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Save Money5 min read3 August 2026

How to reduce your water bill in the UK

You cannot switch water companies, but that does not mean your bill is fixed. A water meter, usage habits, and social tariff schemes can all meaningfully reduce what you pay.

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General information only. This article is for general information and educational purposes. It does not constitute financial, debt, benefits, tax, legal, or regulated advice. Information may change — always verify with official sources or a qualified adviser before acting.

Water is one of the few household bills where switching supplier is not an option — in England and Wales, your water company is determined by where you live and cannot be changed. But that does not mean your bill is completely out of your control. Several things can significantly reduce what you pay, and most of them cost nothing to set up.

A water meter is often the biggest single change

If you are on an unmetered tariff, your bill is based on the rateable value of your property rather than how much water you actually use. This can mean you pay significantly more than your actual consumption warrants, particularly if you live alone or in a smaller household in a larger property. Switching to a water meter means you pay only for what you use. Most water companies are required to offer you a free meter switch, and you usually have two years to revert to the unmetered tariff if you find it costs more. A useful rule of thumb is that a meter tends to save money if there are fewer people in the house than there are bedrooms.

WaterSure if your bills are unavoidably high

WaterSure is a government-backed scheme for metered customers who have high water usage through no choice of their own — for example, because someone in the household has a medical condition that requires frequent washing, or because there are three or more children under nineteen living at home. If you qualify, your bill is capped at the average metered bill for your area. You need to apply through your water company and show evidence of eligibility.

Social tariffs from your water company

Most water companies in England and Wales now offer some form of social or low-income tariff for customers who are struggling to pay their bills. The name and structure varies by company — it might be called an Assistance Tariff, an Affordability Scheme, or something else. These are not widely advertised, which means many eligible customers are not aware they exist. Searching your water company's website for "affordability" or "financial support" is the easiest starting point, or calling them directly.

Small usage habits that add up

If you are metered, usage habits genuinely affect your bill. Showers tend to use significantly less water than baths. Fixing a dripping tap is worth doing — a tap dripping once per second wastes around five thousand litres of water per year. Running a dishwasher on an eco setting uses less water than hand-washing a full load. These are not dramatic changes, but across a year they move the number.

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Ask Fin provides general guidance only, not regulated financial or utility advice. Water tariff schemes and eligibility vary by company and region. Always check directly with your water provider for the most accurate information.

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