Australia's body for the leak-detection discipline: water and gas.
The Leak Detection Institute of Australia is establishing a single national standard for how leaks are found, with one accreditation that means the same thing in every state.
A not-for-profit peak body, forming now. The first of its kind in Australia.
Why the Institute exists
One discipline. Eight regimes. No common standard.
Leak detection is practised across all eight Australian states and territories, but the rules that govern it are set eight separate times. A technician's standing, and the assurance a customer receives, can change the moment they cross a border. There is no national quality mark for the discipline, and until now, no dedicated body to set one.
The Institute exists to close that gap: a single, portable accreditation (Accredited Leak Detection Technician and Accredited Business) recognised consistently across the country, so insurers, strata managers, builders and homeowners have one clear standard to rely on wherever the work is done.
What the LDIA mark stands for.
Accreditation is a signal you can trust before the work begins. When a technician or business carries the LDIA mark, it means they have met a defined competency standard for the detection discipline, agreed to a code of conduct, and hold the insurance cover the Institute requires. The mark is portable: it means the same thing in Perth as it does in Brisbane.
For a homeowner or an insurer, that turns an unfamiliar trade into a known quantity. For a technician, it turns skill into something a customer can recognise on sight.
A defined competency standard
Accredited members are assessed against a standard built specifically for non-invasive detection: acoustic, thermal, tracer-gas, correlation, moisture and camera-based methods.
A code of conduct
Every accredited member agrees to how the Institute expects the work to be scoped, reported and handed on, including where a licensed trade must take over.
Insurance you can verify
Accreditation carries professional indemnity and public-liability minimums, so the assurance behind the mark is backed, not assumed.
The bright line
Members locate. Licensed trades repair.
The Institute draws a clear line through every accreditation it grants. Members are accredited to find and diagnose leaks using non-invasive methods — locating the problem without cutting, repairing or pressure-testing. The repair itself is carried out by an appropriately licensed plumber or gasfitter.
Members locate. Licensed trades repair. All gas pressure and leak testing and make-safe work is carried out by a licensed gasfitter.
Gas safety
Gas is handled with particular care. All gas pressure and leak testing, and all make-safe work, is carried out by a licensed gasfitter and must comply with AS/NZS 5601.1. There are no exceptions to this in an LDIA accreditation.
This describes the Institute's accreditation policy and best practice for the discipline. It is general information, not legal advice. Licensing requirements differ by state and territory and change over time — verify current obligations with the relevant regulator.
Built for two audiences, working from one standard.
For technicians and businesses
Accreditation gives your skill a name a customer already recognises. Get assessed, get listed in the national directory, and be found by the insurers, strata managers and homeowners looking for a detection specialist they can trust. As a founding member, you help shape the standard the discipline will be held to.
Become a Founding MemberFor consumers, insurers and strata
When you need a leak found before anything is opened up, look for the LDIA mark. It tells you the technician meets a national competency standard, works to a code of conduct, and carries the right insurance. As accreditation opens, the directory will let you find a mark-holder in your area.
Find an Accredited TechnicianAligned to the standards the work already answers to.
The Institute does not duplicate existing standards. It accredits practitioners to work within them, and advocates for a dedicated national guideline on non-invasive building leak detection, which Australia does not yet have.
AS/NZS 3500
Plumbing and drainage: water services and testing.
AS/NZS 5601.1
Gas installations, including methods of locating gas leaks and pressure and leak testing. Legally binding in some states.
AS 5488
Classification of Subsurface Utility Information: the standard for locating underground services.
LDIA aligns to, and does not own or administer, these standards. Listing them implies no endorsement of the Institute by any standards body.
Australia has no leak-detection body. We're building it. Be one of the first.
The Institute is forming now, which means the people who join first help define what accreditation requires, how the standard is upheld, and how the discipline is represented to regulators and insurers. Founding members are recorded as such, and are first to be listed in the national directory as it opens.
If you detect leaks for a living, this is the moment your standing in the discipline is decided. Register your interest to become a founding member.