Leaking Hot Water Systems


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Based on 141 reviews
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ChIJKx6qCxdLkWsRsjQr7QvIPp4 2be749200ae13308aaccf2603e8d4614 - Leaking Hot Water SystemsCourtney Dziuma
12:03 21 Mar 24
Pauls plumbing has exceptional reviews because he is exceptional. I made an enquiry for a new hot water system and less than 24 hours Paul was installing said hot water system. He is professional, friendly, vibrant, excellent prices and does quality work. Couldn’t be any happier and so thankful we decided to go with Paul’s plumbing. I’d only ever recommend Paul’s plumbing and anticipate to use him when we renovate our house. Super happy

ChIJKx6qCxdLkWsRsjQr7QvIPp4 886e116987d4a1b367e53920a8d41a3d - Leaking Hot Water SystemsBonjee
04:15 21 Mar 24
A big thank you to Paul and Bou , they helped a damsel in distress when the pipe under my kitchen sink exploded and water was going everywhere!!!! , they texted me when plumber was on his way , bou was promt efficient And a really nice chap to boot,. Bou had my water my working again in no time. Thank you to Pauls Plumbing will def use you again and also your rates were Fantastic. Once again a big thank you 🙏

ChIJKx6qCxdLkWsRsjQr7QvIPp4 b3f1e575a836e7a3c7ab10c6d015484d - Leaking Hot Water SystemsRed Dog91
22:22 18 Mar 24
Fantastic, friendly service.When the plumber knew he was going to be late, he gave me a courtesy call.Can't fault their service!

ChIJKx6qCxdLkWsRsjQr7QvIPp4 f24d3a019459c689ade0baaefaa16616 - Leaking Hot Water SystemsPeter Hoppner
11:05 11 Mar 24
Paul did a fantastic job replacing the toilet and water pump. Was very affordable prices and was quick to come out to look at the requested job. Kept me informed on the progress of the job. Would highly recommend him and would get him again if required.

ChIJKx6qCxdLkWsRsjQr7QvIPp4 e349b05037d6d9ef4d0b1a313ba0e711 - Leaking Hot Water SystemsBrad Robinson
00:25 06 Feb 24
Did a thorough free quote, prices were great in comparison to a few others, even discovered a burst main which the other companies didn't! Started the job promptly, all done to a great standard in 2 hours. Would absolutely recommend.

ChIJKx6qCxdLkWsRsjQr7QvIPp4 95a9e84b6126fbcdaa486cde517931b5 - Leaking Hot Water SystemsMichael Allen
22:54 02 Jan 24
Had Paul's plumbing attend out house to install a new toilet after we had another company do a no show.Paul's plumbing attended in less than 24 hours, competitive price, professional service and tidy work! Will be using them again definately

ChIJKx6qCxdLkWsRsjQr7QvIPp4 b855f5de0bdeb110929f221c31b47e1f - Leaking Hot Water SystemsAnita Richards
01:36 22 Nov 23
"We are extremely pleased with the service provided by this group. They efficiently replaced our old solar hot water cylinder with a new electric one. Their communication was excellent, they were punctual, friendly, and completed the job quickly. We'll definitely choose this company again for future needs."

ChIJKx6qCxdLkWsRsjQr7QvIPp4 004c723a080163df2df64d7fd0e8d90c - Leaking Hot Water SystemsMike Power
02:41 17 Sep 23
Paul is reliable and frank about estimates. Once he made contact he turned up on time and completed the job within 60 minutes. I got him back to rebuild the bathroom. That took a month in spite of the immediate start.


Most homeowners don’t think about their hot water system until it stops working. Leaks in hot water systems can go undetected for days or weeks, depending on how bad they are.

When your hot water system leaks, you may not just damage the system but also your floors, walls, and furniture. To prevent an unexpected leak, it is important to have your hot water system serviced on a regular basis.

Hot water systems can spring a leak due to a variety of factors including a faulty pressure relief valve, a damaged tank, loose pipe fittings, and high water pressure. Depending on what caused the leak, you can fix it with a minor repair or replace the whole thing.

Here’s our complete guide to fixing a leaking hot water system, including:

  • When Should You Repair a Leak?
  • What To Do If Your Hot Water System Is Leaking
  • How do leaky hot water systems occur?

Fixing a Leaking Hot Water System

The best thing you can do when your hot water system leaks water is act right away. When you ignore a leak, you could turn it into a big problem, and even force you to replace your system.

When you notice a leak, the first thing you need to do is identify where it is coming from.

1) Locate the leak

It’s critical to confirm that the leak is coming from the hot water system or the pipes leading into or out of it. It’s critical to figure out if water is coming from the top or bottom of the hot water tank.

Pressure relief valve leaks

You can fix the leak by lifting the pressure relief valve three or four times. By opening and closing the valve, you’ll clear any blockages.
If the leak persists after opening and closing the pressure relief valve several times, Paul’s Plumbing can replace the valve for an inexpensive and minor fix.

3632 - Leaking Hot Water Systems

Is there a leak coming from the top or the bottom?

Electric or solar systems should be turned off when a leak appears from the top or bottom of the tank. Circuit breakers in the fuse box allow you to cut power to the hot water system while keeping other appliances running. If you’re inspecting an electric or solar hot water system that leaks, don’t leave the power on. You shouldn’t run your heating element if your hot water tank leaks.

When you’re looking for a new system and are unsure which system is right for you, our experienced hot water plumbers can help you to make the right decision. After you have finalised your choice of hot water system, we can supply and then provide you with your hot water system installation in Brisbane, Ipswich or Logan, at a time that is convenient for you.

2) Turn off the water supply

Once you’ve found the leak, turn off the hot water supply. This will prevent further damage from water leaks.

Turning off the hot water system

A black tap or round dial should be on the bottom of the system. Here’s where cold water comes from. Turn the tap clockwise to switch it off completely. If you can’t find the tap or it’s corroded or seized, turn off the water mains.

Water Mains Turned Off

Your water main is usually in a black box near your water meter or on the side of your house. If you live in an apartment, look under the kitchen sink or laundry sink. Once you’ve found the water mains, turn the tap off.
Make sure you fill up some bottles of water for drinking and buckets for flushing the toilet while you’re waiting for the hot water specialist.

3) Call A Plumber

When hot water leaks, there’s often a bigger issue. There may be a quick fix for the leak, but if you don’t fix it right, you may have to replace the whole thing. Because they use water, electricity, and gas, hot water systems can also cause serious injuries if handled wrong.

You should call a hot water professional as soon as you shut off the power and water to the tank. Within 24 hours, a leaking hot water system can get really bad. Paul’s Plumbing is ready to help if your hot water system leaks.

Why do hot water systems leak?

Hot water leaks can be caused by a variety of things. Most hot water systems have pressure relief valves that release small amounts of water periodically. Hot days may cause this more often, but it’s perfectly normal.

Another possible cause is a damaged tank, faulty pressure relief valves, loose fittings, or high water pressure inside the tank.

Damaged hot water tank

The tank may have started to corrode, causing cracks and fractures and leaking water. You should call a plumber right away if this happens. Leaving corrosion unattended will only make it worse.

Pressure Relief Valve (PRV)

A puddle under a PRV may mean the valve needs to be replaced. Dust and grit can damage the seal in the valve. It’s important to have your hot water system serviced every 5 years to prevent grit and other particles from damaging your PRV. A damaged pressure relief valve will shorten the life of your hot water system.

Pipe fittings that are loose

A pipe fitting on a hot water system can loosen over time, leaking water. This can be exacerbated by harsh weather.

Paul’s Plumbing can help you if you’re unsure whether your hot water system needs to be repaired or replaced.

Water Pressure

Water pressure over 500kpa can cause your hot water tank to leak. It’s easy to fix this problem by installing a pressure reduction valve.

An expert plumber at Paul’s Plumbing can test your water pressure to make sure it’s not too high for your hot water system. If it is, the pressure limiting valve can be easily replaced.

We have highly trained technicians who are familiar with all of the major brands of hot water systems. Call Pauls Plumbing on 0406 071 659 when you need quick, affordable hot water repairs.

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