If you need to speak to a live customer service representative in Welsh Water customer service you need to dial 0800-052-0145. To speak with a live agent, you need to stay on the line (typical waiting time is about 15-20 minutes).

Alternatively you can use the following other options available in the customer service phone menu:

• If you have a water meter press 1.
• If you don’t have a water meter press 2.
• If you’re not sure press 3.
• To hear these options again press the star key.

Welsh Water Customer Service Hours

Live customer service representatives from Welsh Water are available from 8am to 6pm Monday-Friday, from 9am to 1pm Saturday, Sunday closed.

Welsh Water Customer Support Phones

• Welsh Water Customer Support Phone is 0800-052-0145. Live customer service representatives from Welsh Water are available from 8am to 6pm Monday-Friday, from 9am to 1pm Saturday, Sunday closed.
• For Water Emergencies you need to dial 0800-052-0130. Live customer service representatives are available 24/7.
• For Sewer Flooding & Sewerage Emergencies you need to dial 0800-085-3968. Live customer service representatives are available 24/7.
• For Call Developer Services you need to dial 0800-917-2652. Live customer service representatives are available from 8:30am to 5pm Monday-Friday, Saturday-Sunday closed.
• To Call About Your Meter, Meter Reading or Bill you need to dial 0800-052-0140. Live customer service representatives from Welsh Water are available from 8am to 6pm Monday-Friday, from 9am to 1pm Saturday, Sunday closed.

Welsh Water Social Networks Customer Service

• Welsh Water customer service could be contacted via Dwr Cymru Welsh Water Facebook page. Typically Welsh Water customer service representative replies within an hour. Live customer service representatives are available from 8am to 8pm Monday-Friday, from 8am to 1:30pm Saturday, Sunday closed.
• You can also reach Welsh Water support via Welsh Water Twitter page. Live customer service representatives are available from 8am to 8pm Monday-Friday, from 8am to 1:30pm Saturday, Sunday closed.
• You can message a live customer service representative using Welsh Water Linkedin page

Welsh Water Mailing Addresses

Developer Services:
Dŵr Cymru Welsh Water
PO Box 3146
Linea
Fortran Road
Cardiff
CF30 0EH

Welsh Water Live Chat Support

If you would like to speak to a live customer service representative in Welsh Water customer support by chat you need to go to the Welsh Water contact page. Choose the “General Enquiries”, press the “Live Chat”, then choose the question you are inquiring about and press the “Live Chat” blue button.

Welsh Water support e-mail

If you would like to speak to a live customer service representative in Welsh Water customer support by email you need to go to the Welsh Water contact page. Choose the “General Enquiries”, press the “Email Us”, then choose the question you are inquiring about, press the “Take me There” blue button and fill in the form.

Welsh Water Help Center

• You can get more information about Welsh Water Customers on the Welsh Water Customers Support page.

Welsh Water Opening Hours

Monday 8am to 6pm
Tuesday 8am to 6pm
Wednesday 8am to 6pm
Thursday 8am to 6pm
Friday 8am to 6pm
Saturday 9am to 1pm
Sunday closed