Castle Water

Trusted by over 250,000 UK customers

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Castle Water is the UK's largest independent business water retailer, providing water and wastewater services to thousands of businesses, charities, and public bodies in England and Scotland. We're trusted by over 250,000 UK customers to provide better business water services.

We want our customers to know exactly who we are and what we do. That's why we've created the OurWaterWorld videos with the aim of helping to demystify the water industry and provide our customers with the information they need to make informed decisions about their water supply.

Log in to Castle Water MYAC to access your business water account, view your bills, make payments, and monitor your usage. You can also view and track your customer support cases, get email notifications for new bills and letters, and access improved validation and alerts for your meter readings.