// Leak Detection
Leak detection & repairs,
without the guesswork
without the guesswork
Hidden leaks can quietly damage walls, floors and foundations while driving up your water bill. Using professional leak detection equipment, we accurately locate the source and carry out lasting repairs before the problem becomes expensive.
// Overview
Leak Detection
& Repairs
& Repairs
Hidden leaks can cause thousands of dollars in damage before they become visible. Whether it's a leaking pipe behind a wall, beneath a slab or under your flooring, even a small leak can increase your water bills, create mould issues and damage your home's structure over time.
At JGH Plumbing, we use professional leak detection methods to locate leaks accurately without unnecessary digging, cutting or guesswork. Once we've identified the source, we can carry out the repair quickly to minimise damage and prevent the problem from getting worse. We provide fast leak detection and repair services throughout Cronulla, Caringbah, Miranda, Gymea and the wider Sutherland Shire.
What we handle
Locating hidden leaks behind walls, ceilings and under floors
Leak detection for homes, units and commercial properties
Investigating unexplained increases in water bills
Burst pipe and damaged water line repairs
Tap, toilet, shower and fixture leak repairs
Investigating damp patches, mould growth and water staining
Complete leak repair solutions once the source has been identified
Servicing Cronulla, Caringbah, Miranda, Gymea, Kirrawee, Sylvania, Engadine, Menai and surrounding Sutherland Shire suburbs
Get a free quote today
Tell us about your job and we'll get back to you fast.
Thanks — we'll be in touch soon! 😊
James will get back to you as soon as possible. We aim to respond to all enquiries within a few hours during business hours.
For emergencies, please call us directly:
📞 0421 188 367 — available 24/7
// Good to Know
Signs you have a hidden leak
Your water bill jumped
An unexplained spike usually means water is escaping somewhere you can't see.
Damp patches or peeling paint
Walls, ceilings or floors showing moisture, bubbling or staining.
Mould or a musty smell
Persistent damp from a slow leak is a common, hidden cause of mould.
The sound of running water
Hearing water move when every tap is off is a classic leak signal.
Warm spots on the floor
A warm patch can point to a leaking hot water line under the slab.
Low water pressure
A leak in the supply line can quietly drop pressure throughout the house.
// Why JGH
Why locals choose us for
leak detection & repairs
leak detection & repairs
Precise, not destructive
We locate the source accurately before any repairs begin, reducing unnecessary damage to walls, floors and finishes.
Detection & repair
We don't just identify the problem — we can repair the leak too, saving you time and the hassle of organising multiple trades.
Save money long-term
Early leak detection helps avoid major water damage, mould growth and costly structural repairs down the track.
Based in Cronulla, servicing the Sutherland Shire, Greater Sydney and the Illawarra — trusted by local homeowners and businesses.
// FAQs
Leak Detection & Repairs —
your questions answered
your questions answered
How do you find a leak you can't see?
We use professional leak detection methods and follow the evidence — water meter activity, damp areas, pressure changes and visible signs of moisture — to accurately locate the source before carrying out repairs.
My water bill suddenly increased. Could it be a leak?
Yes. Unexpected increases in water usage are one of the most common indicators of a hidden leak. We can investigate the cause and repair the issue before it becomes more expensive.
Will you need to cut open walls or floors?
Our goal is to minimise damage by locating the leak accurately first. If access is required, we keep it as targeted and non-invasive as possible.
Is a small leak worth fixing straight away?
Absolutely. Small leaks often cause the biggest hidden damage over time. Early detection can prevent mould, timber damage, structural issues and expensive repair bills.
Can you help with burst pipes?
Yes. Burst pipes are treated as a priority. Turn the water off at the meter if possible and call us straight away for urgent assistance.
Do you repair the leak after finding it?
Yes. We provide both leak detection and repair services, so you only need one trusted plumber from diagnosis through to completion.
Need a plumber
you can count on?
you can count on?
Speak with James
0421 188 367