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Estimates Only: This calculator provides estimates based on typical usage. Contact your water company for exact rates.
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Wondering if you should get a water meter? You are not alone — it is one of the most common questions UK households ask about their water bills. This free guide helps you check if a water meter would be cheaper for your home, with real 2026–27 rates and a simple rule that works for most people.
There is a straightforward rule that applies to most UK households. If you have more bedrooms than people living in your home, switching to a water meter will almost certainly save you money. According to CCW, the majority of households that switch end up paying less.
More bedrooms than people? A water meter is almost certainly cheaper for you.
More people than bedrooms? Staying unmetered might be better — but it is worth checking.
The amount you could save depends on your household size and property. This table shows typical annual savings based on 2026–27 UK water rates. Use our water meter calculator for a personalised estimate of how much you could save with a water meter.
| Household | Metered | Unmetered | Annual Saving |
|---|---|---|---|
| 1 person, 2-bed | ~£280 | ~£420 | Save ~£140 |
| 2 people, 3-bed | ~£380 | ~£520 | Save ~£140 |
| 3 people, 3-bed | ~£480 | ~£520 | ~£40 either way |
| 4 people, 3-bed | ~£580 | ~£520 | May pay ~£60 more |
* Estimates based on average UK water rates 2026–27. Your actual savings depend on your water company and usage.
Not sure if a water meter is right for you? These five indicators strongly suggest you would benefit from switching to metered billing.
This is the strongest indicator. Unmetered bills are based on property size, so if your home has spare bedrooms, you are paying for water you are not using.
Singles and couples almost always save with a meter. With only 1–2 people using water, your actual consumption is far below what an unmetered bill assumes.
If you take short showers, run full loads, and fix dripping taps promptly, a meter rewards your efficient habits. You only pay for what you actually use.
With unmetered billing, you pay the same whether you are home or on holiday. A meter means you pay nothing for water while you are away — ideal for frequent travellers.
If you are paying £400+ per year on unmetered water and your household is small, a meter could cut your costs significantly. Use our calculator to check.
A water meter is not the best choice for every household. Here are situations where staying on unmetered billing may make more financial sense.
Still unsure if you should get a water meter? The good news is that you do not have to commit permanently. UK water regulations give you a safety net that makes trying a meter completely risk-free.
Most water companies offer a trial period of 12 to 24 months after installing your meter. During this time, you can compare your new metered bills against what you would have paid on unmetered billing. If the meter costs you more, simply contact your water company and switch back — at no charge.
£0
installation cost
12–24
months to try it
Free
to switch back
This trial is required by GOV.UK water regulations. All water companies in England and Wales must offer it. You have nothing to lose by trying.
Ready to switch? Getting a water meter installed is simple and free. Here is the process in four easy steps.
Call or go online to request a free water meter from your water company
An engineer visits and fits the meter in 1–2 hours, usually within 2–4 weeks
Monitor your bills for 12–24 months — switch back free if it costs more
Common questions people ask when deciding if they should get a water meter.
Yes, water meter installation is completely free in England and Wales. Your water company is legally required to install a meter at no charge if you request one. The installation typically takes 1-2 hours and involves fitting a meter to your external stop tap.
Yes. Most water companies offer a 12 to 24 month trial period after installing a water meter. If your metered bills are higher than your unmetered charges would have been, you can ask to switch back within the trial window at no cost.
The actual installation usually takes 1-2 hours. However, from the date you request a meter, it typically takes 2-4 weeks for your water company to schedule and complete the installation. They will contact you to arrange a convenient date.
Your billing method changes from the date the meter is installed. Your final unmetered bill will be calculated up to the installation date, and metered billing begins from that point. You will not pay both metered and unmetered charges for the same period.
Savings depend on your household size relative to your property. A single person in a 2-bedroom home typically saves around £140 per year. Couples in a 3-bedroom property save a similar amount. The general rule is: fewer people than bedrooms usually means savings of £100-200 per year.
It depends on how much you water your garden. If you regularly use a hosepipe or sprinkler, your metered water costs could be high during summer months. However, if you use water butts or only water occasionally, a meter could still save you money overall.
Stop guessing and get a personalised answer. Our free water meter calculator uses your household details and 2026–27 rates to show whether a meter would save you money — in under 60 seconds.
Calculate My Savings NowUse these tools alongside this guide to make the best decision about your water billing.
For official guidance on water meters, visit these trusted UK sources.