The forecast average Portsmouth Water household bill is £162 a year from 1 April 2026. That is £13 more than the £149 average for 2025/26.
Your total household cost will usually include a separate wastewater bill from another company. Do not compare this figure directly with a combined-company average.
What your bill includes
The published £162 figure covers clean water supply. Wastewater charges are billed separately in much of Portsmouth and south-east Hampshire.
Area and postcode guide
Portsmouth Water serves Portsmouth and south-east Hampshire. Postcode areas commonly associated with its region include GU, PO, but boundaries can divide a postcode and water and wastewater services may come from different companies.
Estimate your Portsmouth Water bill
The company average is a benchmark, not a tariff. A one-person metered home that uses water carefully can be well below it. A larger household may be above it. Use the calculator with your household size and a realistic usage level.
Your latest bill and the tariff published by Portsmouth Water are the authoritative sources for your charging zone, fixed charges and meter rates.
Portsmouth Water questions
What is the average Portsmouth Water bill in 2026/27?
Portsmouth Water's published water-only household average is £162 a year, equivalent to £13.50 a month. Individual bills vary.
Can I switch away from Portsmouth Water?
Household customers cannot normally switch their appointed regional water company. Eligible businesses in England can choose a water retailer.
Why might my bill be higher than the average?
A larger household, high metered consumption, a leak, a high rateable value or extra services can all result in a higher bill. Compare like with like and check whether your figure covers both water and wastewater.