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Water Charges

Unmeasured (Unmetered) Water Supplies

Unmeasured clean water charges are calculated using the Tax on Real Property (TRP) value of a domestic building (land, outbuildings and greenhouses are excluded from Guernsey Water's calculations).

The quarterly standing charge for unmeasured supplies has increased to £28.70.

The quarterly unit charge for TRP has increased to £0.56.

Measured (Metered) Water Supplies

Meter SizeQuarterly ChargeCharge Per Cubic Metre
15mm (1/2") (standard domestic size)£28.70 £2.01 
20mm (3/4")£42.80 £2.01 
25mm (1")£47.41 £2.01 
40mm (11/2")£53.35 £2.01 
50mm (2")£56.44£2.01 
75mm (3")£59.30 £2.01 
100mm (4")£65.21£2.01 

Wastewater Charges

Standing Charge

The standing charge covers the fixed costs inherent to maintaining the wastewater network e.g. asset monitoring, staffing. The standing charge for wastewater is £36.24  per annum for every household/business, or £9.06 per quarter.

Variable Charge

The variable charge covers the costs directly related to the amount of flow generated by each property's individual discharge e.g. sewer lining, pumping station repairs. Metered customers will be charged on 90% of the water that comes in through the meter at a rate of £0.70 per cubic metre. It is estimated that 90% of water goes to waste, this is an industry derived standard applied by many water and wastewater companies.

You can learn more about the Wastewater charge and download the charges as a PDF by following the links below

Wastewater Charge Information

Cesspit Emptying Rates

Subsidised single load rate: £7.32 . Subsidised double load rate: £14.64 

Standard single load rate: £18.40. Standard double load rate: £36.80 

Please note that cesspit emptying income is collected by States Works and can be paid by calling Edward T Wheadon House on 01481 717315

Customers with no wastewater facility

Customers with no drainage connection, either direct to the sewer or via cesspit are able to apply for a wastewater exemption. Applications can be made in writing to The Customer Liaison Team, PO Box 30, Brickfield House, St Andrews ,GY1 3AS. Or via email to

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