Please refer to the following advice on how to submit your final meter reading ahead of the transfer to South West Water on 1 April 2020: How to read your commercial water meter


The Council of the Isles of Scilly is the only Local Authority that acts as a Water Authority in England and Wales; by doing so we provide water to around one thousand and seventy domestic properties on St.Mary’s and Bryher. The procedure for reporting any issues with the supply of water is to contact the infrastructure department on 01720 424450 or email infrastructure@scilly.gov.uk 

What to do in an Emergency

Leak Detection

Water Meters

Water Rates

Water Query

Leak Detection

The Council of the Isles of Scilly monitor the levels of water consumption on St. Mary’s closely as it can be a good indicator for possible leaks. The exact location of leaks can at times be difficult to identify and can require the use of specialist equipment to detect and repair. Following a robust programme of leak detection and repair, we have seen levels of water consumption fall back into a steadier pattern as illustrated in the graph below. Water is a precious resource and water consumption levels will continue to be monitored closely in order to detect any possible leaks in the future.

Water Meters

We want to provide the best possible service for the most competitive prices to our water consumers and as such it is not the Council’s policy to provide water meters to domestic households. The main reason for this is the additional costs which would necessitate an increase to the charges to all domestic customers. The main reasons for an increased charge would be:

  • Staffing: There are currently two full time staff members running the water plant. Installing new meters would involve the employment of at least one more full time qualified employee to install, maintain and monitor these meters.
  • Installation & Maintenance: The cost of metering equipment can be expensive, as is the equipment needed to maintain it. Our geographic location also causes problems, for instance there are difficulties in obtaining parts promptly.
  • Unavailability: Where a property desires to have a meter but is unable to do so (such as most properties immediately on the highway, or where multiple properties are within a single building), a panel must meet to decide what costs should be incurred by the household. This panel requires a budget to cover the necessary paperwork, space etc. creating a further cost to the customer.

Water and Sewerage Rates 2019/2020

Domestic Supply

Price Per Year



Water - single occupancy rate




Sewerage - single occupancy rate


Vacant Unfurnished Property Standing Charge


Am I Eligible for a Discount?

Vacant Unfurnished properties are required to pay the annual standing charge only.

Furnished Properties are not eligible for a discount, however a disconnection can be requested.

Properties that are not being lived in due to renovation or construction works being undertaken upon them are required to pay Water & Sewerage Rates in full unless a disconnection is requested and a Construction Meter installed.

If you would like to apply for a discount please email infrastructure@scilly.gov.uk with the details and supporting evidence.


​I Would Like to Disconnect my Water/Sewerage 

Please complete this form and return to infrastructure@scilly.gov.uk  


What to do in an Emergency

If you find a leak or burst pipes in your home or garden, then please contact a local plumber who will be able to resolve your problem. If you see a leak or burst pipe that is in the road, on a pavement or any other public place, then please contact the Council's Infrastrcuture department on 01720 424450 or email infrastructure@scilly.gov.uk. At weekends or out of office hours on weekdays, please call 0300 1234 105.

Water Query

If you have a question, complaint or would like more information about your water supply, then please email infrastructure@scilly.gov.uk or call the Infrastructure team on 01720 424450. Alternatively, you can write to us at Town Hall, St Mary’s, Isles of Scilly, TR21 0LW. We will endeavour to deal with your enquiries within 10 working days.