We are happy to help with any enquiries from business customers who use more than 50ML of water a year.
Our office hours are 8am to 6pm, Monday to Friday. However we are available for emergency issues out of hours by dialling the number below, although this is only if you are a business customer who uses 50ML of water a year.
You can get in touch by emailing us at firstname.lastname@example.org
Wholesale Service Centre
Dwr Cymru Welsh Water
PO Box 3164
Please contact us on 0800 260 5053
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Dŵr Cymru Cyf, a limited company registered in Wales No. 2366777.
Registered office: Pentwyn Road, Nelson, Treharris, Mid Glamorgan CF46 6LY.
© Dŵr Cymru Cyf 2020.