Maerdy Pontypridd


We're upgrading the water pipes in the Maerdy-Pontypridd area so provide you with clean, fresh water for years to come.

Why are we doing this?

We want to be able to continue to provide our customers in the area with a safe, reliable supply of clean drinking water for decades to come.

The work will help to ensure security of supply to our customers and to alleviate issues with loss of supply or low water pressure currently experienced by some customers in the area.

Our plan is to invest around £23.3 million in the water network in the area and we want to let you know what that means for you.

What does this work involve?

Some of our pipes that provide customers with their morning shower and cups of tea are over 100 years old. Over time natural deposits can build up inside the pipes and slow the flow of the water. While these deposits are not harmful, every now and then we need to clear the pipes to keep the water running freely.

Most customers will not be affected by the work and will probably not even notice the work being done and we will write to any customers that may be affected with all the information they will need.

With some parts of the network nearing the end of its operational life, the investment in this area will see around 54km of water mains either replaced or cleansed. That is the equivalent to the length of almost 600 football pitches.

Where will the work take place?

We are pleased to say that we have made good progress and all the new pipe has been installed from Maerdy to Pontypridd. We are now working to abandon the old water main along the A4233 between Maerdy and Porth. To do this, we will be spending two days in various sections of the road.  As we do this you will also see us ensuring all services are transferred onto the new main. 

Areas that will benefit from the investment will include Maerdy, Ferndale, Tylorstown, Ynyshir, Porth, Treforest and Pontypridd. When we work in your area, we will update the In Your Area section of our website. You can register on this page to receive updates about work by email, just click Keep Me Informed.

The Community Fund

The Community Fund is a chance for communities to boost fundraising efforts for good causes in their area.  Since 2018, 20 projects across Rhondda Cynon Taf have received funding. It has helped to support activities such as sports, music and arts equipment, office supplies, room hire, and providing mental health and wellbeing resources.  Some of the funding has also been provided to nurseries, adult education classes and to groups to promote community engagement.

Community Fund

If you live in an area where work is taking place – and you’re fundraising for projects to benefit the community – you could receive funding from Welsh Water up to a value of £1,000.

Find more information and how to apply

Traffic management plan

We spend a lot of time planning our work to make sure it causes the least disruption possible. We’ve carefully planned the work here so that a lot of it doesn’t need to be carried out in the road. Instead, as much as we can, we will be laying the new pipes in land away from the main built up areas.

There will be times however when we do need to work in the road and we may need to ask some people not to park on the road where the work takes place. If this is the case, we’ll be sure to let you know in plenty of time. Please be assured that we’ll get the work in the roads done as quickly as we can.

Want to know more?

If you have any queries regarding this work, please do not hesitate to contact us at Welsh Water’s Customer Call Centre on 0800 052 0130 and ask for Cheryl Jackson.  You can also visit in your area and search ‘Maerdy’.  

How are we doing?

Our aim is to provide you with great customer service, and we would like to know if we’re doing a good job.  If you would like to share your feedback visit Capital Feedback