Will a water meter save you money?

How to find out if you’re better off with a meter or set rates.

Water meters can really divide people. Sometimes they can save you a decent chunk of cash every year, but others will see their bills rocket when one is installed.

I’ve always been unsure about them, but now after a few years of being charged for the water I use, I can share with you whether it was worth it for me, and how to estimate what one could mean for you. Plus I’ve some tips to help you reduce your usage and bring bills down further.

Who can get a water meter?

For most homes in England and Wales you can ask your water company to fit a water meter. It’s normally completely up to you. However, some water companies, including Thames Water, have made it compulsory.

It’s free to get a water meter installed in England and Wales. You’ve usually got one to two years after installation to compare costs. If you find it’s costing you more, you can switch back to your standard rates. That is of course unless you’re in an area with compulsory metering.

Some water meters are smart meters that let you monitor use. Others need to be read by the water company and you have to wait for your bill to find out charges.

In Northern Ireland your water rates are already included and in Scotland a water meter installation isn’t free. 

Should you get a water meter?

So how do you know if one is good for you? Well, non-metered water is charged based on the size of your house – a bit like council tax. Water meters on the other hand measure exactly how much you are using.

A simple rule of thumb to decide which is for you is if there are more bedrooms than there are people living in a house. If so then you’re likely to be paying more than you need to for your water.

If you want to get a more accurate picture, then there’s also an online calculator. That’s what I looked at before deciding whether to give the meter a go.

The calculator will give you a rough total which is estimated on exactly how many showers you have a week, how many times you use the dishwasher, washing machine, baths, how many times you flush the toilet and so on.

The problem is if you have more people in a house than there are bedrooms or people use water a lot – maybe you’re a keen gardener regularly using the hose – then it’s very likely to cost you more money.

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Did it save us cash?

Andy’s analysis

Because only two of us are living in a four-bedroom house there was always a good chance we’d be paying less with a water meter.

Back in the summer of 2018, before we switched, our annual bill was £590. The calculator estimated an new cost of £376 a year via a meter, a huge saving of £214. So it was a no-brainer for us to give this a try. 

Frustratingly, we couldn’t read the meter ourselves, and there was no bill at all for the first 13 months!! When it arrived the total for that first year was pretty close to the estimate at £390. A little more than the estimate, but we were still saving a fair wedge of cash each year.

However, since then, our water usage has increased. Water usage in 2019 was 102m3, but a massive 123m3 in 2020. This meant our bill jumped up to £480. Still a decent saving, but not as large.

I think a big part of this increase was thanks to lockdowns meaning we were both at home most days (and maybe having more baths in lieu of going out!).

Fortunately in 2021, the most recent bill I’ve got, usage was back down to 102m3. This came in at £410. That’s still £180 less than the non-metered charge from back in 2018. in fact, the saving will be bigger since that bill will have increased in each subsequent year.

So we’re likely to be roughly £700ish better off thanks to moving to a water meter. That’s a clear win.

Of course, that’s based on there just being two of us. I’ve played around with the calculator to estimate the cost if more people lived here. It’s still cheaper with three adults, but with four people it could easily be £70 or £80 extra each year than the fixed rates. So it’s important you check for your own circumstances.

When I think back to my previous house, where I lived for close to eight years, if we’d switched then and got similar savings we could have been close to a grand better off.

How to reduce costs when you have a water meter

If you’ve already got a meter because you’ve moved into a house with a meter, had one for more than two years or compulsory installations are happening, well there are still ways you can cut your bills and it’s very very simple. You use less water.

Work out what uses the most water

There’s another useful calculator from AqKWa you can use to identify where you can cut back on water use. It’s full on, but if you have three minutes to go through it properly you’ll get a good sense of whether you’ll get more bang for your buck by reducing your time in the shower or running the dishwasher less often.

If you can’t be bothered with that, there are obvious things you can do. For example, it’s making sure that you don’t necessarily flush the loo every single time. There’s that phrase “if it’s yellow let it mellow, if it’s brown flush it down”. It might sound a bit rough… but it’s true that you don’t necessarily need to flush it every time – and that will save some water.

Free water saving devices

In fact there are all sorts of things you can get which can help you use less water. From special bags that go in the water cistern to reduce the flush through to shower timers. There are even slow release crystals you can put in plant pots which mean you don’t need to water them as often. And they are free from most water companies.

For most providers you can go via Save Water Save Money and enter your postcode. You’ll see what’s available and what you can order for free. Alternatively, just google your water company and see if they offer anything for customers.

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4 thoughts on “Will a water meter save you money?

  1. I live in a block of flats. The Freeholders charge us for watering the communal garden.
    Can he choose the cheapest company to supply the water?

  2. I’m from the states and I’ve sold water meters (to water utilities) for the past 15 years. I am curious why you can’t read your own water meter – is it buried out of sight in the street?
    It always amuses me that in England, you are offered a choice whether to have a meter or not, and you debate about it. Here, the decision is made by the water utility, and now they have almost all installed meters. Smaller, more money-strapped utilities might not have meters. There is public resistance to meters when they are new in an area, but everyone gets over it. Metering water is the only fair way to charge for water, (although there is typically also a small fixed charge, also.) Can you think of anything else you consume that you don’t pay for? “Oh, I just pay a small charge and get all the food I want at this restaurant? Well fill up my doggie bag, then!” “I can have a Rolls Royce for the same price as a Fiat? Great!” Without metering, there is no motivation to conserve water. Water is a precious resource. And as long as we all keep making babies, we are going to need more and more water. It is easy to conserve water. But it’s hard to make Tea when the Thames is barely a trickle. You folks on your side of the Atlantic Puddle and we on our side all have the same planet to live on. Let’s all enjoy life and everything we have! Peace, my friends.

  3. Since the 90s, it’s been compulsory to fit water meters in new blocks of flats, so many people do not have a choice.

    1. Yes, and once it’s been switched in an older property it’s stuck that way too (after an initial 12 or 24 month period where you can switch it)

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