Leak detection cost is one of the most common questions we get, and the honest answer is that it varies with how hard the leak is to find. Anyone who quotes a single flat number over the phone without knowing whether the leak is a visible dripping fitting or a hidden under-slab failure is guessing. This page lays out realistic Gold Coast ranges for 2026, explains what drives the price, and separates the cost of finding the leak from the cost of fixing it, because they are two different things. For the wider context on how detection works, our guide to water leak detection on the Gold Coast is the place to start.
What leak detection actually costs in 2026
Treat these as a guide and get a quote for your situation. As a rough picture of a non-invasive leak detection service call on the Gold Coast:
- Simple, accessible leak (visible fitting, obvious source, quick to confirm): roughly $200 to $300
- Standard hidden leak needing acoustic listening and a meter and pressure check: roughly $300 to $450
- Complex hidden leak needing acoustic correlation, thermal imaging or tracer gas across a larger area: roughly $450 to $600 or more
The figure climbs with the difficulty of the find, not with how dramatic the leak looks. A small, frustrating, deeply buried leak can take longer to pinpoint than an obvious one, which is why the equipment and time involved drive the price more than the size of the leak.
The free checks to do first
Before you pay anyone, two checks cost nothing and sometimes solve the problem outright. The meter test confirms whether a leak exists at all, turn everything off and watch the meter, which we walk through on how do I know if I have a water leak. The dye test on a toilet (a few drops of food colouring in the cistern, wait 30 minutes, check the bowl) catches the single most common household leak for free. If those two checks find a running toilet or a dripping tap, you have saved yourself a detection fee entirely.
What drives the price up or down
How accessible the leak is
A leak at a visible fitting under a sink is cheap to confirm. A leak buried under a concrete slab, behind tiled walls, or under a paved courtyard is harder to reach and harder to pinpoint, so it sits higher up the range. The more the leak is hidden behind finished surfaces, the more equipment and time it takes to locate without tearing things apart.
How much equipment the job needs
A straightforward find might only need the meter, a pressure test and an acoustic listening stick. A difficult one might need acoustic ground microphones, a correlator to triangulate the position along a buried pipe, thermal imaging to read the heat of a hot water leak through a wall, and in the hardest cases tracer gas pumped into the line and followed with a detector. Each layer of technology added is more time and more specialised gear, and that is reflected in the cost.
The size and layout of the property
A small unit with a simple plumbing layout is quicker to work through than a large home with multiple bathrooms, a long buried supply run and an irrigation system. More pipework to isolate and test means more time on site.
Acreage and hinterland travel
For properties out in the hinterland or on acreage, there can be a modest travel component on top, given the drive time involved. We flag that up front rather than springing it on you.
Detection cost versus repair cost, the part people get caught out on
This is the most important thing to understand about leak detection pricing. The detection fee buys you the location of the leak. It does not include fixing it. Once we know exactly where the leak is, we quote the repair separately, because the repair depends entirely on what we find and where.
- Detection: finding the exact spot, roughly $200 to $500 or more as above.
- Repair: exposing and fixing the failed pipe, which varies widely. A simple accessible repair might be a few hundred dollars. A buried external pipe that needs excavating, or an in-wall or under-slab section that needs exposing, repairing and pressure testing, costs more.
- Reinstatement: making good any wall, floor or paving that had to be opened to reach the leak. This is a separate line again and depends on the finish.
The reason we keep these separate is honesty. We cannot price the repair until we know where the leak is and what it has done, so quoting detection and repair as one lump sum up front would just be a made-up number. You get a real detection price first, then a real repair price once we have found it. Where the leak turns out to be a failed section of pipe, our burst pipe repair service handles the fix.
Why paying to detect first is cheaper than guessing
It can feel like detection is an extra cost on top of the repair you were always going to pay for. In practice it is the opposite, it usually saves you money. The alternative to detection is exploratory demolition, opening up wall after wall or breaking up sections of slab hunting for the leak. That is slow, destructive and expensive, and every square metre opened is more reinstatement cost. Non-invasive detection pinpoints the leak so we cut one small access hole instead of five guesses. On a hidden leak, the detection fee almost always pays for itself in the demolition and repair work it avoids.
How insurance fits in
If the leak has caused damage that you are claiming on insurance, the detection and repair are often part of the claim, and many insurers actually require professional leak detection and a cause-of-loss report before they will settle. We provide an itemised invoice and documentation set up for insurance, which makes the claim smoother. Worth checking your policy, because the detection cost you were worried about may be recoverable as part of the loss.
What you get for the fee
A proper leak detection visit is not just someone poking around. You get a systematic process, meter confirmation that a leak exists, isolation testing to narrow down the section, the right detection equipment for the situation to pinpoint it, a clear explanation of where the leak is and what is causing it, and a written quote for the repair. You finish the visit knowing exactly what is wrong and what it will cost to fix, with no demolition done on a guess.
When to call
If your meter is ticking over with everything off and you cannot find an obvious dripping tap or running toilet, a detection visit is the next step and it will save you money over guesswork. If a pipe has burst and water is pouring out, skip detection, isolate the water at the meter and ring us, our emergency plumbing service runs around the clock. For anything else, get in touch and we will give you a realistic detection price for your situation, find the leak, then quote the repair honestly once we know what we are dealing with.