Business water shouldn't be complicated
If you’re juggling bills, stressing over compliance, or guessing at usage, it’s time to consider a switch.
We simplify your business water management services and help you to stop overpaying.
Complete your details below for an instant, no obligation quote.
Take control of your business water
Most businesses don’t realise how much time, money and risk their water supplier is costing them, until they look closely.
Worried about non-compliance?
Trade effluent regulations are complex and getting it wrong is expensive. Our specialist team helps you stay compliant and in control.
Still paying in advance? STOP
We help you preserve cash flow in your business by billing in arrears, so you only pay for the water you have actually used. No more advanced payments based on estimates.
Advance account management
Our advanced customer portal puts everything at your fingertips. Monitor usage, submit readings, view invoices and get clear consolidated billing for multi-sites.
Always there when you need us
Sometimes you need to speak to an actual person. Our Customer Service Team have over 21,000 5-star reviews on Trustpilot. We’re fully independent from wholesalers, so we always have your back.
Simplify the management of your business water
Our customer portal offers advanced account management with a host of services at your fingertips, enabling you to manage your water with clarity and control.
Our online portal gives you:
- Full account control – real-time visibility, usage tracking and bill downloads
- Multi-site management – manage all locations in one dashboard
- Alerts and insights – spot unusual usage early and submit meter readings easily
- Quick support access – get help whenever you need it
No spreadsheets. No chasing invoices. No guessing.
“Castle Water continue to provide exceptional service and support. Consolidating all our sites with Castle Water has generated real efficiencies and cost savings, and they deliver vital support in the management of our business water across the UK.”
Procurement Officer at SUEZ
Ready to reduce your water bills?
Start by cutting waste.
Download our free water efficiency guide and discover a 4-step water efficiency action plan to reduce usage and lower costs. Small changes can deliver big savings.
Inside the guide:
- Quick wins that lower bills immediately
- 4-step water efficiency action plan
- How to identify hidden leaks
- Ways to reduce unnecessary consumption
- Water saving devices
Switching water retailer is easier than you think
We handle the process. You stay focused on running your business.
Get a quick quote
Enter your business details - it takes minutes
We manage the switch
We make transfer process seamless by liaising with your current supplier
Start saving and gain control
Better visibility. Simpler billing. Ongoing support.
Ready to make the switch and start saving?
Get an instant, no obligation quote and take control of your business water today.
© 2026 Castle Water. All rights reserved.