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We provide services to retailers, inset providers/NAVs, wholesale providers, third parties and businesses, including charities and public sector organisations.

If you’re having problems with your water or wastewater supply or notice an issue on our network, please call the emergency number above. For non-urgent queries, our service desk is here to help. If you have a non-household related query please get in touch using the form below and we’ll get back to you within one business day. 

If you’re a domestic customer looking for support please visit the Thames Water residential site here.

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Alternatively, you can write to us at:

Thames Water, Wholesale Market Services, Clearwater Court, Vastern Road, Reading RG1 8DB.