How is my bill calculated? The way your water services bill is calculated depends on whether your property is unmetered or metered.Find out more about how your bill is calculated. Was this helpful? Yes No Please let us have any further comments you may have Thank you for your feedback Send feedback Live Chat Related articles Do you offer a single occupancy discount? What are your charges? How are metered bills worked out? Can I revert to an unmetered service after a meter is fitted?