Underground Leak Detection Perth
Rating + “24/7 | WA-licensed | Family-owned
Why Underground Leaks
Are a Serious Problem
- Hidden leaks waste huge amounts of water
- Can undermine foundations and cause sinkholes
- Lead to damp gardens, mould, and health risks
- Cause unexpectedly high water bills
Detecting underground leaks early saves money and prevents major damage.
Signs You May Have an Underground Leak
- Water meter spinning when taps are off
- Sudden unexplained increase in your water bill
- Reduced water pressure inside your home
- Damp patches, soggy soil, or unusually green areas in the garden
- Cracks or movement in paving or driveways
Our Underground Leak Detection Process
Our WA-licensed plumbers use non-invasive methods to accurately locate leaks:
Acoustic
listening devices
detect sounds of escaping water underground
Thermal imaging cameras
spot temperature
differences caused by leaks
Pressure
testing
confirm leak presence in pipes
Moisture meters
detect damp spots without excavation
Why Choose
Expand Plumbing & Gas?
WA-licensed & fully insured leak specialists
25 years of experience
Family-owned Perth business
EXCELLENT Based on 181 reviews Posted on Wray AveTrustindex verifies that the original source of the review is Google. Thanks Scott for an excellent job installing my new gas stove-top and mixer tap. Really fast response and service. Much appreciated. AntonPosted on Lina PlattsTrustindex verifies that the original source of the review is Google. Great service with very friendly service men. ThanksPosted on Indrawati SunarjaTrustindex verifies that the original source of the review is Google. Had issue with having cold shower, was thinking of replacing the water tank (5 years old). Called Expand Plumbing (based on good reviews they have) and they sent Ben to our place within hours. He then simply clean the valve and we got hot water again with very reasonable fee (no call out fee). Ben was fantastic and explained to us the problems clearly. Highly recommended!!Posted on Delta SlugTrustindex verifies that the original source of the review is Google. Outstanding and prompt service. Staff are friendly and knowledgeable. Recommend unreservedly. Glenn BullCreekPosted on HSTrustindex verifies that the original source of the review is Google. Thankyou Alex for the quick response to send out the plumbers. Very efficient and nice people to deal with. Highly recommendedPosted on Nina AhmadTrustindex verifies that the original source of the review is Google. This is the second time using Expand plumbing. Both times the work was done promptly and professionally. Ben was very courteous and explained the fault and how it was to be fixed. Thank you for a great job and I will recommend you to others.Posted on A Triggered BoiTrustindex verifies that the original source of the review is Google. My gas System needed certification, and James was all over it. He double checked everything and made sure it was up to spec Service was excellent, on time and quick. Would absolutely recommend Plumbdog and their servicesPosted on nicole schnitzlerTrustindex verifies that the original source of the review is Google. Thank you Alec and Sarah! 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. Sarah sent me the easy-to-navigate booking form, and instantly, Alec was on his way. Alec figured it was a water corp issue and he very accommodatingly called them for me and explained the issue. The nicest, fastest and professional service I have had in a long time. Expand to the rescue!Posted on Shayne SmithTrustindex verifies that the original source of the review is Google. I recently had a fantastic experience with Expand Group Plumbing! They sent out a couple of young guys who were not only well-mannered but also efficient and professional. They got the job done quickly and made sure to clean up thoroughly before leaving. I couldn't be happier with the service I received. Highly recommend Expand Group Plumbing for anyone in need of reliable and quality plumbing services!Posted on Claud LinTrustindex verifies that the original source of the review is Google. 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!
Residential Underground Leak Detection Perth
Underground leaks in backyards, driveways, and gardens can quietly cost Perth families thousands in wasted water. Our team pinpoints leaks without damaging landscaping or hard surfaces.
Commercial & Strata Underground Leak Detection Perth
Leaks under carparks, warehouses, and strata complexes can cause costly structural problems.
Mini Case Study:
We located a hidden underground leak at a commercial property in Osborne Park that was wasting over 20,000 litres per week. By finding the exact source, we helped the client cut annual water costs by $9,500.
Book Underground Leak Detection in Perth –
Available 24/7
Don’t let a hidden underground water leak cause major damage. Book Expand Plumbing & Gas today for fast, accurate leak detection.
Underground Leak Detection FAQs
What causes underground leaks in Perth?
Tree roots, corrosion, soil movement, and aging pipes are the most common causes.
How do I know if I have an underground leak?
Check your water meter — if it spins when taps are off, you may have a leak. Other signs include high bills, damp patches, and low water pressure.
Do you need to dig up my yard to find the leak?
No. We use non-invasive technology like acoustic and thermal imaging to locate leaks before any digging.
How much does underground leak detection cost?
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.