Skip to content

Get a quote
Portal login
Business water services
Switch water supplier
Water efficiency
Trade effluent
News & insights
Help & support
About us
Careers
Contact us

Get a quote
Portal login
Business water services
Switch water supplier
Water efficiency
Trade effluent
News & insights
Help & support
About us
Careers
Contact us

About us
Careers
Contact us
Login

About us
Careers
Contact us
Login

Get Quote

Switch water supplier

Switch water supplier

Switch to Castle Water for award winning service and start saving on your fixed water charges.

get a quote

Changing water supplier

Multiple premises

Large premises

Small premises

Switch by industry

Switching FAQs

How to change water supplier?

Can I change water supplier?

Compare water suppliers

Business water rates are rising

With business water rates set to rise from April 2025, it’s vital that business owners understand what changes are occuring in their region.

find out more
Business water services

Business water services

Switch to Castle Water for award winning business water services for companies and organisations of all sizes.

get a quote

Water services

Water supply

Trade effluent

Wastewater management

New water connection

Additional services

Leak detection and repair

Contingency planning and water continuity

Automatic meter reading

Limpet readers

Water audits

Water bill validation

More 5-star reviews than any
other water retailer.
Water efficiency

Water efficiency

Save water and reduce your monthly bills with our practical water saving measures and helpful advice.

water efficiency resources

Water efficiency

Free efficiency resources

Request a water audit

Water saving devices

Business water leak detection

Water leak - who's responsible?

Detecting leaks in pipes

Report a leak

Leak detection, repair and assistance
Trade effluent

Trade effluent

Unlike other retailers, we have a dedicated trade effluent team ready to support you. Find out more about the resources available today.

apply for trade effluent consent

Trade effluent services

What is trade effluent?

Trade effluent removal

Trade effluent disposal

Wastewater treatment
News & insights

Castle Water and Bowls Scotland team up for World Water Day 2025

March 21, 2025

News

Castle Water shortlisted among top 8 UK businesses for Customer Satisfaction at British Business Awards 2025

Castle Water Acquires Brightwater, Strengthening Position as the UK’s Leading Independent Water Retailer

Castle Water CEO John Reynolds confirms water tariff increase from April 2025

Castle Water announces planned acquisition of Brightwater

Insights

What is water abstraction?

Save water, save money, and boost efficiency in 2025

Castle Water in the community: A year of partnerships in 2024

The journey from snowfall to business water

Case Studies

SUEZ Switch Over 200 Sites To Castle Water For Optimised Services And Solutions

Sweetening The Deal: Castle Water Resolve Loss Of Water Pressure At Leading UK Cane Sugar Manufacturer

How Castle Water Saved £6 Million For Customers In 2020 During The Pandemic

Drought Resilience Through Innovation
Help & support

Billing services

Pay your bill

How to pay

Setting up Direct Debit

Refund request

Bill explainer

VAT on business water bills

Metering help

Submit a meter read

How to read your meter

How to install, move, repair, or replace your water meter

Meter access charges

Meter networks & submeters

Useful documents

Scheme of charges

Terms & conditions

Policies & standards

Local supply issues

Other documents

Useful articles

Portal help

Who supplies my water?

How to report a leak

Flood prevention for businesses

Burst water main

Submit a request

Loss of water supply or pressure

Moving premises

Wholesaler queries & requests

Get water fit
Portal

Account

Account overview

Account details

Meters

Submit a meter read

View my meters

Premises

View my premises

Move into new premises

Move out / close premises

Statement of account

Statements of account

Letters & invoices

Letters and invoices

Support

Cases

Create a new case/support ticket