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
Compare gas and electricity prices from the UK’s biggest providers, in just a few clicks.
Switch to Castle Water for award winning service and to save up to 20% on your business water
Sign up to receive your water services from Castle Water and we’ll donate £100 to Save the Children on your behalf. Alternatively, you can choose to receive £50 Castle Water account credit, or a £50 Amazon e-voucher.
– Danuta, Castle Water customer