage, ground movement, and sediment contamination. Leaks can develop months or years later as weakened joints and corroded pipes finally give way.

Properties around Lincoln Road, Henderson Valley Road, and the streets near Opanuku Stream are particularly prone to underground and slab leaks. Clay soils shift, tree roots invade, and aging infrastructure does the rest. Even newer builds can develop leaks from poor workmanship or settling.

We approach leak detection in Henderson methodically. Pressure test, isolate, locate, and fix — with minimal disruption to your home. Find it, fix it, move on.

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

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

Damp patches on walls or ceilings — moisture appearing where it should not be. Common in villas with lath and plaster.

Sound of running water — when everything is turned off, you should not hear water flowing.

Musty smell or mould — persistent dampness behind villa walls breeds mould you can smell before you see it.

Drop in water pressure — a leak in the supply line reduces pressure to the rest of the house.

Wet patches in the garden — a soggy area in the lawn or path that never dries, even in summer.

How We Find Leaks

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

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 Henderson?

We use a combination of pressure testing, visual inspection, and targeted investigation to locate leaks accurately without unnecessary damage to your home.

How much does leak detection cost in Henderson?

We charge a fixed callout fee to attend, investigate, and locate the leak. The repair cost depends on what we find. We will always tell you the cost before we start any repair 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 behind walls, under floors, and in underground pipes are common in Henderson. The sooner you find it, the less damage and waste.

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Last updated: March 2026