Your bill 2025Frequently asked questions about your bill
The average Dŵr Cymru Welsh Water household customer bill will increase by an average of 27% for 2025-26.
A typical metered customer would see their annual bill increase from £437 to £575, whilst a typical unmetered customer would see their annual bill increase from £693 to £913.
Water only customers will see increases of 46% and wastewater only customers will see increases of 24%, as well as increases in bills from their water or wastewater supplier.
Household customer bills will increase by much lower rates over the following four years to 2030.
Firstly, we do not have the power to charge whatever we want for our services. Price limits are set by Ofwat – the independent industry regulator.
Every five years we agree with Ofwat the level of investment we are going to undertake to deliver agreed improvements during a set investment period.
We are now at the start of a new investment period or AMP, which will see us invest more than £4bn in our services including £2.5bn on projects to improve the environment.
This much needed investment will allow us to reduce pollution, upgrade and build new vital assets, reduce leakage, improve water quality and improve our performance as a company.
Any price increases are never welcomed - we have always sought to keep these to a minimum - however, bill increases have not kept up with inflation over the past 15 years.
There are a number of factors that could be the reason for this. The one neighbour for example may be metered or the properties may have a different rateable value if neither are metered. Any assumptions on the reason for the difference would be speculation and it would not be appropriate for us to share any information about an individual’s accounts.
We recognise that the cost of living continues to affect our customers. Our help with bills page provides support and assistance in making bills more affordable by raising awareness of the various available options that can benefit households and reduce water usage.
If you already have a water meter installed, you can find out more information here.
See if you qualify for any of our social tariffs or schemes
Use our eligibility checker to find out which financial support schemes you can apply for.
Help with your bills
We have a number of ways we may be able to help make your bills more affordable.
We recognise that the cost of living continues to affect our customers. Our help with bills page provides support and assistance in making bills more affordable by raising awareness of the various available options that can benefit households and reduce water usage.
Find out moreCould you save money with a water meter?
Just answer a few questions and see what your bill could be if you were on a meter!
How many people live at your property?
How do you use your water?
Please select Yes or No
Your monthly estimate
Based on the information you’ve provided, we would expect your bill to be around £{MonthlyCharge} per month* if you switched to a meter.
This is just an estimate, your bill may be higher or lower than this depending on how much water you use. You would be billed based on the amount of water you use every 6 months.
If you’re interested, click here for more information on water meters.
*The monthly estimate is based on a customer who is receiving both a water and sewerage service.
Your bill could be around:
£{{monthlyCharge}}
per month
or £{AnnualCharge} per year.
Over the next 12 months, here is how each pound of the expenditure funded from customer bills will be spent.
Business plan 2025-2030
Welsh Water’s Business Plan represents a major step up in investment over the next 5 years, which reflects not only important business objectives, but also the improvements our customers want to see.
Find out more