Welsh Water Head Office (Glamorgan)

Last Updated on January 22, 2020

Contact Number

Call the Dŵr Cymru or Welsh Water head office by dialling this phone number. There is no answering machine menu, so it should ring through until an available person picks up. When you are speaking to a person at Welsh Water, ask for a department you wish to transfer to. Here are some examples:

  • Customer Service
  • Communications
  • Engineering
  • Environment
  • Investors
  • IT
  • Media
  • Retail
  • Waste
  • Wholesale


Welsh Water
Dŵr Cymru Cyf
Pentwyn Road
Mid Glamorgan
CF46 6LY


The Welsh Water head office is unsurprisingly located in Wales. It is accessible by car from the A470 and the A472, or from the nearby Nelson or Quaker’s Yard. There is a car park on the site and bus stops on the road outside. The bus routes which go this way are the 78, E78, and S79, which travel through both nearby villages. The closest train station is 2 miles away at Quaker’s Yard for Transport for Wales trains. You can walk 3 minutes to Treharne Road and catch the 78 bus to the Welsh Water offices. This bus journey will take around half an hour.