Leak detection for Warragul homes

A hidden water leak in a Warragul home usually shows up first as a water bill higher than the last one, a meter that moves when every tap is off, or a damp patch that will not dry. You can confirm most leaks yourself with a simple meter test before calling anyone. If the meter moves, a plumber can then use listening gear, thermal imaging or pressure testing to find where the water is going without opening up walls on a guess.

Your enquiry goes to an independent plumbing business that offers leak location. It decides how to look for the leak, gives you its price and does the repair if you agree.

What are the signs of a hidden leak?

Slow leaks are easy to miss because nothing is visibly pouring. Watch for these:

• a water bill noticeably higher than the same period last year, with no change in household use
• the water meter dial or digits moving when nothing is running
• a damp or warm patch on a floor, often near the hot water pipes
• tiles lifting, grout going dark, or skirting boards swelling near a shower
• a musty smell in a cupboard, or mould appearing on one wall
• a patch of lawn or garden that stays green and soft through a dry spell
• the sound of running water when the house is quiet
• low water pressure at several taps at once

A single dripping tap or a toilet that keeps running is a visible leak, not a hidden one, and the tap and toilet repairs page deals with those.

How do I do a water meter test?

This is a general check that most households can do in a few minutes. It tells you whether water is escaping somewhere between the meter and the taps.

1. Turn off every tap, and make sure the washing machine, dishwasher, irrigation and any evaporative cooler are not running.
2. Check that no toilet cistern is refilling.
3. Find the water meter, usually near the front boundary, and note the reading. Take a photo of the dial.
4. Wait at least 30 minutes without using any water. Longer is better.
5. Read the meter again. If the reading has changed, water is going somewhere.

If you can isolate the house with a valve while leaving the meter live, you can sometimes tell whether the leak is in the underground pipe to the house or inside the home. Put both readings and the times in your enquiry. A plumber who sees “meter moved by this much in 40 minutes, all fixtures off” has a far better idea of the leak’s size than one who only hears “bill is high”.

Which methods do plumbers use to find a leak?

The hipages guide to leak detection costs lists several methods. In plain terms:

Method	How it works	Suited to
Visual inspection	Looking for damp, stains and drips	Obvious leaks only; misses hidden or slow ones
Acoustic detection	Sensitive microphones pick up the sound of water escaping a pressurised pipe	Leaks in water supply pipes under floors, slabs or lawn
Thermal imaging	A camera shows temperature differences behind walls or ceilings	Hot water pipe leaks and wet patches inside walls
Pressure testing	A section of pipe is isolated and pressurised to see if it holds	Confirming which run of pipe is leaking
Dye testing	Coloured dye is put into the system to trace where water goes	Cisterns, showers and some drain leaks
Ground penetrating radar	Radar maps what is under the ground	Locating buried pipes and some underground leaks

A provider will often combine two or three of these. Pressure testing narrows the search to one section, and acoustic gear or thermal imaging then pinpoints the spot.

What should a careful plumber check first?

A provider who locates leaks properly will usually:

1. Ask for your meter test results and recent water bills.
2. Repeat the meter test on arrival.
3. Isolate sections of the system to narrow the search.
4. Use the least destructive method that can find the leak before cutting anything.
5. Show you the evidence, such as the thermal image or pressure gauge reading.
6. Quote the repair separately from the detection.

A careful plumber will not start pulling up tiles or breaking into a slab until the leak has been located with reasonable confidence. If the leak turns out to be a failed shower seal rather than a pipe, they should say so and tell you who handles that work.

Is a shower leak a plumbing or a waterproofing problem?

It can be either, or both. A leaking mixer, pipe or waste outlet behind the wall is a plumbing fault. Water getting through grout, tile joints or a failed membrane under the tiles is a waterproofing fault, and fixing it properly may need a builder or waterproofer as well as a plumber. Signs that point to waterproofing include damage that only appears after showers, swollen skirting outside the shower, and staining on the ceiling below an upstairs bathroom. Ask the leak detection provider to tell you which it is before any repair is quoted.

What if the leak is on Gippsland Water’s side of the meter?

If water is bubbling up in the nature strip, leaking at the meter itself, or the leak appears to be in the street, report it through Gippsland Water’s fault, leak or burst page. The online form has separate options for a water meter leak and a water leak, and you can attach photos. Gippsland Water says on that page that it wants to hear about suspected leaks even on public land. Leaks after the meter, on the house side, are generally a job for your own plumber.

How much does leak detection cost?

There is no Gippsland band for leak location in the sources we use, so this figure is a national guide. The hipages guide, updated January 2026, puts a leak detection visit at $168 to $400. That covers finding the leak, not repairing it. Costs rise for hard-to-reach spots, special equipment and after-hours work, and the repair is quoted on top. Our Warragul plumbing cost guide shows how this compares with other jobs. Once your meter test is done, you can book a leak search through the enquiry form and ask for detection and repair to be priced separately.

Why do leaks matter in a wet climate like Warragul’s?

Warragul’s wet winters can hide a leak. A soggy patch of lawn is easy to put down to rain, and a damp subfloor is easy to blame on the weather. That is why the meter test is more reliable than looking at the yard in winter. Underfloor leaks left for months can lead to mould and timber damage, so check the meter if your bill jumps, whatever the season. The Warragul area page has more on the town and its services.

If water is suddenly pouring from a pipe, this is no longer leak detection. Go straight to the shut-off steps on the burst pipe page.

Next step

Run the meter test and write down both readings and the times. Photograph any damp patches, stains or lifting tiles, and note where the meter is. Then send your leak details to a local plumber with your suburb, your last two water bill amounts if you have them, and whether the house is on a slab or has a raised timber floor.

Send a job enquiry