Household water bills in England and Wales are to rise by an average £19 a year over the next five years – a third less than the increase requested by companies, under draft proposals announced by Ofwat.

The regulator said water firms proposed increases averaging £144 over five years.

In North Wales, it is likely to be in the region of between £128 and £137.

For example, Thames Water’s proposed increase of £191 by 2030 has been reduced to £99, while Severn Trent’s proposed rise of £144 has been cut to £93.

There are significant variations in price changes between firms.

Under the plans, Southern Water customers will face a £183 increase over five years, while Dwr Cymru customers’ bills will go up by £137 and Yorkshire Water customers will pay £107 more.

At the other end of the scale, Affinity customers will see just an £11 rise, while SES customers’ bills will fall by £34 on the previous five years.

Ofwat chief executive David Black said: “Customers want to see radical change in the way water companies care for the environment.

"Our draft decisions on company plans approve a tripling of investment to make sustained improvement to customer service and the environment at a fair price for customers."

How much will your bills rise by?

Here is a full list of the draft proposals for the average bills customers will be charged by water and wastewater companies in England and Wales by 2029/30.

The average bill for 2024/25 is also listed, along with the increase or decrease between the two figures.

The proposals have been published by Ofwat.

The lists are arranged alphabetically.

  • Anglian Water: 2024/25 £491, 2029/30 £557, up £66
  • Dwr Cymru: 2024/25 £466, 2029/30 £603, up £137
  • Hafren Dyfrdwy: 2024/25 £396, 2029/30 £524, up £128
  • Northumbrian Water: 2024/25 £415, 2029/30 £460, up £45
  • Severn Trent Water: 2024/25 £403, 2029/30 £496, up £93
  • Southern Water: 2024/25 £420, 2029/30 £603, up £183
  • South West Water: 2024/25 £497, 2029/30 £561, up £64
  • Thames Water: 2024/25 £436, 2029/30 £535, up £99
  • United Utilities: 2024/25 £442, 2029/30 £536, up £94
  • Wessex Water: 2024/25 £508, 2029/30 £497, down £12
  • Yorkshire Water: 2024/25 £430, 2029/30 £537, up £107