How to decide
A meter is most likely to help when you use less water than the property’s unmetered charge assumes. Fewer occupants than bedrooms is a useful clue, but a household-specific estimate is better.
What the calculator counts
The estimate uses typical volumes for showers, baths, washing machines, dishwashers and hosepipes, with a baseline for taps and toilets. It then applies a blended water and wastewater unit cost plus fixed charges.
Use your own company’s meter calculator or tariff sheet before making a final decision. Rates and fixed charges vary by region.
What to do next
- Find your latest bill and confirm the annual total.
- Run the calculation with a normal—not unusually frugal—week.
- Ask your water company for a meter assessment and its own estimate.
- Confirm the trial period and whether compulsory metering rules apply.
- Take regular readings after installation so you can compare.
Water meter questions
Is a water meter free?
Water companies usually install a meter for household customers without an upfront charge where installation is practical. Ask your appointed company about its current process and any assessed-charge alternative.
Can I switch back if a meter costs more?
CCW says customers can usually switch back to an unmetered charge within 24 months if unhappy, except where compulsory metering applies. The meter normally remains at the property for future occupants.
Who is most likely to save with a meter?
A common rule of thumb is that a meter may suit homes with more bedrooms than occupants, but actual habits and the existing rateable-value bill are more useful than the rule alone.