How Do I Find and Fix a Hidden Water Leak?
A hidden water leak can be a homeowner’s nightmare. It may silently waste hundreds of litres of water, increase your bills, and even damage floors, walls, or foundations before you realise there’s a problem.
At A Grade Plumbing & Gas, we specialise in water leak detection and repairs across Brisbane, Ipswich, the Gold Coast, and the Sunshine Coast. This guide explains how to spot, diagnose, and fix hidden leaks, plus when to call a professional.
Signs You May Have a Hidden Water Leak
Hidden leaks rarely announce themselves, but there are a few warning signs every homeowner should watch for:
- Unexpectedly high water bills – Even when consumption habits haven’t changed, a hidden leak can inflate costs.
- Damp spots or water stains – Walls, ceilings, or floors showing moisture may point to leaking pipes behind the surface.
- Mould or mildew growth – Persistent dampness fosters mould, often indicating a slow leak.
- Strange sounds – Hissing, dripping, or gurgling noises may signal water moving through unseen cracks or pipe damage.
If you notice any of these issues, it’s wise to investigate further or contact a licensed plumber in Brisbane.
Common Sources of Hidden Water Leaks
Pipes Behind Walls or Under Floors
Older homes or buildings with concealed pipework can develop leaks that remain out of sight. Over time, corrosion, loose joints, or shifting foundations may compromise the plumbing, causing slow, hidden leaks.
Leaking Taps and Fixtures
A dripping tap might seem minor, but even small leaks add up over time. Our team provides expert leaking tap repairs, ensuring that faucets are properly sealed and water isn’t wasted.
Hot Water Systems
Hot water systems are common leak points. Corrosion, faulty valves, or pressure issues can lead to undetected water loss. We offer hot water repairs and replacements to keep your system running safely and efficiently.
Blocked Drains
Sometimes, leaks aren’t just from pipes. Blockages can cause water to back up and overflow in hidden areas, producing damp patches and odours. Our blocked drain plumber and drain cleaning services clear blockages before they cause serious damage.
How to Detect a Hidden Leak
Detecting a leak often requires a combination of observation, technology, and professional experience:
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Monitor Your Water Meter
Turn off all taps and appliances, then check your water meter. If it continues to move, a hidden leak may be present.
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Look for Visual Clues
Examine walls, ceilings, and floors for discolouration, bubbling paint, warped floorboards, or damp smells.
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Use Technology
Professional plumbers use modern tools such as thermal imaging cameras, moisture meters, and acoustic leak detectors. These allow us to locate leaks without unnecessary destruction to walls or flooring.
Fixing Hidden Water Leaks
Once a leak is detected, repairs can vary depending on the source and severity:
- Pipe replacement or repair – Cracked or corroded pipes are replaced or patched.
- Fixture repair – Dripping taps and leaking fittings are repaired or replaced.
- Hot water system servicing – Faulty valves or tanks are fixed or upgraded.
- Drain clearing – Blocked drains are professionally cleaned to prevent overflows.
Attempting to fix hidden leaks without experience can worsen the problem, so it’s often best to contact an experienced plumber in Brisbane to ensure a thorough and lasting repair.
Why Choose A Grade Plumbing & Gas?
- Licensed, experienced plumbers across Brisbane, Sunshine Coast, Gold Coast & Ipswich
- Experts in water leak detection and repairs
- Reliable leaking tap repairs, hot water repairs, drain cleaning, and blocked drain services
- Friendly, professional service with transparent pricing
- 24/7 emergency plumber Brisbane availability
We don’t just patch leaks — we solve the underlying problem to prevent future issues and keep your plumbing safe and efficient.
Protect Your Home from Water Damage
If you suspect a hidden water leak, don’t wait until damage occurs. Contact A Grade Plumbing & Gas today for expert detection and repair. We’ll ensure your home’s water system is leak-free and functioning optimally.