Change your contact number

Please choose which customer type best describes you:

Personal / Residential I own or rent my property and am responsible for paying the water bill.

Business I have a business account for my company or business premises.

We need the following information to retrieve your Welsh Water customer account.

10 digit customer reference number

Title

First name

Surname

Date of birth

Email

The contact number you want to change

We need the following information to retrieve your Welsh Water customer account.

10 digit customer reference number

Company name

Company number

Email

The company contact number you want to change