System Upgrade Underway: As part of our commitment to enhancing our customer experience, we are currently carrying out upgrades to our system. During this short period it may take longer than usual for your payments to be allocated to your account. We are aiming for payment allocations to be up to date by Tuesday 2nd June 2026.

Useful Resources

Find what you need in our library of useful resources.

Here you will find online forms, pricing and other information to help you manage your water services with Castle Water.

Regulations in Scotland are different to those in place for the newly deregulated market in England and the resources currently available to customers may be different.

Find resources in our user portal: