GPR Water Leak Detection
Why Customers Choose Dowds Pipe and Cable Locating Services
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Water Leak Detection Services: Accurate, Non-Destructive Leak Detection for Homes and Businesses
When you suspect a water leak, time and precision matter. At Dowds Pipe and Cable Locating, I use the latest non-invasive technology to locate leaks quickly and accurately — without tearing up floors, walls, or driveways. Whether you’re dealing with a hidden burst pipe, an underground leak, or a blocked stormwater drain, my team and I provide reliable, affordable water leak detection services across Wollongong, Sydney, and the Southern Highlands.
With decades of combined experience, we’ve built our reputation on accuracy, integrity, and customer care — helping homeowners, property managers, and builders detect leaks early before they turn into expensive problems.
Why Professional Water Leak Detection Matters
Preventing Damage, Cost, and Health Risks
Many leaks develop silently, often hidden beneath concrete slabs, gardens, or inside walls. If left unchecked, they can cause structural damage, mould growth, electrical hazards, and skyrocketing water bills. Using acoustic listening devices, ground microphones, and thermal imaging, we find the precise source of the problem — saving you time, money, and unnecessary repairs.
Whether it’s a leaking water main, sewer pipe, or irrigation line, I make sure the cause is identified clearly and repaired efficiently.

Our Water Leak Detection Services
GPR uses radar pulses to detect metallic and non-metallic utilities, including PVC and concrete pipes. It’s ideal for identifying complex subsurface networks in clay soils and in coastal sands.
Interior Plumbing Leak Detection
Once I’ve pinpointed the source, I’ll explain the issue clearly, provide a no-obligation quote, and outline practical repair options. My goal is to get you back to normal as fast as possible — with minimal disruption and maximum transparency.
Using transmitters and receivers, this method traces metallic utilities like power cables, telecommunication lines, and metal pipes with high precision. It’s especially effective where underground congestion is common.
Sewerage Leak Detection
I use specialised inspection cameras and pressure testing to locate sewer leaks quickly and safely. Once identified, I’ll provide a detailed repair quote and guidance on how to prevent future issues. My goal is to protect both your property and your health with fast, hygienic, and compliant repairs.
Stormwater Leak Detection
When puddles linger long after the rain has stopped, you might have a stormwater leak or blockage. Proper drainage is crucial to protect your foundations and landscaping.
My team inspects stormwater systems using CCTV drain cameras and tracer technology to identify cracks, disconnections, or blockages. After locating the problem, I provide a clear report and a quote for any required repairs or drainage upgrades.

Water Main Leak Detection
If your water bill suddenly spikes or your water pressure drops, you could be dealing with a leak in your main supply line.
To confirm, we start by testing your stop valve and monitoring your water meter. If the leak persists, we use pressure testing and acoustic sensors to pinpoint the problem. Once located, I’ll provide repair options and help you decide on the most efficient fix.
Underground Leak Detection
Underground leaks are among the hardest to find — and the most damaging if left unchecked. Using ground microphones, correlation technology, and thermal imaging, I can trace underground water leaks beneath concrete slabs, driveways, or gardens without excavation.
Once complete, I’ll issue a detailed underground leak detection report that can be used for insurance claims or repair verification. My process is quick, non-invasive, and designed to get your property watertight again as soon as possible.
Commercial Water Leak Detection
Even a small leak in a commercial property can waste tens of thousands of litres per year — driving up costs and disrupting business operations.
We work with retailers, strata managers, schools, factories, and government facilities to detect and resolve leaks before they impact operations. Using state-of-the-art detection tools, we deliver fast results with minimal disruption, keeping your business running smoothly.
If you suspect a leak at your workplace, contact me to schedule a professional site inspection and full report.
Common Signs of a Water Leak
Water leaks often make themselves known through subtle but telling signs:
- Wet or damp patches that never dry
- Unexplained increases in your water bill
- Bubbling paint, warped cabinetry, or mould growth
- Persistent musty odours inside your home
- Lush patches of grass or uneven soil outside
If you’ve noticed any of these symptoms, it’s time to call for professional leak detection. Book a leak inspection today on 0434 635 134.

The Hidden Dangers of Water Leaks
Undetected leaks can undermine your foundations and damage walls, floors, and ceilings. Over time, moisture weakens materials and causes cracking, corrosion, and subsidence. Early detection prevents thousands of dollars in structural repairs.
Structural Damage
When leaks occur in hidden areas, they create damp environments ideal for mould and mildew. Exposure to these spores can trigger allergies, asthma, and respiratory issues — especially for children and the elderly.
Mould and Health Risks
Sewer Contamination
Broken sewer lines can leak wastewater into the soil, contaminating groundwater and creating serious environmental hazards. Our sewer leak detection services help identify and resolve contamination before it spreads.
Landscaping and Drainage Damage
Underground leaks saturate the soil and damage retaining walls, driveways, and lawns. They also waste enormous amounts of water and can attract pests such as mosquitoes and termites.
Electrical Hazards
Water and electricity don’t mix. Hidden leaks near electrical systems pose fire and electrocution risks. My non-invasive testing methods ensure leaks are detected safely before they become dangerous.

Why Early Leak Detection Saves You Money
A dripping tap might waste a few litres a day — but a hidden pipe leak can waste hundreds of litres per hour. That’s not just a water bill issue; it’s a structural one. The earlier you detect the source, the less damage you’ll face and the cheaper your repairs will be.
How We Detect Leaks
We combine acoustic listening, thermal imaging, and CCTV inspection to locate leaks precisely and efficiently:
- Acoustic listening equipment detects vibrations caused by escaping water.
- Thermal cameras identify temperature changes behind walls or under slabs.
- Tracer gas and pressure testing confirm hidden leaks with pinpoint accuracy.
- CCTV cameras give a clear view inside drains and sewer lines.
This combination ensures we can locate the source quickly, without unnecessary damage to your property.
Cost Guide: Water Leak Detection in NSW
| Service Type | Typical Price Range (inc. GST) | Inclusions |
|---|---|---|
| Interior plumbing leak detection | $180 – $350+ | Thermal and acoustic testing, on-site reportking, report |
| Underground or mains leak detection | $350 – $550+ | Ground microphone + tracer gas testing |
| Sewer or stormwater leak detection | $250 – $450+ | CCTV camera inspection and report |
| Commercial or large-scale leak detection | From $550+ | Full diagnostic, multi-point inspection |
Prices are estimates only and may vary depending on access, property type, and leak complexity. For an accurate quote, call me directly on 0434 635 134 for a tailored assessment.
Choosing the Right Leak Detection Provider
Experience and Expertise
Always choose a leak detection specialist with proven experience in residential, commercial, and underground leaks. At Dowds Pipe and Cable Locating, I bring decades of hands-on expertise and the latest technology to every job.
Modern, Non-Destructive Equipment
We use acoustic sensors, thermal imaging, tracer gas, and CCTV cameras — ensuring precise detection with minimal disturbance to your property.
Clear Communication and Upfront Pricing
You’ll always know what to expect. I’ll walk you through the findings, explain your repair options, and provide an upfront, itemised quote. No hidden costs, no upselling — just honest service and transparent advice.
Why Choose Dowds Pipe and Cable Locating
- Locally owned and operated in Wollongong
- Fully licensed, insured, and accredited
- Non-destructive, accurate detection technology
- Fast response and same-day reporting
- Friendly, honest, and professional service every time
If you suspect a water leak or just want peace of mind, contact me today.
Call Dowds Pipe and Cable Locating on 0434 635 134 for fast, affordable and reliable Water Leak Detection in Wollongong, Sydney, and the Southern Highlands.

Real Customer Reviews
Declan moved things around to fit me in at short notice for an urgent water leak. He located the leak through concrete within minutes. He provides a highly efficient and professional service. I will be using Dowds Pipe and Cable Utility Locating for all of my future work.
Declan came out to scan our concrete slab at our new premises ahead of drilling into the concrete, his findings totally put our mind at ease for the job ahead. Declan is professional, friendly and always a pleasure to deal with. Highly recommended for Utility Services Locating!
Great service and value for money, highly recommended Dowds Pipe and Cable Utility Locating.
Very friendly and helpful utility locating service. Declan took the time explaining things over the phone to me in a very clear, informative, and professional way. Thanks
Water Leak Detection FAQs
How do you find hidden water leaks?
We use advanced acoustic sensors, thermal cameras and moisture detection tools to locate leaks under slabs, in walls and around plumbing systems without invasive work.
How much does water leak detection cost in Wollongong?
Leak detection typically costs between $180 and $550+, depending on property size and the complexity of the plumbing network.
Can you detect leaks without damaging walls or floors?
Yes, our non-invasive technology allows us to pinpoint leaks without unnecessary demolition or disruption to your home or business.
Do you handle both indoor and outdoor leak detection?
Yes, we locate leaks in internal plumbing, stormwater and irrigation systems for residential and commercial clients across Wollongong and Sydney.
What are the signs I might have a hidden leak?
Unexpected water bills, damp patches, or mould growth are common signs. Call Dowds Pipe and Cable Locating for a quick, accurate diagnosis before damage worsens.
