Only Pay for the Water You Use
Stop overpaying on your business water bills
Switch to Castle Water and join thousands of UK businesses benefiting from fair, transparent pricing and award-winning customer support.
Why choose Castle Water?
We put fairness, transparency, and support at the heart of everything we do – offering award-winning customers service, accurate billing, and no hidden fees.
Other Water Suppliers
- Upfront switching charges (sometimes 3 months in advance)
- Billing in advance
- Billed using estimates
- Hidden fees
- Misleading quotes
- Less than 10,000 Trustpilot reviews
Castle Water
- No upfront switching charges
- Monthly billing in arrears
- Billed on estimates
- No hidden fees
- Instant online quote
- More than 20,000 5-star Trustpilot reviews
- Market leading meter reading performance - ensuring more accurate bills
Fair Billing
No pre-payments. No surprises. Just fair, in-arrears billing.
Award-winning Support
Rated 4.55 on Trustpilot with thousands of 5-star reviews.
Switching Made Easy
Seamless onboarding for all organisations.
No Hidden Fees
Everything is clear and upfront – the way it should be.
Can you switch water supplier?
You may have been led to believe that switching water supplier is a lengthy and intensive process. Castle Water makes changing water supplier easy.
You can receive a quote online in a matter of minutes, and our friendly Customer Service team are available to answer any questions you may have during the switching process. We take care of everything, letting you focus on the things that really matter.
When should you consider switching?
Thinking about changing your water company? Consider switching if:
- Your water bills don’t match your actual usage
- You notice unexpected increases in your bills
- You’re looking for more accessible benefits
- You need a clear, flexible payment model
- You operate multiple locations and want a simplified billing process
- You desire a user-friendly online account management system
- You feel you aren't getting the customer service you deserve
Small business
Large business
Multiple premises
Switch to Castle Water for specialist services
Switch to Castle Water for a sector-specific approach that meets the unique needs of your industry. Whether you’re a sole trader, commercial or industrial client, we offer tailored solutions and support for your business requirements.
Whether that be a simple water bill for an office, or a consolidated water and wastewater service for a large engineering or construction company.
When you switch to us, we’ll consider all the unique aspects of your business—from multiple premises to wastewater needs and effluent licences. Using this insight, we’ll secure the best fixed water rates tailored to your specific requirements.
FAQS:
Business owners in the UK can change water suppliers for better water rates. Since the business water market was deregulated in 2017, Castle Water has been the UK’s leading independent water retailer.
If you would like to consider switching water supplier but wouldn’t know who your supplier is, Castle Water can help. Learn how we can help you figure out who your current supplier is and enable the first steps in making a switch here.
If you have any questions at all about finding out who your current supplier is, let our water experts help you.
All you need to do is complete our online quote form. Our team takes care of the rest and manages the entire switching process for you.
We offer competitive rates and award-winning customer service and advice to help our customers to lower their bills, understand their usage, and improve efficiency.
If your business is split across locations or has multiple units billed separately (and through different companies), you can streamline with help from Castle Water. We undertake consolidated billing optimisation to reduce the load on paying water bills and ensure that respectable tariffs reflect similar usage across multiple locations.
We serve a wide range of locations across the UK. We offer market-leading water services to businesses, charities, and public bodies in England and Scotland.
During initial contact, it helps if you have information on how much you use, your bills, what charges your current provider has in place and your Supply Point Identification (SPID) number.
It’s really easy to combine your water and wastewater services with Castle Water and benefit from one tariff, one bill, one payment, one supplier.
No. You can still switch. Customers on a deemed contract are free to switch to other retailers, provided their account is not in debt and they are not party to a fixed term contract. We’ll guide you through the options and help you find a better deal.
Ready to make the switch and start saving?
Get an instant, no obligation quote and take control of your business water today.