Switch to Castle Water for award winning business water services for companies and organisations of all sizes.
More 5-star reviews than all other water retailers combined.
Switch to Castle Water for award winning service and to save up to 80% on your fixed water charges
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Switch to Castle Water for award winning service and to save up to 20% on your business water
Postcodes: OX3, OX4 | We are aware of an issue with your water supply. The Thames Water team are carrying out urgent repairs and will get your water supply back to normal as quickly as possible. For the latest updates, please visit Thames Water.
For better business water switch to the UK’s most trusted business water retailer
Making a switch shouldn’t feel like jumping over hurdles or impact any business operation. Castle Water’s switching process is simple...
Get an instant quote online from us
We take care of all the hard work and ensure a smooth transfer
You run your business as normal
Questioning if you can change water supplier? All it takes is one click to get started. Most of our customers switched to us for a better deal and better service. Switch when…
Manage your account safely and securely online anywhere, anytime from your desktop or smartphone.
Manage payments and find invoices and statements for one or multiple accounts all in one place.
Find your meter, submit meter readings and track usage to make sure you only pay for the water being used.
Set up Direct Debit quickly and securely for all your accounts in just a few minutes using the portal.
Find the answers you need, track support cases and submit requests faster than ever before.
Whether you’re a small company or a larger industrial customer with several sites and complex wastewater needs, we’ll give you a better water service.
Simply enter your postcode and a few more details and you can get an instant quote for your business water and wastewater.