Castle Water is the UK’s leading independent business water supplier

Castle Water offers services to any type of business or organisation located anywhere in the UK. Unlike many water suppliers, we are not associated with any of the UK’s traditional Water Network Owners. We are wholly independent and have an excellent track record of working proactively with Network Owners to give you the right service at the right price.

Our services

As your water supplier, we provide a range customer services including:

  • Automatic meter reading
  • Consolidated billing
  • Flexible payment options
  • Water efficiency advice
  • UK-based customer services
  • Extended opening hours, Mon – Fri, 8am – 6pm

Switch To Castle Water

As a business, you can now choose your water and wastewater supplier in the same way as you can choose your energy or telecoms provider.

Save up to 20% on your bill with Castle Water

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Benefits of switching to Castle Water

Our mission is simple. We’re here to provide an excellent water service for your business at the best possible price.

By switching to Castle Water, you can expect:

  • One easy-to-understand bill for all your water services
  • Accurate and efficient meter readings
  • Customer services tailored to your business needs
  • Practical advice to help your business improve water efficiency
  • Easy online self-serve tools to pay your bill, set up Direct Debits and much more
  • Consolidated billing for customers with multiple sites
  • Access to our specialist partners to support your additional water management needs

Our Offices


Castle Water Limited
1 Boat Brae
PH10 7BH

Castle Water Limited
Lower Mill Street
Blairgowrie and Rattray
PH10 6AQ

Castle Water Limited
32 Miller Road

The company also has offices in London, Portsmouth, Leeds and Glasgow.

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