Customer Notice

Our offices and phone lines will be closed on Monday 27 May for the Bank Holiday. We will reopen on Tuesday 28 May at 8am. You can still make a payment online. If you experience an emergency or unplanned disruption to your water supply and/or wastewater service whilst we are closed, please call your Water Network Owner. You can find a list of emergency numbers here. If you experience a problem with the water pipework inside your own building/site, you should call your plumber in the first instance.
Castle Water logo. Castle Water customer service update June 2018

Castle Water launches new PAYG arrangement

Castle Water is offering their existing business water customers in England the opportunity to take more control than ever before over how they pay for their water, with an innovative Pay as You Go arrangement.

PAYG is available for existing Castle Water customers in England with premises in the Thames Water, South East Water and Portsmouth Water areas.

Customers can sign up online for a PAYG account in just a few clicks at if they have a metered supply. Customers can create a bill anywhere between 30 and 90 days after their last invoice date, and can choose between using their own meter reading or asking Castle Water to read their meter.

PAYG accounts are not currently available to customers with an unmetered supply, who require trade effluent services, or who have previously signed up to a cashback agreement with Castle Water.

To find out more about PAYG accounts and apply online, visit

As well as providing 4-star Trust Pilot rated customer service, Castle Water offers customers a range of benefits, including cashback offers, and customer referral programmes.

Terms and conditions apply.

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