Most gardeners use more water in the summer which is why it is a good idea to have a water metre installed  http://www.uswitch.com/water/what-water-meter

Many water companies do not charge to have a water metre and it is an easy thing to do:

• There are over 20 companies supplying water in England and Wales.
• Scotland has only one water authority.
• Northern Ireland has only one water authority and domestic customers do not have to pay water rates.
• There are water only companies and combined water and sewerage companies.
• You can pay a standing charge for water or have a meter.
• Water rates differ across the UK.
• You cannot switch your water supplier.

To find out more information about your water company click on a logo below.