There are over 20 companies supplying water in England and Wales. Scotland and Northern Ireland have only have one water authority each.
Water rates can differ across the UK and unlike other utilities you can not switch your water supplier.
The companies listed below can offer all kinds of advice to help you save money on your water bills.
The data we use to work out energy and water costs come from a range of reliable international sources to give an average figure. Figures are rounded up or down to the nearest whole number.
* Total amounts potentially saved do not include lighting in individual rooms, or use of secondary heating.
EcoFrenzy has researched the market and to the best of our knowledge, figures and data are accurate at the time of publication.
EcoFrenzy is not responsible for any inaccuracies and will not engage in correspondence, but will update facts and figures when necessary or appropriate.