Contact us

If you are concerned about the quality of your drinking water you should contact your water company in the first instance. A number for your water company can be found here.

For general water quality enquiries or where your water company does not resolve a problem with your drinking water quality, please contact us using the details below:

Email address:

Contact number: 0330 041 6501

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If you have any comments or feedback on our website, please email us at We are always grateful for feedback to help us improve our website service.

General Data Protection Regulation
When contacting the Drinking Water Inspectorate, please see the DWI’s privacy notice webpage.

Click here for information on the Inspectorate’s policy on Whistleblowing.

For issues other than water quality, or if you live in Scotland or Northern Ireland, there are further contact details for the appropriate organisations below.

For enquiries about leaks and sewerage please contact your water company.

Any complaints regarding a water company, other than drinking water quality, should be directed to the CCW at

Any complaints regarding the Drinking Water Inspectorate should follow the DWI complaints procedure. 


If you live in Scotland you should call the Drinking Water Quality Regulator For Scotland (DWQR)

Telephone: 0131 244 0190

Northern Ireland

If you live in Northern Ireland you should call the Drinking Water Inspectorate – Northern Ireland (DWINI)

Telephone: 028 9056 9282

Private drinking water supplies

All enquiries should be directed to the Environmental Health section of your local authority. You can find contact details for all local authorities in the UK here.


Ofwat are the economic regulator for the water and sewerage industry in England and Wales. Their contact details can be found here.

Environment Agency (England) and Natural Resources Wales

They are responsible for maintaining or improving the quality of fresh, marine, surface and underground water in England and Wales.

Contact details for the Environment Agency.

Contact details for Natural Resources Wales.

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