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Water leaking from your boiler? What to do

You’ve spotted a leak and you need to do something - but what? A puddle of water randomly appearing on your carpet can be a bit scary, but sometimes it’s no biggie. It doesn’t mean your entire house needs demolishing and rebuilding - but it’s certainly a sign that something isn’t quite right with your boiler.  

This guide should tell you everything you need to know about water leaking from your boiler and hopefully provide you with a clear plan of action. In the meantime, lay down some towels and bowls in the areas that are leaking - that should help for now. 


Main potential causes of water leaking from a boiler:

1). Poorly installed pipework.

In some occasions, a water leak can be caused by joints in the pipework that haven't been fitted as well as they should. That’s not to say the engineer has done a ‘botched job’, it simply means some piping may need to be tightened. This tends to be the case if your boiler has recently been fitted. Therefore, the best thing to do is to contact the engineer who installed it for you and have them fix it for you. This won't cost you anything and probably won't take too long for them to complete. 

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2). Corroded pipework. 

Let’s say your boiler is over 10 years old and you spot a water leak - then the pipework may be corroded. If you were waiting for a sign to buy a new boiler, then this would be the one. Corroded pipework occurs naturally over time, the corroded pipework leads to gaps forming which allows water to escape - creating a leak. You can tell when pipework is corroded as you’ll be able to smell something unusual or weird in a particular area of your home. Therefore, it makes sense to invest in a new central heating system all together to make sure the issue doesn’t snowball. 

Receive a quote for a new boiler from BOXT in minutes. Answer a few questions about your property, enter your postcode, and see a list of some of the finest boilers on the market. For a fixed price quote, click here

3). Clogged drains.

From bits of hair to food waste, clogged drains are very common in a household. Inconvenient, messy, and irritating, clogged drains can have quite the impact on your pipework as it disrupts the water flow. On a bad day, this can build up in a pipe and cause a potential burst and leak out. 

To unclog your drains try using bleach or a detergent to remove anything that’s blocking the pipe and causing your boiler to leak. If the leaking continues then it’s time to contact a boiler specialist for further assistance. 

4). High water pressure.

Water pressure is essential in keeping your system running and flowing as it should. Without decent water pressure, hot water is going to be non-existent. On the flipside, when the pressure is too high - this can cause pipework's to burst as too much water is being used for the pipes to contain. One telltale sign of high boiler pressure is ‘banging’ noises coming from your pipes. 

Attempt to depressurise your boiler and get the needle anywhere in the green - preferably between 1 and 1.5 bar. If your water pressure is continuing to rise then switch off your boiler and contact an engineer to go and take a look at it for you. 

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How can they be fixed? Does the issue need professional help? 

As mentioned, the best thing for you to do at this moment is to make sure the water doesn’t ruin your favourite carpet or flooring. Lay down towels and place bowls underneath the leak to prevent this from happening. 

Once you’ve done this, find your boiler and switch it off to thwart any further damage. Unfortunately, if your boiler is leaking there’s nothing much else you can do. This is generally an internal problem with the boiler system itself and will need a professional to take a look at it. 

If you’re a BOXT customer then please do not hesitate to give us a call on, 0800 193 7777. You’ll be put through directly to one of our in house expert engineers. They listen to your problem and provide you with a fast solution - it’s the BOXT way. 

Alternatively, our Live Chat is a great way to receive a quick answer to any of your boiler problems. Fast, informative, and simple - you’ll be chatting with one of our boiler specialists who work hard to help you through any jam.

If you enjoyed this guide, check out: https://www.boxt.co.uk/boilers/guides/when-to-replace-boiler

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