Leak Detection & Watermain in Mount Roskill, Auckland
Professional leak detection using specialist equipment — hidden leaks, high water bills, water damage prevention across Auckland.
Leak detection in Mount Roskill involves finding leaks you can't see — inside walls, under slabs, in buried water mains, and between the meter and the house. Muir Plumbing, Gas & Drainage uses specialist equipment to locate hidden leaks without unnecessary digging or damage. A sudden jump in your Auckland water bill is one of the most common signs of a hidden leak. Detection and diagnosis typically costs NZD $160–$500; repair cost depends on location and severity. We serve Mount Roskill, Blockhouse Bay, Epsom, and surrounding suburbs. Early detection prevents far costlier damage to floors, walls, and foundations.
| Scenario | Detection method | Typical detection cost (NZD) | Repair cost range |
|---|---|---|---|
| High water bill, no visible leak | Acoustic Detection | $160–$250 | Varies |
| Water main leak (street to house) | Ferret pressure test | $600–$800 | $500–$2,000 |
| Under-slab leak | Acoustic Detection | $160–$600 | $800–$3,000+ |
| Wall cavity leak | Trace dampness | $250–$450 | $300–$1,500 |
| Shower recess leak | Dye test, visual inspection | $150–$300 | $400–$2,000 |
| Leaking hose connections | Visual | $150–$250 | $100–$400 |
How do you find a hidden water leak?
- We start with a meter test — isolate the house and watch the meter for movement
- Acoustic Detection first and escalation to Ferret Pressure testing if required
- We aim to locate without unnecessary cutting or digging
For related work, see our Plumbing maintenance services.
Why is my water bill suddenly high?
- A toilet with a faulty inlet valve can waste hundreds of litres per day silently
- A pinhole leak in a supply pipe drips constantly even when nothing is running
- Water mains leaks between the street and your house are your responsibility as owner
- Watercare Auckland charges for all water passing through the meter — even leaked water
For related work, see our Plumbing maintenance services.
Can leak detection prevent water damage?
- Yes — hidden leaks can run for months before visible signs appear
- Prolonged leaks under slabs can shift foundations
- Leaks inside walls cause mould and structural timber damage
- Early detection and repair is far cheaper than reinstatement work
For related work, see our Plumbing maintenance services.
Who is responsible for a water main leak between the street and my house?
- The pipe from the toby (street valve) to your house is your responsibility as the property owner
- Watercare Auckland charges for all water passing through the meter — including water lost to a leak on your side
- We locate the leak, repair or replace and handle the reinstatement where needed
- A sudden high bill with no visible leak is often the first sign — don't wait for damp to appear inside
For related work, see our Plumbing maintenance services.
Why is the lawn or path always wet when nothing's been running?
- A hidden supply leak under the lawn or drive is common in Auckland's older suburbs — clay soil holds water and the patch stays soggy
- Damp concrete paths, garden sheds, and under-house areas can also point to a buried pipe fault
- Start with a meter test at the toby — isolate the house and watch whether the dial moves with all taps off
- We trace leaks with acoustic detection and Ferret pressure testing without unnecessary digging
For related work, see our Plumbing maintenance services.
Common questions
Leak Detection & Watermain — FAQ
Useful links
Leak Detection & Watermain across Auckland
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Last updated: 7 June 2026