E.ON UK Reviews 

Great service, Ryan (Midlothian area) was very helpful and full of info about the smart meter. Was very clean and efficent. All round great.

We have been trying to get a smart meter fitted to our home since January 2025. A failure by E.ON to address cross-referencing issues including repeated promises of contact/updates which then never happened were only resolved in December 2025 by a formal complaint to the Ombudsman.
Finally we were told the cross-referencing issue was fixed and we got an appointment booked to actually install the smart meter.
Unbelievably, given the history, the engineer did not turn up; we called the helpline to be assured that we should wait in as long as it took because they were definitely on their way, but they still never showed up.
Utterly dreadful customer service throughout the whole process - I would never use E.ON Next if I had a choice.

Horrendous service. Gave me a 4 hour appointment to ring me 5 minutes before the 4 hours was up to extend it by another 4 hours.

No offer of compensation despite me having to take the full day off work unpaid!! They’re quick enough to charge £40 when we cancel the appointment within 24 hours but no offer the other way round.

Shambles and a joke of a company

Just switched from Flex to smart Saver. Excellent prices. Easy to switch.

Paid alot of money for our home charger installation .. we didnt pay for us to overhear him slagging off our home on hands free in his car as I walk by.

E.ON Solar & Battery installation what a disaster ,told it would take two days it took five ,damaged solar panels no communication or updates given, no call backs or responses to emails ,SEG payment set up is very difficult no help given how you set it up ,used E.ON as they are my current supplier and thought it would be a easy experience ,they were not the cheapest to, the whole experience from having to unload the Solar panels and battery's my self out the back of a van to the scaffolders turning up and wrecking the garden has been a one big hassle

WORST COMPANY EVER.

Customer service is at best, useless, and at worst, comprised of incompetent liars.
8 calls over 2 days to get a meter back on supply, a promised engineer visit that never materialised, their only solution....to book another appointment and wait at the property for another 3hrs..... so far this has cost me £200 in cancelled work and still no resolution in sight.

We moved into our new home which was supplied by Eon. We contacted them straight away to let them know we are the new homeowners.
Without us knowing, they’ve done a HARD search on my credit report which has now had an impact on my credit score.
We decided to switch over to Octopus (who we was with at our old property) so was actually only with Eon for 2 weeks.
We’ve been waiting for the bill for the 2 weeks we were with them, and yesterday instead of receiving a bill, we received a threatening letter to pay £42.70 immediately or they would report on my credit file followed by not very nice text messages.
Eon, you are a disgrace of a company with absolutely zero customer service skills. At least send a bill and give customers chance to pay before sending threatening letters.

After probably 2 years of trying and multiple visits from technicians to get smart meters installed at our house. Ian visited and got our smart meters working.

This is one of the worst energy providers in the UK. They are devious and rely on an automated system that constantly sends threatening emails and letters if your bill is even a week or two late.

My bill arrives on the 11th of every month, and I pay monthly. I explained to them that I am paid monthly and will settle my bill accordingly, yet the threatening emails continue.

At one point, I only owed £25, and they added another £25 for a debt collector simply because the payment was two weeks late. It seems that because I declined to set up a direct debit—where they can freely take money from your account—they resort to threats if you fall even slightly behind, potentially affecting your credit score.

Stay far away from this garbage scam company. I will be moving to a different energy provider.

Looking to source an Engineer's visit for a replacement boiler ahead of moving to a new home and potentially becoming an E-on customer - What a shambles of an experience today!
6 Calls. Eon 0808 501 5200 inform me I need E-on Heat 0800 054 6250 - This Number is no longer working and it tells me to ring E-on Next on 0808 501 5200 ...whoops, that tells me I need E-on Heat on 0345 302 4312 - oh, this time it's someone in the UK, who struggles to tell me exactly the purpose of their business, except it heats water for homes in London and the Number I do need is 0330 400 1120... Ring that, and it tells you, this Number is NO LONGER IN USE!
USELESS!! However, what the day has reminded me is, why we left E-on many years ago!!!
Sadly, you've lost the opportunity to quote for a new installation and obtaining a new customer. Shocking service!

Really helpful installation by Ian (I10881)
Very quick and efficient and explained everything clearly when completed.

The telephone agent promptly arranged for an engineer to come out. Based on the information we gave explaining the issue seemed to be with the circuit box. Within about 90 minutes, the engineer arrived. They said they could only assess the meter, and not do anything about the circuit box. We needed an electrician. I thought this could have been identified during the call, which would have meant we could have called an electrician earlier.

Your business is based on having customers and in today’s world you are not capable in doing that. Unable to get a smart reading, my smart meter tells me my supplier Eon with the new rates etc and you can’t get a reading. So now on a fortnightly I have to give a reading.

Great service , very efficient and Ian explained all of the details on the new smart meter

New smart meters fitted today by Dave, very polite, explained everything clearly and within a couple of hours all done. Always been happy with the service from Eon, hopefully they continue to be competitive.

After saying they would change my tariff back to the original one I found they didn’t actually change the unit price only the name of the tariff after someone on this page told me they could not do nothing about it

A really hellish few months with this provider. The customer services Tanya, was pleasant enough but would mis-lead or diagnose queries, provide statements which simply transpired to be inaccurate and unhelpful. I was then sent rude and threatening letters and emails when clearly there was a financial issue. She declined to escalate the matter and I remain in dispute for approximately £265. She just keeps repeating the same mandate rhetoric about helping if it is not affordable. Highly incompetent. I have had to obtain an external auditor to assess the account due to miscalculations. I have never had such issues with providers. Very commercially aggressive provider, avoid if you prefer smoother service. .

We have already complained and the number was a ton on Jan 16th 2026