Contact us

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

Write To Us  

Due to the current situation with Covid 19 we ask if you are sending correspondence by mail you also send it via email.

Wholesale Service Centre
Dwr Cymru Welsh Water
PO Box 3164
Fortran Road
CF30 0FF


Please contact us on 0800 260 5053