Use this form to change your personal details, such as:
If you're changing your email address or telephone number, just give us the new details in section 1 of this form.
If you want to let us know that you are moving home, please use one of the forms on the "I'm changing my address" page.
If you want to change your bank/building society details for your Direct Debit, please use our Set up/Amend a Direct Debit form instead.
Once we receive your form, we'll change your details within 10 working days. You won't need to do anything further, and you'll see your change in any future correspondence from us.
(Please note that fields marked * are mandatory)
In order to respond to your enquiry, it would help us if you could supply your Welsh Water account reference number.
If you would like to change your name, please use this section.
If you would like to add a name to a water account, please use this section.
If you would like to remove a name from a water account, please use this section.
If you would like to change the address where we send your bills, please use this section.
Dŵr Cymru Cyf, a limited company registered in Wales No. 2366777.
Registered office: Pentwyn Road, Nelson, Treharris, Mid Glamorgan CF46 6LY.
© Dŵr Cymru Cyf 2017.