Assessed household charge
We'll bill you using our assessed household charge only if we’ve tried, but can't fit a meter at your property. We base this on the typical amount of water used by customers with a similar number of bedrooms.
The number of bedrooms at your property is the number you’d quote if renting or selling your home. This includes bedrooms that may be used differently, like an office.
We'll apply a three-bedroom charge if you haven't told us the number of bedrooms at your home. When you update us on your property, we’ll amend your charge from that date.
Single occupier tariff
If you're on our assessed household charge and you live alone, we can put you on our single occupier tariff. This does not apply to single parents with children at the same address. We may ask you for proof of single occupancy.
How we calculate your bill
We work out your clean and wastewater charges based on the number of bedrooms at your property. Or if you've told us you're a single occupier.
We then add fixed charges of £62.88 for clean water and £128.83 (or £78.67 abated) for wastewater. These cover our essential running costs like pipe maintenance and bill and payment processing.
Example of a bill
The current example is based on the charges for a 3-bedroom property and is illustrative only. Your bill may be different.
Clean water charge for a 3-bedroom property = £312.86
Wastewater charge for a 3-bedroom property = £195.73
Fixed charges - £62.88 (water fixed charge) + £128.83 (wastewater fixed charge) = £191.71
Bill total - £700.30
You can view the assessed household charges for clean and wastewater for 2025-26 in the table.
|
Number of bedrooms |
Clean water |
Wastewater |
|---|---|---|
| Zero or one | £255.21 |
£159.66 |
| Two | £275.25 | £172.20 |
| Three | £312.86 | £195.73 |
| Four | £342.80 | £214.46 |
| Five or more | £382.63 | £239.39 |
| Single occupier | £211.66 | £132.42 |
If your bill doesn't look right please contact us. We may ask you to provide proof of the number of bedrooms.
Extra help and support
We can help provide you with financial support and extra help when you need it.
Get financial support
If you’re struggling to pay, there are many ways we can help.
Accessible contact options
You can contact us using British Sign Language, an interpreter or through Relay UK.
Easier to read bills
You can get your bills in braille, large text and on a coloured background.