Water meter movement when fixtures are off
Pipe Repairs & Leak Detection
Water Leak Detection Under Concrete
Non-invasive leak detection for hidden pipes, underground lines and concrete slabs.
Specialist Sydney Plumbers
A Practical Solution Based on the Real Cause
Hidden leaks can run behind walls, underground or below a concrete slab without obvious surface water. We use a systematic diagnostic process to narrow down the source before repair work begins.
APT Plumbing uses professional leak-detection and pipe-repair methods for accessible, concealed, underground and under-slab plumbing.
Our focusA more accurately located hidden leak, reducing avoidable demolition and ongoing water loss.
When to Call
Signs You May Need This Service
Early attention can limit water damage, disruption and the cost of a larger plumbing failure.
Unexpected increases in water bills
Warm, damp or discoloured floor areas
Pressure loss or the sound of running water
What We Do
What’s Included in Our Approach
We trace hidden faults accurately, limit unnecessary damage and provide a repair plan suited to the pipe material and property.
- Water meter and pressure checks
- Targeted leak-detection testing
- Location of the likely failed section
- Repair options designed to limit unnecessary opening
How We Work
From Assessment to Completion
- 01
Understand the fault
We review visible damage, water usage changes, pressure loss and the affected areas of the property.
- 02
Pinpoint the source
Testing and diagnostic equipment are used to narrow down the leak or damaged pipe location.
- 03
Complete the repair
We isolate the affected section and repair or replace compromised components with minimal disruption.
- 04
Pressure-test and check
The repaired system is tested for sound operation and the next maintenance steps are explained.
Helpful Answers
Frequently Asked Questions
How do I know whether water leak detection under concrete is the right service?+
Tell us the symptoms, where they are occurring and how long the issue has been present. Our team can confirm the most suitable next step.
Can APT Plumbing inspect the issue before work starts?+
Yes. We assess the condition and scope first, then explain practical options before approved work proceeds.
Do you work with strata, commercial and managed properties?+
Yes. APT Plumbing supports homeowners, businesses, strata managers and real-estate agencies across Sydney.
What should I do if the problem is urgent?+
Call 1800 262 131 and describe any active leak, overflow, gas concern or loss of essential service.
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