• SAVE WATER

    Help your business save water and money.

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  • CUT YOUR COSTS

    Reduced rates and improved services.

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  • HOW TO SWITCH

    Switching is easy. Just follow these easy steps.

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  • HOW TO PAY

    Learn more about your payment options.

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Latest news and case studies

Stop fatbergs impacting your business

Castle Water customers help raise a further £30K for Save the Children’s Emergency Fund

Castle Water’s 2018 Customer Service Performance

Castle Water employees raise £1,089 for Save the Children’s Christmas Jumper Day

Castle Water supports Save the Children’s Christmas Jumper Day

University benefits from £25.5k savings per year on water bill

Large Water Users

From dedicated account management to consolidated billing and technical support, we offer a range of specialist services for large and multi-site customers.

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  • WATER MANAGEMENT

    Get the most from your water services.

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  • ONE SIMPLE BILL

    For water, wastewater and multiple sites.

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  • HELP & ADVICE

    Speak with an advisor online right now.

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