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How do plumbers find leaks behind walls?

September 8, 2021

Mitchel Plumbing Gas

How do plumbers find leaks behind walls?

When it comes to plumbing, one of the most difficult tasks for a plumber is finding a leak. Leaks can develop behind walls and be very difficult to detect. In this article, we will explore how plumbers find leaks behind walls and some of the methods they use. We will also look at what happens when water gets in your walls and how long it takes for water to damage them. Finally, we will discuss what you can do if you suspect that there is a water leak behind your wall.

What happens when water gets in your walls?

When water seeps into your walls, it can cause a lot of damage. It can lead to mould growth, which can be dangerous to your health. Additionally, water can damage the structure of your home and lead to costly repairs. If you suspect that there is a water leak behind your wall, it is important to contact a professional as soon as possible.

How long does it take for water to damage walls?

The amount of time it takes for water to damage your walls depends on the size of the leak and the type of material your walls are made from. For example, if you have a small leak, it may take a few days for the water to cause any damage. However, if you have a large leak, the damage can be done in a matter of hours.

How do you tell if pipes are leaking behind a wall?

There are several signs that you can look for if you think there may be a water leak behind your wall. One of the most obvious signs is water damage on your walls or ceiling. If you see any stains, pooled water, or peeling paint, it is possible that there is a leak. Most leaks can be spotted on the wall after a period of time, so if you see any new damage, it is likely that a leak has developed.


Additionally, you may be able to hear the sound of water running even when all the taps are turned off. This is another sign that there is a leak somewhere in your home. You can also test this by turning off all taps and checking the water meter. If the needle on the meter is moving, it means there is water running somewhere in your home.


Another sign of a leak in your wall is the smell of mould or mildew. This is usually caused by water leaking into the wall and causing the growth of mould or mildew. If you notice a musty smell in your home, it is possible that there is a water leak.


Another test you can do is the candle test. Turn off all the lights in your home and hold a lit candle up to the wall. If you see the flame flicker or the smoke from the candle is drawn to the wall, it means there is a draft coming through, which could be caused by a water leak.

What should you do if you find a water leak behind your wall?

As mentioned, If you suspect there is a water leak behind your wall, the first thing you should do is turn off the water to your home. This will help to prevent any further damage. Next, you will need to locate the source of the leak. You can start by checking for any obvious signs of water damage on your walls. If you see any stains, pooled water, or peeling paint, it is likely that the leak is located in that area.

Is there a tool to detect water leak?

If there is no obvious water damage, you can try using a moisture meter to check for moisture in the wall. Moisture meters are available at most hardware stores. To use one, you will need to insert the probes into the wall and wait for a reading. If the meter shows that there is moisture in the wall, it is likely that there is a leak.


If you cannot find the source of the leak using these methods, you may need to hire a professional plumber to help you locate the leak.


Other tools plumbers use to find leaks are:

- Acoustic leak detectors:

These devices use sound waves to identify leaks. The waves are sent through the wall and bounce off of the water. The leaks will create a unique sound that can be detected by the acoustic leak detector.

- Thermal imaging cameras:

These cameras can detect temperature changes in the wall, which can indicate the presence of a leak.

- Pressure test:

This test involves pressurizing the water lines and then checking for leaks using a special gauge.


Once the leak has been located, the next step is to repair it. This will usually involve replacing the damaged pipes. Depending on the severity of the leak, you may also need to repair or replace any damaged drywall. If the leak was caused by a faulty appliance, such as a water heater, you will need to have the appliance repaired or replaced.


If you have any questions about how to find or repair a water leak in your home, you should contact a professional plumber for assistance.

How much is a leak detection test?

You won't have to buy a leak detection test because you can do some simple tests at home, as we've described. However, if you need to hire a professional plumber to help you locate the leak, the cost will vary depending on the size and complexity of your home. Generally, the average cost of hiring a plumber for a leak detection job is between $150 and $300.

What is the average cost to repair a water leak?

The cost to repair a water leak will vary depending on the severity of the leak and the amount of damage that has been done. Generally, the average cost to repair a water leak is between $500 and $1000. However, if extensive damage has been done, the cost could be much higher.


If you have any questions about how to find or repair a water leak in your home, you should contact a professional plumber for assistance.


Mitchell Plumbing and Gas is a Brisbane-based plumbing company that offers a wide range of services including leak detection and repair. We have a team of experienced and licensed plumbers who are available 24/7 to help you with any plumbing needs you may have. Contact us today for a free quote!





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