Perth's 24/7 Leak detection specialists
Leak Detection
You Can Rely On
Don't let inexperience affect your peace of mind. Our trained & trusted team ensures small leaks don't lead to big damage.
Trusted for over 25 years to handle your Plumbing & Leak Detection needs, let us take it from here.
Trained, Tested, Trusted.
Worried about damp spots, unusually high water bills, or that faint sound of running water when everything’s turned off?
Don’t wait until the damage shows itself. At Expand Plumbing & Gas, we find leaks others can't. Our leak detection specialists use the latest non-invasive technology to locate leaks quickly and precisely. We act fast, treat your home with care, and help you avoid costly repairs so you can have complete peace of mind without the mess or guesswork.
SERVICES
Acoustic Leak Detection
The sensitive listening equipment locates leaks by listening for the sound of escaping fluid (water, air, or gas). This non-invasive method helps pinpoint hidden leaks without digging or unnecessary damage to your property.
Thermal Imaging
Thermal imaging services helps you see what your eyes can't. It involves using a thermal camera to detect temperature variations in walls, floors, and ceilings to find hidden leaks without cutting into walls or floors.
Tracer Gas Leak Detection
Tracer gas leak detection finds what other's cant. Introducing a non-toxic, odourless gas into your pipes, this highly sensitive method is used to find even the smallest leaks with precision. Perfect for complex or long standing issues that haven't been solved.
Natural Gas Leak Detection
Smelling gas or feeling unsure about a possible leak? Don't risk it.
Natural gas leak detection identifies dangerous leaks fast, keeping your home or business safe from hazards and health risks. We act quickly so you can feel at ease again.
Fire Leak Detection
Ensure your fire system works when it matters most. Indications of a drop in pressure - pump switching on and off - can signal a problem, such as a leak or undersized piping in your commercial property. Being proactive now, could save you later.
Pipe Renewal
Peace of mind for the long-term.
Renewing sections of the plumbing system ensures a long-lasting fix rather than repeated temporary repairs. It's a proactive solution that helps protect property from repeated call outs and ongoing damage.
TESTIMONIALS
"Expand to the rescue!"
"Thank you Alec and Sara!
I know diddly squat about water pipes, so when our front water meter was going off like a frog in a sock, and it was almost 5pm - needless to say, I got a bit panicked.
The nicest, fastest and professional service I have had in a long time. Expand to the rescue!"
- Nicole Schnitzler
"Recommend unreservedly"
"Outstanding and prompt service. Staff are friendly and knowledgeable. Recommend unreservedly."
- Glenn
"Their service was very professional"
"Ben and Ryan helped fix a leak in my kitchen caused by cracks in the drain. We also discovered that the drain was blocked, and they assisted with clearing the blockage. Their service was very professional.
Thank you very much!"
- Claud Lin
About us
Experience you can rely on, Service you can trust
We’re a family-run business built on trust, precision, and genuine care. At Expand Plumbing & Gas, we use advanced technology and specialised tools to deliver fast, accurate, and non-invasive leak detection and plumbing solutions. Every job - from hidden leaks to complex system checks - is handled with the same commitment to quality and care.
Driven by our mission to raise the standard of plumbing across Western Australia, we’re available 24/7 to support homes and businesses when they need it most. Our licensed emergency plumbers don’t just get the job done, we make the process easier, more efficient, and more reliable.
When others don’t answer, we do.
STILL NOT SURE?
Frequently Asked Questions
Question 1: How do I know if I have a hidden leak?
Common signs include unusually high water bills, the sound of running water when taps are off, smell of gas, hot water unit rumbling, or damp patches on walls or ceilings. If you notice any of these, its best to get it checked - our leak detection specialists can pin point the source quickly.
Question 2: Is leak detection safe for my home or business?
Absolutely. We use non-invasive techniques like acoustic sensors, thermal imaging, and tracer gas to detect leaks without damaging your property. It's fast, safe and incredibly accurate.
This also means we aren't creating unnecessary damage trying to locate the leak.
Question 3: What if the leak turns out to be serious, can you fix it on the spot?
Yes - in most cases, we can. Our licensed plumbers arrive fully equipped to handle most repairs on the spot, including that of which follow a leak detection.
If the job requires more extensive work, we'll explain your options and get started with a solution that works for you.
Question 4: Is leak detection expensive, and what does insurance cover?
Leak detection is a specialised service, but it's more affordable than the damage an undetected leak can cause.
Whilst costs can vary depending on the complexity, location of the leak and size of the network, we'll always provide a clear plan of action once we've inspected the site. Modern leak detection methods are non-invasive, utilising technologies like thermal imaging and acoustic sensors, which can also save on repair costs.
In many cases, if the leak has caused property damage or is linked to a burst pipe, your property insurance may cover part of the costs. We recommend you speak to your policy provider for an accurate breakdown specific to your individual cover.
Question 5: How do I know when a leak is an emergency?
A leak becomes an emergency when it's causing visible damage, increasing rapidly, or posing a risk to your property or safety. Signs include water pooling indoors, walls or ceilings bulging or cracking, the sound of running water with no clear source, sudden drops in water pressure, or unexplained spikes in your water bill.
If you suspect a gas leak, smell anything unusual, or notice water near electrical outlets - that’s a serious hazard and should be treated as urgent.
Even small leaks can escalate fast, so if you’re unsure, it’s always safer to call.
Our licensed plumbers are available 24/7 across Perth to assess and handle emergencies quickly and with specialist tools - no guesswork or unnecessary damage.
Address: 5/504 Marmion St, Booragoon WA 6154
Hours of Operation
Technician Hours: Mon–Fri, 7am–3:30pm
Office Hours: Mon–Fri, 9am–3:30pm
Emergency Service: 24/7
After-hours rates apply outside standard hours.
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