Large Industrial Sites | Dwr Cymru Welsh Water
Dwr Cymru Welsh Water

Monday, 17th February

With flooding still affecting many communities in Wales and Herefordshire, we are experiencing high volumes of calls due to the high winds and heavy rain and our crews are extremely busy.

Here are the organisations you may need to contact:

Natural Resources Wales - 0800 80 70 60 (24 Hours) - if the flooding is coming from a watercourse (such as a stream) that is about to or has burst its banks.

Your Local Council – if you suspect the flooding is resulting from rising groundwater or surface water run off.

Welsh Water Sewerage Services & Emergencies - 0800 085 3968 (24 hours) or report an issue via a webform – for flooding inside your property caused by a blocked or overloaded sewer.

Large Industrial Sites

Wrap up pipes and taps in a cold place, wrap them with insulation or a lagging kit and inspect them regularly.

Consider draining pipes which are in exposed cold places ahead of a cold snap, and turn off the valves.

Keep your building warm
by keeping the heating on low during freezing spells, service the boiler and check your radiators are all working properly.

Dripping taps and even the smallest leak can increase the risk of frozen pipes. Talk to your staff and make sure they report any leaks, broken fittings or broken insulation.

Know how much water you use, if possible take regular meter readings (where it is safe to do so) to spot any leaks quickly.

Know where your stop taps are (you may have more than one), and check that they work. You’ll need to get to them quickly, and know how to turn them off, should the worst happen. And take time to know where water pipes are, indoors and outside, are so you can inspect regularly.

Know your plumbers
Keep a list of registered plumbers handy in case you need to call them in an emergency, the Water Industry Approved Plumbers scheme may be able to help you.

Check the property if it is being left empty for a period during a cold spell. Taking time to do this can reduce the impact frozen or burst pipes.


Please also consider the scale of your usage.

Have available contact details for local contractors who could repair leaks on your private supply network. Where this private network has very larger diameter pipes, you should consider whether fittings would be readily available, if not you may need to consider keeping spares or have the appropriate contracts in place to source these at short notice.

If a water supply is critical to your business you should consider onsite storage facilities or put arrangements in place with a third party to provide tankers during an emergency. We will assist you if we can but during cold weather our resources may be in use on our own network and we won’t be able to help.

If you do not have data loggers on your supply consider installing these, because being aware of your base usage will help to identify any leaks quickly before they impact your site. Please contact us on 0800 260 5052 if you would like to understand more about data logging.

You can contact us at or your Retailer (for customers with a single site using over 50,000m3 of water per year) for advice on how you can prepare your site and protect your business.