Water Meter Switch Calculator
See whether switching to a water meter would save you money, based on your household size and current unmetered bill. It's free to switch, and in England & Wales you can switch back within 24 months if it doesn't work out.
Estimate only. This is an estimate for information only, not a quote. Contact your water company for your exact charges and to arrange a meter.
Enter your household details
Your estimated metered bill, saving and verdict appear here as you type.
How your estimated metered bill is worked out
Without a meter, your water and sewerage bill is usually based on your property's old "rateable value", a figure from before council tax existed, with no link to how much water you actually use. With a meter, you pay for what you use: your estimated annual usage (occupants × average usage per person) multiplied by your water company's combined water and sewerage rate, plus a small fixed charge for having a meter. Because unmetered bills are tied to the property rather than the household, they can work out expensive for smaller households in bigger homes, the classic rule of thumb is that if you have more bedrooms than people living there, a meter usually works out cheaper.
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