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Locating a Hidden Water Leak – Merewether
How our team traced a hidden water leak in Merewether with acoustic detection and pressure testing, then cut in a control valve on the same visit.
Background
A Merewether property owner called us about water they couldn’t account for. Every fixture checked out, nothing was visibly wet, and the usage kept climbing. That combination is what leak detection exists for.
A hidden leak doesn’t stay hidden because it’s hard to fix. It stays hidden because nobody has looked for it with the right equipment. Without locating it first, the only options are cutting into walls or digging up ground and hoping to land on it, so the homeowner booked us in to find it properly before any repair was quoted. The first hour of specialist leak locating is included in the call-out, so the diagnostic work was covered from the start.
Inspection and Diagnosis
We started at the water meter, then worked through the fixtures and the visible pipework. The meter kept moving with everything shut off, which confirmed a genuine loss rather than a usage spike or a slow-filling cistern.
Nothing on the surface gave the position away. That put the loss in a concealed run of pipework rather than a visible fitting or fixture. Concealed pipe runs are where it can’t be seen or reached, buried in the ground or sitting inside a wall or slab, so the exact point had to be traced before anything was opened up.
How we Located the Leak
We match the method to the symptom rather than running every piece of equipment on every job. On this one, three did the work:
- Pressure testing: We isolate sections of the supply line and test the pressure on each one, which confirms the run that has failed and rules the rest out. It’s how an underground or slab leak gets verified before anyone digs.
- Acoustic leak detection: Water escaping a pressurised pipe makes a distinct sound, and it carries through concrete and tile. Our listening equipment amplifies it, which narrows the position from a run of pipe down to a small working area.
- Moisture readings: Moisture meters measure how far water has travelled through floors, walls and subfloor. They separate an active leak from an old stain, so the repair targets the source instead of the mark it left.
We confirmed the position from more than one reading before marking it. That matters on a concealed leak, because a repair that lands close to the leak still means opening up twice.
Working this way keeps the job non-invasive. Nothing gets opened up on a guess, which means less damage to the surrounding surface and a smaller repair overall.
Our Fix
With the leak marked, we cut in a control valve on the same visit. That gives an isolation point on the line, so a section of the supply can be shut off on its own instead of shutting down the whole property.
We documented the position of the leak, its depth and the route of the line, which meant the repair could be quoted in writing with no second investigation needed.
Result
The leak was traced to a small working area with no walls opened and no guesswork excavation. The property owner finished the visit with a marked location, a written scope and a control valve in place for isolation.
Detection is usually the smallest part of a leak job and the part that decides how big the rest of it gets. A hidden leak left to run doesn’t stay the same size, and the repairs at the far end of that, burst pipes and failed sections of main, cost considerably more than tracing the problem early.
Losing Water and Can't Find the Leak?
If your usage has climbed with nothing obvious to show for it, or damp is appearing with no visible source, we can trace it before anything gets opened up. We handle leak detection in Merewether and across the Newcastle suburbs, with the location marked and the repair quoted in writing.
Call us on 02 4006 8330 or book a service here. Our leak detection case studies cover the range of this work, from hidden water leaks through to subfloor and pool leaks.
Leak Detection in Action
What Sets Leak Hunters Apart
Why Choose Leak Hunters?
Leak Hunters are your trusted local plumbing experts servicing Newcastle and surrounding suburbs. We are dedicated to providing top-quality plumbing solutions with a focus on customer satisfaction and exceptional workmanship.
Licensed & Insured
We work under contractor licence #156870C, verified with NSW Fair Trading. Fully insured on every job.
25 Years of Local Experience
Our team has been finding and fixing leaks in Newcastle homes for over 25 years. When others can’t find the leak, we do.
Payment Plans for Large Jobs
For larger jobs like leak detection, drainage work, and shower repairs, we offer flexible payment plans. Ask us when you call.
Transparent, Fixed Pricing
A clear, upfront quote before any work begins. What we quote is what you pay. No hidden charges, no invoice surprises.
Specialist Detection Equipment
Thermal imaging cameras, acoustic equipment and moisture meters to locate leaks others can’t find.
10% Off Senior Discount
We offer discounts for eligible customers and selected services. Call our team to find out what’s currently available.
Newcastle, the Central Coast & Port Stephens
Areas Our Team Services
Every job follows the same approach, whether it’s in Newcastle, on the Central Coast or in Port Stephens: find the source, quote it in writing, and fix it so it stays fixed. The areas our team covers are below.
Merewether | Bar Beach | Cooks Hill | Hamilton | New Lambton | Kotara
Our home base, where most of these jobs happen, with leak detection and repairs across the city, the beaches and the Lake Macquarie side.
Terrigal | Erina | Tuggerah | Wyong | Avoca Beach | The Entrance
The same diagnostic approach from Gosford through the coastal suburbs, finding the source first and quoting the work in writing.
Raymond Terrace | Nelson Bay | Shoal Bay | Soldiers Point | Corlette
We bring the same standard shown in these case studies to the bay and peninsula suburbs, from leak detection to repairs.
Losing Water With No
Leak in Sight?
Tell us what you’ve noticed and we’ll confirm the next available leak detection appointment. Once the leak is located, we quote the repair in writing before any work starts.
