Last Update: 28 October 2025
Leaking pipes are a common and potentially damaging household problem. They can arise from various issues, including blockages, high water pressure, or even tree root intrusions, and often go unnoticed for extended periods, leading to more severe consequences if not addressed promptly.
This guide provides essential information on how to detect and repair leaking pipes, covering common signs like mould, damp patches, and musty odors. It also delves into the causes, such as corrosion in older systems or root infiltration, and discusses whether to tackle repairs yourself or call a professional. For minor issues, DIY methods can be effective, but complex or hidden leaks often require expert intervention.
Leaking pipes can cause significant damage to your home if left unaddressed. In this guide, we will answer your top FAQs and provide you with everything you need to know to detect and repair a leaking pipe.
Leaking pipes rank right up there with clogged drains as one of the most frequent plumbing headaches.
They can occur due to various causes, such as gunk stuck in the pipes, high water pressure, tree root intrusions, etc., and can take a long time to be detected. However, such leaks can lead to bigger problems if not checked in time.
This guide zeroes in on how to detect a water leak from a leaky pipe and sort it out. Plus, we’ll throw in some tips to help you prevent these issues from cropping up in the first place. Let’s dive in!
Signs Of A Leaking Pipe

[If you notice any mould or mildew](https://wpplumbing.com.au/blog/burst-pipe-mould-removal) on walls, floors, or ceilings, the chances of a water leak from a damaged pipe are high. Damp patches on such surfaces also indicate a water leak.
Since [mould in your shower](https://wpplumbing.com.au/blog/how-to-remove-mould-from-shower) or bathroom can be a health hazard, it is crucial to identify and fix the leaking pipe as soon as possible. But sometimes mould and mildew may not be visible as they grow within the walls. In such instances, you can detect a musty smell in the area, or water leaking from pipes may pool in one place and stagnate, leading to the odour.
Alternatively, you may notice wet stains on walls, ceilings and floors, another sign of plumbing leaks. [Water dripping continuously in the toilet bowl](https://wpplumbing.com.au/blog/why-is-the-base-of-my-toilet-leaking) or from the toilet tank can also indicate a pipe leak.
Causes Of A Leaking Pipe
Clogged plumbing can lead to [overflowing water](https://wpplumbing.com.au/blog/why-is-my-drain-overflowing), a common cause of water leaks. Such leaks [may eventually lead to the pipe bursting](https://wpplumbing.com.au/blog/what-causes-pipes-to-burst) if not repaired in time.
Plus, your plumbing system may have become old and corroded. Corrosion can damage pipes, resulting in water leaks, and is most common in older houses. Another common cause of a water leak is [water flowing at high pressure through plumbing pipes](https://wpplumbing.com.au/blog/why-high-water-pressure-can-be-harmful).
[Tree roots that grow into the plumbing system](https://wpplumbing.com.au/blog/how-to-avoiding-tree-roots-damaging-your-pipes) can also result in an underground pipe leak. They can enter the piping through the tiniest cracks and start growing inside, leading to considerable damage.
DIY Or Professional Repair
There are two ways to resolve plumbing problems like water leaking from a damaged pipe. You can use [DIY techniques to repair the leaking pipe yourself or hire a plumbing professional](https://wpplumbing.com.au/blog/diy-plumbing-when-to-call-a-professional).
DIY techniques are most suitable for minor problems, such as water leaks caused by damaged or old fixtures, like taps and faucets. Such techniques only require a little skill and can help save a lot of money.
That said, fixing a leaking pipe isn’t always straightforward. Hidden leaks in supply pipes behind walls or ceilings can be tricky to spot. In such scenarios, it’s wise to call in the professionals. They’ve got the necessary tools and know-how to tackle the job safely.

Tools And Materials Required
If you’re planning to repair a leaking pipe using DIY techniques, some standard tools you may need include:
- Hand wrench
- Plumbers tape
- Self-fusing silicone tape
- Epoxy putty
- Patch and clamp
- Pipe cutters
Step-by-Step Guide To Repairing A Leaking Pipe
Spotting a leak becomes a breeze once you pick up on tell-tale signs like mould on your walls or ceilings, discolouration, or that unmistakable musty smell. After you’ve pinpointed the leak, you can repair it using different methods based on the cause.

1. Locating Leaks
A running water meter can indicate a leak, so look for the signs mentioned above [to locate the source of the leak](https://wpplumbing.com.au/blog/how-to-detect-a-water-leak-in-your-home).
2. Turn Off The Water Supply
Before you get cracking on fixing that leak, make sure you turn off the water supply at the mains. You’ll usually find this in the garage or near the water heater.
3. Fixing Pipe Leaks
Sometimes, pipe leaks are caused by loose coupling nuts, which can be tightened using a hand wrench. Alternatively, the watertight seals may have worn out and need replacing by disassembling the fixture and applying plumbers’ tape.
4. Testing The Repairs
Once the repairs are complete, turn the water supply back on and check whether the water is still leaking. If the problem is not resolved, some other plumbing issue may be causing the leak.
Preventative Measures
[Regular maintenance](https://wpplumbing.com.au/blog/diy-plumbing-maintenance-tips) is the best and most effective way to prevent plumbing leaks and can help prevent situations from getting out of hand. Also, installing a pressure regulator on the main line can help reduce the water pressure and avoid water leaks.
You can also avoid using commercial-grade drain cleaners, which can eat through the pipes and lead to leaks.
Locating and Repairing a Leaking Pipe
[Early leak detection](https://wpplumbing.com.au/blog/how-accurate-is-leak-detection) is the best way of preventing pipe leaks in your home. And with the signs mentioned above, detecting such leaks should be easy. If you’ve seen a minor water leak, it can be dealt with using DIY techniques, though [in the cases of hidden water leaks, professional help may be needed](https://wpplumbing.com.au/services/leaking-pipe).
Additionally, sometimes leaks may indicate a bigger problem with the plumbing system, which is why it is a good idea to take the help of a professional plumber. They can help identify any other plumbing problems and suggest the best ways of dealing with them. So, [contact your nearest plumber today](https://wpplumbing.com.au/contact-us)!
FAQs
1. How much water is wasted from pipe leaks?
A pipe dripping water at one drip per second can waste up to 3,000 gallons of water annually.
2. What type of problems can leaky pipes lead to?
Leaking pipes can cause property damage worth thousands of dollars. Also, leaks can increase the chances of exposure to asbestos, a major health hazard. And leaking water containing cleaning chemicals or detergents can harm the environment.
3. Is a constantly running metre a sign of a water leak?
If your water meter is constantly running even when all taps and faucets are off, there is a high chance of a water leak. How quickly the metre runs will often determine the size of the leak.
4. How much time does it take to repair a leaking pipe using DIY methods?
The time required to fix a leaking water pipe using DIY techniques will depend on the cause, location and size of the leak. Generally, more minor leaks can be set in one to two hours, while larger ones may take longer.
5. What is the easiest way to fix a leaky pipe?
One of the simplest fixes is to apply some epoxy putty right where the leak is. It’s straightforward and gets the job done.
Published by: Pascal Harb28 October 2025