Cairns Leak Detection
Specialist acoustic leak detection that repeatedly finds what other plumbers couldn't — and explains every step while doing it.
That transparency extends to pricing: customers repeatedly note they were given a realistic range before the team arrived, and the final invoice came in at or below that range. Across 122 Google reviews, the business draws a notably high share of customers who had already tried another plumber without success, which speaks to the practical advantage of specialist leak-detection equipment over general plumbing tools. If you're dealing with an unexplained water bill, a council excess-usage notice, or a leak under concrete or paving, this crew is worth booking even if the next available slot is a few weeks out — multiple reviewers said the wait was worth it.
Their work
What it's like working with them
Based on a sample of Google reviews (122 total)
“constant clear explanations about the process all the way along”
“no hidden surprises with quote and invoice”
“fixed the leak and tested for any other leaks on my property in under 1.5 hours”
“I got these guys out after using someone else initially”
What they help with
Based on what their customers hired them for
How they stack up
Context from 385 plumbers in Cairns
Credentials & background
Sourced from 5 public records so you don't have to look them up yourself
About Cairns Leak Detection
Cairns Leak Detection specialises exclusively in concealed water leak detection and repair — not general plumbing — which means they bring dedicated acoustic sensor equipment to jobs that defeat ordinary plumbers. The core team is Darcy and Josh (described by multiple reviewers as brothers), with Peter also appearing on jobs; Darcy consistently draws praise for walking customers through each diagnostic step, explaining smart meter readings, and advising on council rebate applications for concealed leak losses — information most homeowners don't know exists. Their leak-finding work routinely involves cutting concrete slabs, digging under driveways and tiled patios to reach pipes buried a metre or more underground, and they've repeatedly fixed issues left behind by other tradies who couldn't locate the source. Jobs are typically quoted with a price range before arrival, completed in a single visit, and finished with site cleanup thorough enough that several reviewers said they couldn't tell where the work had been done. They're particularly well-suited to homeowners who've received a high water bill or a council excess-usage notice and need someone who can pinpoint the problem fast rather than guess — several customers came to them after a first plumber failed to find the leak.
Best for: locating concealed leaks under concrete or underground piping, responding to council high-water-usage notices, fixing leaks that a previous plumber couldn't find, and getting a single-visit detect-and-repair rather than a staged multi-appointment process.
Location
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Claim This Profile — Free →Common questions about Cairns Leak Detection
What types of leaks does Cairns Leak Detection handle?+
They specialise in concealed and underground leaks that are difficult to find without specialist equipment — pipes buried under concrete slabs, driveways, tiled patios, and paths up to a metre or more deep. They use acoustic sensors to pinpoint the leak location before digging, which minimises unnecessary excavation. Reviewers also mention them fixing toilet leaks and replacing taps while on-site for the primary job. General maintenance plumbing doesn't appear to be their core focus.
How does their pricing work — will I know the cost before they arrive?+
Yes — Darcy provides a price range during the initial phone call before any visit is booked. Across the reviews we analysed, customers consistently reported that the final invoice came in at or below that estimate, with no surprise charges. One reviewer noted the bill was under $300 for a job that resolved a complex noise issue and included fixing two additional minor problems on the spot. Getting a ballpark figure upfront appears to be standard practice for this business.
How quickly can they respond, and do they offer same-day or emergency appointments?+
Response times vary — some reviewers got next-day appointments, while one reviewer noted waiting three weeks during a busy period. The business does appear to accommodate urgent jobs when slots allow; several customers with council excess-usage notices or spinning water meters were fitted in quickly. If your situation is urgent, it's worth calling directly to explain the circumstances, as reviewers mention the team being flexible when the need was pressing.
Do they help with the council rebate process for concealed leaks?+
Yes — this is something Darcy raises proactively on-site, not just if you ask. Multiple reviewers mention being told they could apply to Cairns Regional Council for a possible discount on inflated water bills caused by concealed pipe leaks — information most customers said they had no idea about. The business website is also noted to have guidance on claiming rebates from Cairns Water. If your bill spiked before the leak was found, ask Darcy about this during the job.
What happens if the leak is under concrete — will they need to break up a large area?+
Acoustic detection lets them pinpoint the leak location before any digging starts, so the excavation is targeted rather than exploratory. Reviewers with leaks under concrete driveways, tiled patios, and slabs consistently note that only a small area was cut or excavated — one customer reported just two tiles removed for a patio repair. After the fix, the team fills and cleans up the disturbed area, and several reviewers said the site looked as good as before the work.