Leak Detection Thornbury
Hidden water leak in an older home, a shower leak or a high water bill in Thornbury? 1300 FINDLEAK is a licensed leak detection specialist, not a general plumber. We find water, gas, shower, balcony and pool leaks without digging up floors or smashing tiles. Fixed pricing from $398 inc. GST, an insurance-ready report with every job, and a 24/7 emergency line.
- Rated 4.6 from 500+ Google reviews
- Free phone quote
- Same-day service often available
Water leaking right now?
- Turn off the main water valve, usually next to the water meter at the front of the property.
- Switch off power to any wet area and move valuables away from the water.
- Take photos for your insurer, then call us on 1300 346 353, 24/7.
Why leaks are hard to find in Thornbury
Thornbury is a suburb in the City of Darebin, about 7 km north-east of the Melbourne CBD, between the Merri and Darebin creeks. About 19,000 people live here. Its streets of Victorian, late Federation and interwar homes include the heritage-protected Thornbury Park Estate, and it is home to the High Street village and the Darebin International Sports Centre.
Period homes have galvanised and copper pipes under timber floors and inside walls, where a slow leak can rot floorboards and raise damp, and renovated bathrooms can hide failed waterproofing. Creek-side streets and mature trees add drainage and root problems. The first sign is often a higher water bill, damp walls, soft floors, low water pressure or a meter that never stops. We find the exact source, so only a small area needs to be opened for the repair.
Leak detection services in Thornbury

Shower and bathroom leaks
Thermal imaging, moisture mapping and flood testing show whether water is coming from a pipe, a failed shower seal or the waterproofing, without breaking good tiles.

Hidden water leaks and burst pipes
Water meter moving with every tap off, or a high water bill? We trace leaks under slabs, under floors, inside walls and in the underground supply line using acoustic listening and tracer gas.

Roof, balcony and storm leaks
Water inside after heavy rain? We trace water entry through roof tiles and sheets, flashings, box gutters, balcony membranes and window seals, then show you the exact entry point.
How much does leak detection cost in Thornbury?
Covers the first hour on site, inc. GST. Most single leaks are found within that hour.
For extra time, if needed. We'll tell you before going past the first hour.
Thermal imaging, acoustic and tracer gas equipment, plus an insurance-ready PDF report.
How it works
- Call or book online
Call 1300 346 353, 24/7, for a free phone quote, or book online. We'll confirm a time that suits you or your property manager. - We locate the leak
A licensed technician uses non-destructive equipment to pinpoint the source. - We mark it and explain
We show you exactly where the leak is and what's causing it. - Report and repair
You get an insurance-ready report. We can repair it, or your plumber can.
Common leak problems in Thornbury
| Sign | Likely cause | How we find it |
|---|---|---|
| Damp walls, low water pressure or rusty water in an older home | Leaking galvanised or copper pipe inside a wall or under a timber floor | Thermal imaging, acoustic listening and pressure testing |
| Soft floorboards or damp under the house | Leaking pipe under a raised timber floor | Subfloor inspection and acoustic listening |
| Water bill suddenly higher | Leak under the slab, under the floor or in the supply line from the meter | Acoustic ground microphones and tracer gas |
| Stain or drip on the ceiling below a bathroom | Shower, bath or waste pipe leak, or failed waterproofing | Thermal imaging, moisture mapping and flood testing |
| Wet patch, sinking ground or a high bill on a treed block | Tree roots cracking a water or sewer pipe | Acoustic ground microphones, tracer gas and CCTV drain cameras |
| Gas smell, or a failed pressure test | Leaking gas line or fitting | Pressure testing and electronic gas detection |
High Yarra Valley Water bill?
Yarra Valley Water supplies Thornbury. Leaks on your side of the meter are the owner's responsibility. If a hidden leak has pushed up your bill, Yarra Valley Water may be able to help under the Victorian water industry guideline for undetected leaks, once the leak has been repaired promptly by a licensed plumber. Our report shows where the leak was and what caused it, which supports your application. Download our free leak credit claim checklist.
Homeowners, landlords and property managers
We work for homeowners, landlords, property managers, owners corporations, builders and insurance loss adjusters across Thornbury and Darebin. For rentals and apartments, we arrange access with tenants and send the report straight to the owner, manager or insurer, so repairs can be approved quickly.
Thornbury leak detection FAQs
How much does leak detection cost in Thornbury?
It starts from $398 inc. GST for the first hour on site, including thermal imaging, acoustic and tracer gas equipment and an insurance-ready PDF report. Extra time, if needed, is $198 per hour. Most single leaks are found within the first hour, and we give you a free phone quote before we book.
How do I know if I have a hidden water leak?
Turn off every tap and water-using appliance, then check your water meter. If the dial is still moving, water is escaping somewhere. Other signs include a higher Yarra Valley Water bill, damp walls or skirting boards, a musty smell, mould or warm spots on a tiled floor.
Do you offer emergency leak detection in Thornbury?
Yes. Our emergency line runs 24/7 on 1300 346 353. Same-day appointments are often available across Thornbury, Northcote, Preston and Darebin.
Can you find leaks in an older Victorian, Edwardian or interwar home?
Yes. Older homes often have galvanised or copper pipes under timber floors and inside walls. We use thermal imaging, acoustic listening and pressure testing to find the exact spot, so only a small area needs to be opened for the repair.
Can tree roots cause a hidden water leak?
Yes. Roots from large trees can crack or push apart water and sewer pipes, especially in older clay and copper lines. We trace the leak with acoustic listening and tracer gas, and can check sewer lines with a CCTV drain camera.
Will my report help with an insurance claim or a high water bill?
Yes. Every job includes a PDF report with photos, readings and the cause of the leak. Insurers use it to assess resultant damage claims, and it supports an application to Yarra Valley Water for help with a bill caused by a hidden leak.
Found a leak in Thornbury? We'll pinpoint it.
Free phone quote, fixed pricing from $398 inc. GST, and a 24/7 emergency line.
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Call 1300 346 353 - 24/7 for emergencies, office hours 7am–11pm, 7 days
Email admin@1300findleak.com.au — work orders and purchase orders welcome
Book online or submit a work order through our portal
We're a mobile service and come to your property. Our teams are based in Parkdale and Moorooduc in Victoria, Seaforth in Sydney, and Hope Island on the Gold Coast, covering Melbourne, Geelong, the Mornington Peninsula, regional Victoria, Sydney, Wollongong, Brisbane, the Gold Coast, Tweed Heads, Casuarina, Kingscliff and Byron Bay.
1300 FINDLEAK Pty Ltd · ABN 83 640 078 397 · VIC plumbing licence 105159 · QLD licence PD26669
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I'm Oliver Schulze, the director of 1300FINDLEAK, a family-run company committed to solving all your gas and water leak problems. We pride ourselves on delivering the highest standards in customer outcomes and satisfaction, ensuring reliable and professional service every time.