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Contact Developer Services

An update on Coronavirus

During these challenging times, we’ve made the decision to focus our resources on our first business priority. This is continuing to supply water and wastewater services, whilst keeping our customers and staff safe.

This means that unfortunately our developer services will be impacted and we're changing the service we offer during this time.

A Thames Water rep speaking on the phone

Call us

You can reach us on 0800 009 3921. Our lines are open from 8am to 4pm, Monday to Friday, and are closed at weekends and bank holidays.

If your hearing or speech is impaired, you can contact us using RelayUK.

Contact us online

Contact us online

Please only follow up if you really need to. It's taking longer than normal to respond to applications and emails at the moment - we're grateful for your patience and will get back to you as soon as we can.

Write to us

Thames Water
Developer Services
Clearwater Court
Vastern Road


We try our best to get things right first time. However, we realise that we occasionally don’t achieve the high standards we set ourselves.

If you’re concerned about any aspect of our service, please call us on the number above to discuss the matter.

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