Burst pipe warning for customers as winter takes hold

By Bobby Kelly. Last edited 11:40am 07/01/2021.

  • Welsh Water warns customers to lag pipes ahead of cold snap

  • Nearly a quarter of people in Wales have suffered frozen pipes – with 13% experiencing burst pipes

  • Four in five know where their stop tap is – meaning they can turn it off when pipes freeze

  • But nearly 40% don’t know how to lag outdoor pipes – meaning they are in danger of freezing

Welsh Water has warned it’s customers to take action to protect against frozen and burst pipes as researchers predict a cold snap bringing plunging temperatures and snow.

New research from polling company YouGov found that nearly 40% of people didn’t know how to lag outdoor pipes – which are most susceptible to freezing – and a total of 63% had never attempted this before.

Nearly a quarter of respondents in Wales said they had experienced frozen pipes in their home before, while 16% had experienced a burst pipe – which can cost thousands of pounds worth of damage.

Forecasters have said that temperatures are set to drop over the coming days, with a risk of snow, ice and freezing temperatures.

When temperatures drop, the water in your pipes and taps can freeze. Frozen water expands and can crack even in the strongest metal pipe. You may not notice this immediately, and only know you have a problem when the cracked pipe thaws and water starts leaking from it.

Welsh Water offers limited free lagging kits to customers to protect exposed pipes and outdoor taps, which can be found on dwrcymru.com.

When the weather’s cold, water pipes and taps that are outdoors or in a cold place like a loft or garage, can freeze and burst – leaving homes and businesses with no water, no heating, or a costly flood.

Properties that are left empty for extended periods can also be at greater risk of freezing pipes, such as businesses or seasonal sites, like caravan parks.

Ian Christie, Welsh Water’s Managing Director of Water Services, said: “Welsh Water is working hard to make sure customers are aware of the simple things they can do to make sure their water keeps flowing during the cold weather.

“That is why we’re asking people to check that their home or business is wrapped up and ready for winter by getting any outdoor pipes or taps lagged with a kit. It could help prevent a tremendous amount of inconvenience and expense – at the time of the year when you’d least want to face it.

“We’ve got lots of hints and tips, as well as a chance for domestic customers to get a lagging kit at dwrcymru.com/coldweather.”

According to the Association of British Insurers (ABI), severe cold weather experienced during the winter of 2010 saw around 3,500 calls a day being made to insurers to report frozen pipes at its peak.  An average repair cost for damage caused by bursts pipes can be up to £7,000.

When a problem occurs on pipes in homes, it is the responsibility of the homeowner or landlord and so it’s worth taking time to check they are well insulated.  The advice is also relevant to any type of property which might be left empty for a period of time over the winter.



To help you to have a stress-free winter, here are some top tips, straight from Welsh Water, on protecting your home or business over the colder months and how to deal with frozen pipes.

Protecting your home:

  1. To isolate your water supply turn your stop tap clock wise, we would recommend that you test the internal stop tap works before winter hits

  2. Make sure any exposed pipes and taps are wrapped or lagged and insulate water tanks. Get your free lagging kit here.

  3. If you have tanks or pipes in the roof space, open the loft hatch to allow warm air to circulate

  4. Fix dripping taps – a gentle trickle of water can freeze and completely block the waste pipe

  5. Keep your heating on low if leaving your home empty over the winter and get a friend or neighbour to check the property regularly

  6. If you own a property or business which will be unoccupied over the winter period, we would recommend you isolate the internal stop tap or leave the heating on low while you are away

Cold weather and how to deal with frozen pipes

If you have no water or low water pressure it could be because your water supply pipe is frozen.
You may want to check with your neighbour to see if they have the same problem. If they have water, it could be that your pipes are frozen.

How to deal with frozen pipes:

  1. Find your internal stop tap and turn it off.

  2. Slowly thaw the frozen pipe with hot water bottles or a towel soaked in hot water, starting at the end of the pipe. Never use a naked flame or blowtorch to thaw a pipe

  3. If you are unsure of anything at any time, call a registered plumber.


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