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Switch and save up to 20%

We're saving UK businesses up to 20% on their business water, with more 5-star Trustpilot reviews than all other water retailers combined.

Log in to MyAccount

Manage your Castle Water account on MyAccount.

MyAccount has everything you need to stay in control of your account, keep your bills up-to-date and your costs down, all in one place.
View and download invoices, check your balance and latest transactions, submit meter readings, find your meter and see consumption history.
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ONLY PAY FOR THE WATER YOU USE

It's easy to submit regular meter readings on MyAccount to help ensure your bills stay up-to-date. Regular meter readings help you to track water usage to improve efficiency, cut costs, assess water efficiency measures and detect leaks early.

Submit a reading

Switch and save up to 20%

There are a million and one reasons for a business to switch water supplier.

With more 5-star Trustpilot reviews than all other water retailers combined, our customers recommend us!

All it takes is one click to get started.

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Save water, save money

Making a few simple changes to your business will help you to save water, save money and reduce your carbon footprint. Better for you, better for the environment.

Water Efficiency Guide

Water management services

Our proactive business water services work to support efficiency, reduce costs and mitigate risk. We'll work with you to address the additional water management needs of your business and match them to our specialist partners. Our business water services include water management, wastewater treatments, trade effluent, water efficiency and emergency and contingency planning.

Our Services

Save the Children

Castle Water are proud to partner and support Save the Children’s Emergency Fund. In the critical first few hours and long after the initial emergency, Castle Water and Save the Children make sure children can get the safe, clean drinking water they need to survive.

Our Save The Children Partnership

Latest News & Blogs

What To Do When Frozen Pipes Burst

2/12/2021

With temperatures regularly dropping below zero, it's essential to protect...

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Why farmers need to prevent water pollution caused by run-off

30/11/2021

The Department for Environment, Food & Rural Affairs has detailed...

Read more
Castle Water gets 10,000th 5 star Trustpilot review

2/12/2021

Read more
Castle Water wins Customer Service Excellence Award

24/11/2021

Read more
View more

News

What To Do When Frozen Pipes Burst

2/12/2021

With temperatures regularly dropping below zero, it's essential to protect...

Read more
Why farmers need to prevent water pollution caused by run-off

30/11/2021

The Department for Environment, Food & Rural Affairs has detailed...

Read more
Castle Water gets 10,000th 5 star Trustpilot review

2/12/2021

Read more
Castle Water wins Customer Service Excellence Award

24/11/2021

Read more
View more

Looking to Switch Business Water Supplier?

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

Let Castle Water take care of all your business water and waste water requirements.

Save up to 20% on your bill with Castle Water!

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