Boil Water Notice!

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Updated: 16:00 03 December 2024

IMPORTANT: We have extended the Boil Water Notice which affects customers living in the following areas: Blaenrhondda, Blaencwm, Tynewydd, Treherbert, Treorchy, Cwm-parc, Ton Pentre, Gelli, parts of Pentre, parts of Tonypandy and parts of Ystrad.

Storm Bert resulted in a significant amount of flooding on site at Tynywaun Water Treatment Works and surface water running from the hill onto the drinking water storage tank and impacting the tank.

Our crews have worked 24/7 to put this right but some of the work to prevent damage from future flooding involves installing waterproof membranes around the storage tank.

A period of dry weather is needed to achieve this successfully and our teams are working around the clock to get it done as quickly as possible.

In the meantime, we are continuing to ask all customers in affected areas boil their water before using it for drinking purposes.

We are delivering bottled water to customers on our Priority Services Register and care homes while also working with key sites such as hospitals.

Water bottle stations have been set up and are open in the following locations:

  • Ynyswen Industrial Estate, Ynyswen Rd, Treorchy, CF42 6ED.
  • Rhondda Sport Centre, Geligaled Park, Tyntyla Rd, CF41 7SY.
  • Co-op, Station Road, Treorchy, CF42 6UA.

We are prioritising vulnerable customers, and are asking people to only take what they need.

Customers can access:

Boil Water Notice extension - Open letter to customers from our Chief Executive Peter Perry.

Check if their supply is affected by using a post code checker here: www.dwrcymru.com/boil-water-notice.

Check here for a list of Frequently Asked Questions.

Visit In Your Area or check our social media channels for further updates.

We are sorry for the inconvenience this incident has caused.

Contact us


2. Suggested ways to get in touch

For situations requiring immediate help and/or assistance:

Water emergencies

If you have an emergency - please don't wait

0800 052 0130

24hrs a day, 7 days a week

Sewer flooding & sewerage emergencies

If you have an emergency - please don't wait

0800 085 3968

24hrs a day, 7 days a week

Live chat about wastewater and sewerage services

8am - 6pm Monday to Friday and 9am - 1pm on Saturday. Closed on Bank Holidays.

Chat now Offline Live Chat

Live chat about water services

8am - 6pm Monday to Friday and 9am - 1pm on Saturday. Closed on Bank Holidays.

Chat now Offline Live Chat

Message us on Social Media

We can help with day-to-day queries via Direct Message on Facebook and Twitter.

3. Suggested ways to get in touch

Live Chat

If you need advice, our customer service agents are here to help. 8am - 6pm Monday to Friday and 9am - 1pm on Saturday.

Chat now Offline Live Chat

Message us on Social Media

We can help with day-to-day queries via Direct Message on Facebook and Twitter.

Any other questions?

If you are unable to let us know online, then speak to a customer service agent

0800 052 0145

8:00am - 6:00pm Mon-Fri
9:00am - 1:00pm Sat

Our busiest call times

We usually have our longest waiting times between 11am and 1pm, but we're open until 6pm on weekdays if you wanted to contact us at a quieter time.

3. What would you like to do?

3. Suggested ways to get in touch

Please note that we can only discuss this with the account holder, or another person named on the account.

If you are moving, or have recently moved, to our service region and do not yet have a reference number, please see our moving options.

Live chat

Speak to one of our advisors about your customer reference number. You can leave the field blank as you're starting the chat.
8am - 6pm Monday to Friday and 9am - 1pm on Saturday.

Chat now Offline Live Chat

Message us on Social Media

We can help with day-to-day queries via Direct Message on Facebook and Twitter.

Call our contact centre

If you'd prefer to speak to someone in our contact centre, then our friendly advisors are here to help.

0800 052 0145

8:00am - 6:00pm Mon-Fri
9:00am - 1:00pm Sat

Our busiest call times

We usually have our longest waiting times between 11am and 1pm, but we're open until 6pm on weekdays if you wanted to contact us at a quieter time.

3. Suggested ways to get in touch

Live chat about Direct Debits

Speak to one of our customer service agents about Direct Debits.
8am - 6pm Monday to Friday and 9am - 1pm on Saturday.

Chat now Offline Live Chat

Any other questions?

If you are unable to setup or amend a Direct Debit online, then speak to a customer service agent

0800 052 0145

8:00am - 6:00pm Mon-Fri
9:00am - 1:00pm Sat

Our busiest call times

We usually have our longest waiting times between 11am and 1pm, but we're open until 6pm on weekdays if you wanted to contact us at a quieter time.

3. Pay online

Make a payment on the phone

Make a payment over the phone using our automated payments line

0800 028 5209

24 hours a day, 7 days a week

3. Ways we can help

2. Find out more

3. Next steps

Live Chat about your meter, meter reading or bill

Chat to one of our helpful customer service agents. 8am - 6pm Monday to Friday and 9am - 1pm on Saturday. 

Chat now Offline Live Chat

Message us on Social Media

We can help with day-to-day queries via Direct Message on Facebook and Twitter.

Call us about your meter, meter reading or bill

Speak to one of our helpful customer service agents

0800 052 0140

8:00am - 6:00pm Mon-Fri
9:00am - 1:00pm Sat

Our busiest call times

We usually have our longest waiting times between 11am and 1pm, but we're open until 6pm on weekdays if you wanted to contact us at a quieter time.

3. Suggested ways to get in touch

Live Chat about your meter, meter reading or bill

Chat to one of our helpful customer service agents. 8am - 6pm Monday to Friday and 9am - 1pm on Saturday. 

Chat now Offline Live Chat

Message us on Social Media

We can help with day-to-day queries via Direct Message on Facebook and Twitter.

Call us about your meter, meter reading or bill

Speak to one of our helpful customer service agents

0800 052 0140

8:00am - 6:00pm Mon-Fri
9:00am - 1:00pm Sat

Our busiest call times

We usually have our longest waiting times between 11am and 1pm, but we're open until 6pm on weekdays if you wanted to contact us at a quieter time.

2. Please select

If you’ve recently moved home and you’re due a refund from us, you can contact us to request this using the options below.

Live chat

Speak to one of our helpful customer service agents about your refund

Chat now Offline Live Chat

Message us on Social Media

We can help with day-to-day queries via Direct Message on Facebook and Twitter.

Request a refund

You can speak to one of our customer advisors who will be happy to help

0800 052 0145

8:00am - 6:00pm Mon-Fri
9:00am - 1:00pm Sat

Our busiest call times

We usually have our longest waiting times between 11am and 1pm, but we're open until 6pm on weekdays if you wanted to contact us at a quieter time.

2. We're sorry to hear of your bereavement

Need some extra help?

We appreciate this is a difficult time for you so if you would like help through the process, our helpful customer advisors are here to help.
8am - 6pm Monday to Friday and 9am - 1pm on Saturday.

Chat to us Offline Live Chat

Prefer to call us?

You can speak to one of our customer advisors who will be happy to help

0800 052 0145

8:00am - 6:00pm Mon-Fri
9:00am - 1:00pm Sat

Our busiest call times

We usually have our longest waiting times between 11am and 1pm, but we're open until 6pm on weekdays if you wanted to contact us at a quieter time.

2. Please select

2. What would you like to do?

Call Developer Services

If you'd prefer to speak to us over the phone you can contact us using the details below

0800 917 2652

Monday to Friday, 8:30am to 5:00pm

3. Suggested ways to get in touch

Already a customer?
If you're already a customer who is looking to move premises, or if you're expanding and want to add a new premises to your account, then you'll need to contact us another way.

Message us on social media

We can help with day-to-day queries via Direct Message on Facebook and Twitter.
We're here 8am - 8pm Monday to Friday and 8:30am - 1:30pm on Saturday. If you message outside of these times then we'll reply as soon as we can.

Live chat about moving premises

If you need advice on moving premises our customer service agents are here to help

Chat now Offline Loading

Any other questions?

If you are unable to let us know you're moving premises online, then speak to a customer service agent

0800 052 0145

8:00am - 6:00pm Mon-Fri
9:00am - 1:00pm Sat

4. Suggested ways to get in touch

Live chat about Direct Debits

Speak to one of our customer service agents about Direct Debits.
8am - 6pm Monday to Friday and 9am - 1pm on Saturday.

Chat now Offline Live Chat

Any other questions?

If you are unable to setup or amend a Direct Debit online, then speak to a customer service agent

0800 052 0145

8:00am - 6:00pm Mon-Fri
9:00am - 1:00pm Sat

Our busiest call times

We usually have our longest waiting times between 11am and 1pm, but we're open until 6pm on weekdays if you wanted to contact us at a quieter time.

4. Make a payment

Make a payment on the phone

Make a payment over the phone using our automated payments line

0800 028 5209

24 hours a day, 7 days a week

3. Next steps

Live Chat about your meter, meter reading or bill

Chat to one of our helpful customer service agents. 8am - 6pm Monday to Friday and 9am - 1pm on Saturday. 

Chat now Offline Live Chat

Call us about your meter, meter reading or bill

Speak to one of our helpful customer service agents

0800 052 0140

8:00am - 6:00pm Mon-Fri
9:00am - 1:00pm Sat

Message us on social media

We can help with day-to-day queries via Direct Message on Facebook and Twitter.
We're here 8am - 8pm Monday to Friday and 8:30am - 1:30pm on Saturday. If you message outside of these times then we'll reply as soon as we can.

4. What would you like to do?

4. Suggested ways to get in touch

Please note that we can only discuss this with the account holder, or another person named on the account.

If you are moving, or have recently moved, to our service region and do not yet have a reference number, please see our moving options.

Live chat

Speak to one of our advisors about your customer reference number. You can leave the field blank as you're starting the chat.
8am - 6pm Monday to Friday and 9am - 1pm on Saturday.

Chat now Offline Live Chat

Message us on Social Media

We can help with day-to-day queries via Direct Message on Facebook and Twitter.

Call our contact centre

If you'd prefer to speak to someone in our contact centre, then our friendly advisors are here to help.

0800 052 0145

8:00am - 6:00pm Mon-Fri
9:00am - 1:00pm Sat

Our busiest call times

We usually have our longest waiting times between 11am and 1pm, but we're open until 6pm on weekdays if you wanted to contact us at a quieter time.

3. Our contact options

3. Find out more

3. Please select

General enquiries

If you are unable to resolve your query online, then speak to a customer service agent

0800 052 0145

8:00am - 6:00pm Mon-Fri
9:00am - 1:00pm Sat

Water emergencies

If you have an emergency - please don't wait

0800 052 0130

24hrs a day, 7 days a week

Sewer flooding & sewerage emergencies

If you have an emergency - please don't wait

0800 085 3968

24hrs a day, 7 days a week

Call Developer Services

If you'd prefer to speak to us over the phone you can contact us using the details below

0800 917 2652

Monday to Friday, 8:30am to 5:00pm

Our busiest call times

We usually have our longest waiting times between 11am and 1pm, but we're open until 6pm on weekdays if you wanted to contact us at a quieter time.

3. Please select

Live chat about general enquiries

Speak to one of our helpful customer service agents about a general enquiry.

Chat now Offline Live chat

Live chat about water services

8am - 6pm Monday to Friday and 9am - 1pm on Saturday. Closed on Bank Holidays.

Chat now Offline Live Chat

Live Chat with Developer Services

Speak to one of our helpful Developer Services agents

Chat now Offline Live chat

4. Please select

4. Please select

4. Please select

4. Please select

Frequently asked questions

Still have a question?

Tell us what your query is about

Speak to our operations team:

0800 052 0130

24hrs a day, 7 days a week

Speak to our Developer Services team:

0800 917 2652

Monday to Friday, 8:30am to 5:00pm

If you'd prefer to speak to us in Welsh

0800 052 6058

Mon - Fri 8am to 6pm

Text relay for customers with hearing and speech difficulties.
Telephone: 18002 & number you want to call
Textphone: 18001 & number you want to call

Bogus caller / checking a visiting officers identity:

0800 281 141

24 hours a day, 7 days a week