Please note our billing contact centre and webchat festive opening hours are:

Monday 29th December: 08:00 - 18:00
Tuesday 30th December: 08:00 - 18:00
Wednesday 31st December: 08:00 - 14:00
Thursday 1st January: Closed
Friday 2nd January: 08:00 - 18:00
Saturday 3rd January: 09:00 - 13:00

Our Operational contact centre is open 24/7 throughout the festive period for any water or wastewater emergencies.

Change your billing address

Use this form to change your billing address.

If you are moving, please do not use this form. Click here to select the correct moving option.

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.

This form is also available in Welsh.

What you'll need

Your Welsh Water account reference number This can be found in the top right corner of your bill, on your My Account dashboard, or the reference on your payment if you pay by direct debit.
The address of the property we bill This is not the current billing address
The updated billing address

How can we help you?

Our customers usually search for:

Our festive opening hours

Change your billing address

What you'll need