Will I need a new meter to switch supplier?

Usually, no. You can typically switch while keeping your current meter. A meter exchange might only be needed if your meter is unsafe, faulty, too old to be supported, or if you request an upgrade (for example, to a smart meter). If you want to explore switching options, visit https://www.energyplus.co.uk/

Can I switch if I have a traditional (non-smart) meter?

Yes. Traditional credit meters are commonly supported and you can switch supplier in the normal way. You’ll just continue to provide meter readings (or submit them online) so your bills stay accurate. Switch and manage your account online: https://www.energyplus.co.uk/

Can I switch if I have a prepayment (PAYG) meter?

Often, yes. Many suppliers allow switching with a prepayment meter, but availability can depend on your circumstances (such as your tariff options or whether there’s any outstanding debt linked to the meter). If you’re eligible, your new supplier will explain how top-ups will work after the switch. Check your options with Energy Plus: https://www.energyplus.co.uk/

What types of ‘old meters’ can affect switching?

Most older meters won’t prevent switching, but some setups can require extra checks—such as very old metering equipment, complex multi-rate arrangements, or certain restricted meters. If your meter configuration is unusual, your supplier may ask for additional details (like meter serial number, photos, or recent readings).

Could an old meter stop my switch from going through?

It’s uncommon, but possible if there’s a technical issue with the meter, the meter details don’t match industry records, or the meter is unsafe or needs urgent replacement. In most cases, suppliers can resolve this by confirming meter information or arranging a meter exchange.

Do I need to provide a meter reading when switching?

Yes, you’ll normally be asked for a meter reading around the switch date. This opening/closing reading helps ensure your final bill with your old supplier and your first bill with your new supplier are accurate. For an easier switch, have a recent reading ready when you apply: https://www.energyplus.co.uk/

Can I switch if my meter is faulty or very old?

You may still be able to switch, but a faulty or unsafe meter could delay the process while the supplier investigates. If a replacement is needed, your supplier will usually arrange an engineer visit. This doesn’t necessarily stop you switching—it may just add a verification step.

Will switching supplier upgrade me to a smart meter automatically?

Not automatically. Switching supplier doesn’t require a smart meter. If you want a smart meter, you can usually request one from your supplier (subject to availability and suitability).

How long does it take to switch energy supplier in the UK?

Switching is often completed within a few working days, though timings can vary depending on meter type, checks required, and the details provided. You’ll be told your expected switch date during the application process. Start your switch online: https://www.energyplus.co.uk/

Will my supply be interrupted when I switch?

No. Your gas and electricity supply should not be interrupted during a supplier switch. Only the company that bills you changes—your energy continues to flow as normal.

What information do I need to switch with an old meter?

Typically you’ll need your address and contact details, and it helps to have a recent meter reading plus your meter serial number (usually printed on the meter). If you have them, your MPAN (electricity) and MPRN (gas) can also help speed things up. Get started here: https://www.energyplus.co.uk/

Can I switch energy supplier with an old meter in the UK?

Q: Can I switch energy supplier with an old meter in the UK?

Yes. In most cases you can switch energy supplier even if you have an older gas or electricity meter. Your new supplier will normally take over the existing meter and keep billing you as usual. If there are any meter-related issues (for example, a faulty meter or special metering setup), your supplier may contact you to confirm details before completing the switch. Compare tariffs and start your switch here: https://www.energyplus.co.uk/

In most cases, yes. If you’ve got an older electricity or gas meter (including Economy 7, prepay, or a traditional credit meter), you can usually switch supplier — but a few common issues can slow it down. Compare whole-of-market tariffs with EnergyPlus and check the best options for your home.

Find tariffs that work with standard, Economy 7 and many prepayment meters
Understand when an old meter needs an upgrade before switching
See what details you need (MPAN/MPRN, meter type, and readings)

Compare energy deals Read FAQs first

Home energy only. Switching is subject to supplier checks, meter compatibility and any debt/contract conditions. We’ll show you the clearest route based on your meter setup.

Compare energy prices even if your meter is old

An “old meter” usually just means it’s a traditional meter (not a smart meter), or a setup that’s less common (like Economy 7, a legacy two-rate meter, or an older prepayment meter). Most suppliers can still take you on — but your tariff choices may differ depending on how your meter records usage.

EnergyPlus is a whole-of-market comparison service for UK households. Tell us a few details and we’ll help you identify tariffs that fit your meter type — and flag if you’re likely to need a meter exchange before or after switching.

What you’ll need (takes 2 minutes)

Your postcode (to identify your supply point and region)
Basic contact details (to send your comparison results)
If you have it: recent bill or meter details (MPAN/MPRN and current supplier)

Prefer to understand compatibility first? Jump to old meter types or what can delay a switch.

So, can you switch supplier with an old meter?

For most UK households, having an old meter does not stop you switching. Energy suppliers are used to onboarding customers with traditional meters. The switch process is managed through industry systems using your supply identifiers (electricity MPAN and gas MPRN) rather than the age of the meter itself.

Usually: switch straight away

If you have a standard credit meter (single-rate) and no special setup, switching is typically straightforward. You won’t need a smart meter to switch.

Sometimes: fewer tariff choices

Older multi-rate setups (e.g., some Economy 7 arrangements) may limit which tariffs are available until your meter is updated or reconfigured.

Occasionally: meter exchange required

If the meter is faulty, incompatible, or linked to a complex setup, a supplier may ask to replace it. This is normally arranged as part of onboarding or shortly after switching.

Good to know: Suppliers generally can’t refuse a switch solely because your meter is “old”. The practical question is whether your meter type supports the tariff you want (single-rate vs two-rate, prepay vs credit, etc.).

Common “old” meter types in UK homes (and switching implications)

If you’re not sure what you’ve got, check your latest bill or look at the meter display. The type below matters more than the meter’s age.

Meter type	How to spot it	Can you switch?	Typical watch-outs
Standard credit (single-rate)	One reading register; no off-peak label	Yes, usually simple	Provide a final meter reading on switch day
Economy 7 / two-rate	Two readings (day/night) or R1/R2	Yes, but tariff choice varies	Some suppliers require compatible meter configuration; off-peak times vary by region
Older prepayment (key/card)	Top-up key/card; separate meter display	Often yes	If there’s debt on the meter, you may need to clear it or agree a debt plan
Legacy multi-rate / complex setups	Multiple registers; labels like “low/normal”; storage heating controls	Usually yes, but may need changes	May require meter exchange or rewiring of timers/controls for certain tariffs
Non-smart gas meter (standard)	Mechanical digits or basic digital display	Yes, usually simple	Ensure meter serial matches your bill when submitting readings

If you’re unsure what meter you have

You can still compare. Enter your postcode in the form above and, if needed, we’ll ask for one extra detail (like whether you have one reading or two). You can also look for “R1/R2” (two-rate) or check whether you top up using a key/card (prepay).

What can delay switching when you have an older meter?

Switching energy supplier in the UK is usually routine, but these are the most common issues that come up with older meters and legacy setups.

1) Meter configuration doesn’t match the tariff

For example, moving from an Economy 7 meter to a single-rate tariff can require the meter to be reconfigured or swapped. Some suppliers will only complete the switch if they can support your meter type from day one.

2) Outstanding debt on a prepayment meter

If your prepay meter is collecting debt, you may need to agree how that debt is handled before switching. In some situations, suppliers can transfer a debt arrangement — but it depends on circumstances.

3) Address and meter records don’t match

Older properties sometimes have mismatched supply records (e.g., flat numbers, building names, or historic changes). This can lead to a failed switch until details are corrected.

4) You’re mid-contract or on a fixed deal

An old meter doesn’t cause this, but it’s a common reason people pause. You may have exit fees if you leave a fixed tariff early (check your terms or bill).

How EnergyPlus reduces switch friction

We focus you on tariffs that fit your meter type (so you don’t waste time on ineligible deals).
We tell you upfront if a meter exchange is likely and what that means for timings.
We highlight what to gather from your bill (MPAN/MPRN and meter serial) if a supplier requests it.

How switching works with an old meter (step-by-step)

Whether your meter is brand new or decades old, the switching journey is similar. The difference is that older meter types may require extra compatibility checks.

Compare tariffs that match your setup
Start with your postcode and tell us if you’re on credit or prepay, and if you have one reading or two.
Choose a tariff and confirm your meter details
If requested, you’ll provide meter serial numbers and confirm whether you have Economy 7 / multi-rate.
Supplier completes industry checks
This includes validating your supply point and confirming your tariff is compatible with your meter configuration.
You submit a meter reading (or it’s estimated)
A final reading is used to close your old account and open the new one fairly.
If needed, a meter exchange is arranged
For some older or complex meters, your new supplier may book an engineer to replace or reconfigure the meter so you can access the tariff you want.

Will my supply be interrupted?

No — switching supplier doesn’t cut off your gas or electricity. The pipes and wires stay the same; only the company billing you changes. A planned meter exchange is different and is arranged separately.

Do I need a smart meter to switch?

No. You can switch with a traditional meter. Some tariffs may be designed around smart meters, but plenty of deals remain suitable for non-smart meters.

Benefits of switching even with an older meter

Access better rates

Old meter or not, tariffs change. Comparing helps you avoid staying on an expensive default rate when cheaper options are available for your setup.

Reduce admin and billing issues

A fresh start with accurate opening readings can help prevent estimated-bill problems that sometimes build up over years with older meters.

Choose a tariff that matches how you live

If you have Economy 7 or storage heaters, the right two-rate tariff can be a better fit. If you don’t use off-peak much, moving to single-rate (with the right meter setup) may help.

Common mistakes to avoid with older meters

Submitting the wrong readings (two-rate meters)

If your meter shows R1/R2 (or day/night), record both. Swapping them can cause billing corrections later. If you’re unsure which is which, take a photo and ask your supplier to confirm.

Assuming “old meter” means “ineligible”

Many households delay switching unnecessarily. The key is tariff compatibility — not whether the meter is smart. Compare first, then deal with any meter changes only if required.

Not checking for a complex heating setup

Some older homes with storage heaters have multiple registers or related control equipment. Mention this when comparing so you don’t choose a tariff your meter can’t support without changes.

Ignoring exit fees on fixed deals

Even if a switch is possible, it may not be cost-effective if you’re locked into a fixed tariff. Weigh any exit fee against the savings of a new deal.

FAQs: switching energy supplier with an old meter

Can I switch if I have Economy 7?

Yes. Many suppliers support Economy 7, but the best tariff depends on your off-peak usage. If you want to move to a single-rate tariff, you may need a meter reconfiguration or replacement.

Can I switch with a prepayment meter?

Often yes. Some switches can be slower if there’s debt on the meter or if the prepayment setup is older/less common. Comparing tariffs that specifically support prepay is important.

Will I be forced to get a smart meter?

You don’t need a smart meter to switch. If a supplier suggests a smart meter, it’s usually to improve billing accuracy or enable certain tariffs — but it’s separate from the act of switching.

Do I need my MPAN or MPRN to compare?

Not always. You can begin with your postcode. If a supplier needs extra verification (common with older or complex meters), your MPAN/MPRN can help ensure the supply is matched correctly.

Can an old meter cause my switch to fail?

It can, but it’s uncommon. Failures are usually caused by data issues (address mismatch), an unsupported meter configuration for the selected tariff, or unresolved prepayment debt arrangements.

What if my meter is faulty?

Report faults to your current supplier. If you’re in the middle of switching, tell the new supplier too. A meter exchange can usually be arranged, but it may affect timing and tariff eligibility.

Still unsure?

If you’re unsure whether you have a standard meter, Economy 7, or a legacy setup, you can still start the comparison. We’ll help narrow down the right options for your home.

Start my comparison

What UK households say about switching with older meters

“We thought our old Economy 7 meter would stop us switching. EnergyPlus helped us find a compatible tariff and explained what would happen if we moved to single-rate.”

— Customer in Yorkshire

“We’re on a traditional meter and hadn’t compared in years. The options were clearer than expected and the process was straightforward.”

— Customer in Greater Manchester

“We had an older prepay setup and were worried about delays. The comparison focused on tariffs that actually supported our meter type.”

— Customer in South Wales

Trust markers that matter

Whole-of-market approach for UK home energy comparisons
Clear signposting of meter compatibility and likely next steps
No need for a smart meter just to start comparing

Ready to switch — even with an older meter?

Start your whole-of-market comparison. We’ll focus on tariffs compatible with your meter type and highlight if a meter exchange is likely.

Compare energy deals Check meter types

EnergyPlus.co.uk provides comparisons for UK home energy. Availability and eligibility depend on your address, meter configuration, and supplier criteria.

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Updated on 21 Jan 2026