Leak Detection & Inspection Sydney
Fast, Accurate Leak Detection for Homes & Businesses Across Greater Sydney
- check_circle Advanced Equipment
- check_circle Non-Invasive Testing
- check_circle Licensed Plumbers

Guaranteed
60 Min
Response Time
24/7 On Call Day or night

Why Choose Jayco Plumbing for Leak Detection?
A hidden leak is one of the most damaging plumbing problems a home or business can face. Whether it’s behind a wall, under concrete, inside a ceiling or somewhere in your drainage system, water leaks can go unnoticed for weeks - causing structural damage, mould, rising damp, high water bills and costly repairs. Jayco Plumbing provides professional leak detection and inspection services using industry-leading equipment and more than two decades of hands-on plumbing experience.
- check_circle 20+ years leak detection and plumbing experience
- check_circle Non-invasive testing wherever possible
- check_circle Industry-leading technology
- check_circle Fast pinpoint accuracy
- check_circle Upfront pricing with no hidden surprises
- check_circle Clear reporting and professional recommendations

Do you need a Leak Detection service?
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Our Leak Detection Services
We locate leaks everywhere - no matter how hidden.
Internal Water Leaks
Wall leaks, ceiling leaks, bathroom leaks, kitchen leaks, laundry leaks, hidden pipe leaks and roofing & flashing leaks.
External & Underground Leaks
Garden leaks, driveway leaks, under-concrete leaks, stormwater leaks, irrigation leaks and underground pipe bursts.
Hot & Cold Water Line Leaks
Copper pipe leaks, PEX leaks, poly pipe leaks and galvanised pipe failures.
Bathroom & Wet Area Leak Detection
Shower leaks, waterproofing failures, vanity leaks, tile bed water leaks and toilet base leaks.
Leak Investigation for High Water Bills
If your water bill has suddenly increased, we can pinpoint the exact issue.
Commercial Leak Detection
Offices, retail, restaurants, industrial facilities, medical clinics and strata buildings. If water is escaping, we’ll find it.
Technology We Use to Locate Leaks Accurately
Our advanced equipment lets us identify leaks with precision and minimal property disruption.
Thermal Imaging Cameras
Detect temperature changes to locate hot and cold water leaks behind walls and tiles.
Acoustic Listening Devices
Sensitive instruments that detect water movement inside pipes, concrete and soil.
Moisture Meters
Identify dampness within surfaces to narrow down leak locations.
Pipe Tracing Equipment
Locates the exact run of hidden pipes.
Gas Trace Testing
Pressurised testing that pinpoints extremely hard-to-find leaks.
Camera Inspections
CCTV cameras for stormwater and sewer leaks.

Common Signs You Have a Hidden Leak
If you notice any of these, you likely have a leak.
- error Sudden spike in water bills
- error Damp walls or bubbling paint
- error Mould or musty smells
- error Dripping sounds in walls or ceilings
- error Warm or wet patches on the floor
- error Water stains on ceilings
- error Cracks in walls
- error Toilet running constantly
- error Low water pressure
- error Soil or garden areas always wet
- error Moving water meter when taps are off

What Causes Hidden Water Leaks?
These issues can range from small drips to major bursts.
- error Ageing or corroded pipes
- error Poor installation from previous plumbers
- error Tree root intrusion
- error Bathroom waterproofing failure
- error Movement in concrete or foundations
- error High pressure in pipes
- error Faulty connectors and joints
- error Damaged stormwater lines
- error Incorrect drainage falls
- error Broken toilet seals
- error Underground pipe fatigue

Our Leak Detection Process
- check_circle Initial Assessment - we discuss symptoms, inspect the area and identify likely zones.
- check_circle Non-Invasive Testing - we use thermal imaging, acoustic listening and moisture meters first.
- check_circle Locate the Leak - we pinpoint the exact location and cause.
- check_circle Detailed Explanation - we explain the problem clearly before any repair.
- check_circle Immediate Repair Option - we can repair the leak on the same day if approved.
- check_circle Prevention Recommendations - we advise how to prevent future leaks.

Leak Repair Services
Once we find the leak, we can fix it immediately.
- check_circle Pipe repairs & replacements
- check_circle Shower resealing
- check_circle Toilet leak repairs
- check_circle Under-concrete pipe rerouting
- check_circle Roof and flashing repairs
- check_circle Stormwater repairs
- check_circle Tap and mixer repairs
- check_circle Valve replacements
- check_circle Bathroom waterproofing remediation
What Our Customers Say
Leak detection requires experience - not guesswork.
Extremely knowledgeable and carried out the work with care and hygiene. Will definitely call again.
Quick and easy to work with. A quality job at a fair price. Highly recommend.
Jayco Plumbing found a leak our previous plumber couldn’t locate. Professional and honest.
Our Service Areas
We detect and repair leaks across: Sydney CBD, Inner West, Eastern Suburbs, Western Sydney, Hills District, Northern Beaches, North Shore, South West Sydney, St George, Sutherland Shire - and surrounding suburbs. Wherever you are, we find and fix leaks fast.
- checkSydney CBD
- checkInner West
- checkEastern Suburbs
- checkWestern Sydney
- checkHills District
- checkNorth Shore
- checkNorthern Beaches
- checkCanterbury-Bankstown
- checkSouth West Sydney
- checkSt George
- checkSutherland Shire
- checkPenrith & Surrounds
Your Leak Detection Questions, Answered
Everything Sydney homeowners ask us most.
Still have questions?
Our team is on call 24/7 and happy to help.
How do you detect leaks without cutting into walls? expand_more
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Can small leaks cause big damage? expand_more
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Our Plumbing Services
From emergency repairs to full installations - one trusted local team for every plumbing and gas job across Sydney.
Need Fast, Accurate Leak Detection in Sydney?
Call Jayco Plumbing. Protect your home. Prevent damage. Fix leaks early. Reliable leak detection and repairs done right.
verified Licensed & insured · Upfront pricing · 60-minute response*