E.ON UK Reviews 

My previous review was about a totally inaccurate quote I was supplied with for 6800 kWH electricity usage per annum. I investigated and found that the provided quote was for 1638 kWh. I was not told that, and so I was under the impression that the figure supplied was for what I asked, 6800 kWH. Fortunately, rather than blindly signing up I felt it was too good to be true and worked the figures out myself, and yes, it was too good to be true, wildly inaccurate. E.ON’s reply to my poor review first stated that they were unable to quote for a defined usage, so my question is, if they can’t quote for 6800 kWH, how can they quote for 1638 kWh usage. FWIW, every other supplier I contacted for a quote on 6800 kWH usage supplied me with accurate quotes according to their published and current tariffs, so why can’t E.ON. If I can do it manually why can’t E.ON do it automatically instead of trying to suck me into a contract on false figures. Furthermore their reply suggested I take this issue out of the public eye and communicate via WhatsApp. Shady behaviour.

Useless. Sent 5 emails asking for help. Reply is we are looking into this and will reply. 3 months. I'm paying both. How? Copied emails from both octopus old saying they own gas and e.on saying they own both. Neither come back to me. Octopus gave me details of gas Meter and national database. Eon nothing. I shared with them.. How do I resolve. Go to energy obsman. Customer service useless. Disgraceful. Avoid. X

Over charge they admit they was wrong 7 years on still trying to get money back stay away from them

I have now been in dispute with EON since February 2026 regarding them not being my supplier since Oct 2025. Now four months down the line with no resolve. I've lost count how many times I've sent images of my meter and carried out kettle tests.
Despite constant assurances that my issue is being looked at by the metering team and guarantees that my case would elevated to a higher priority absolutely nothing has happened to progress my complaint. EON seem to think that me having to pay two suppliers for electricity is quite acceptable. As of June 22nd I'm still waiting on somebody to come back to me as opposed to having to chase up every two weeks to receive the same assurances with no resolve.

Poor customer service , worst company I ever had to deal with ..

Produced two separate account for the same name for the same address and they couldn’t explain how it happened ?

I was so glad to leave them as for months couldn’t get anywhere with them .

I recommend Scottish power with excellent customer services and competitive prices .

The Engineer did a good job and he was polite.

If i could 0 stars I would shocking treatment from these lot was originally leaving to go to Scottish power to be told we couldn’t leave due to a debt ok no problem arranged a plan to pay back as well as paying the bill we payed every week £50 then come home to find no gas or electricity got in touch with eon to be told Scottish power took over on the 10th of June ?? Had no correspondence from eon telling us as far as we were concerned with were still with eon they even took a last payment on the 19th of June and then cut us off and washed their hands of us freezer full of food nearly ruined while we sorted it out with Scottish power etc total shambles of a company and what we owe eon they can go and whistle for it .

After complaining about my direct debit they came with a solution to put me on to a variable direct debit. Great service and they resolved my complaint

Corrupt rotten company whose sole aim is to Skank as much money from public as possible

The lady l spoke to on Tuesday about the complaints phoned me today to confirm everything has been corrected
I am extremely pleased with being so quick in resolving all
Christine

i booked in a meter check as the cost of the bills was excessive.Twice on separate days no one turned up,they hadn't booked in a engineer at all.
Money taken out of my account that didn't match the invoice balance.
we had a next appointment booked for Monday 22/6 for the meter to be checked, they have just informed me that it has been cancelled due to me going to another supplier.
shoddy service.

Called today and made to speak to AI system first before reaching actual person who can understand you. And when finally connected to energy advisor (human) she said hello asked for my full name and then dropped the phone call after I told her my full name. Disgrace of a company!

Mark (M60282).engineer was a very communicative, helpful and as done great job. Making me understand how to use energy efficiently, generally he was a good man. Very neat and tidy work, I would have him back to my property work. I have given him 5 stars and would have loved to give more if I could

I am extremely disappointed with the service I have received.
I first noticed unusually high charges in September 2025. I promptly submitted meter readings, expecting my bill to be corrected. Instead, the charges increased.
In May, I again submitted updated readings and raised my concerns, asking for clarification, but received no response. I then escalated the matter to the complaints department.
Throughout the complaints process, I received several contradictory responses:

I was told my account had been billed using estimated readings for nearly a year
Then I was informed that my submitted readings had been updated and my account was in credit
Later, I was advised that there were no issues and everything had been checked and confirmed as correct
Finally, I was told the account was accurate but simply required ongoing meter readings

Despite all of this, after a prolonged discussion and multiple submissions of accurate readings, I was charged the same amount again in June (£148.82), with no visible correction applied.
This raises serious concerns about the accuracy of billing and the handling of customer complaints. Based on my experience, I have little confidence that customer concerns are properly reviewed or resolved.

We've just moved house, the house we moved into had recently been signed off with an electric safety certificate but a week after living there the power went off. EON came out with in hours, a really nice thorough engineer called Mark (M60282) did an amazing job in finding the issues and pretty much rewiring the whole fuseboard! Very thorough, very knowledgeable and very polite. Rare to see someone who takes so much pride in their work. Couldn't be happier.

I switched both my gas and electricity supplies to E.ON over two months ago, but only the electricity transfer was completed. Despite numerous phone calls and emails, E.ON has still failed to resolve the issue with my gas supply.

British Gas has confirmed there is no reason preventing the transfer, yet E.ON has repeatedly promised callbacks that never happen. Communication has been extremely poor, and I am constantly having to chase for updates.

As a result, my account is not on the correct tariff, and I have no clarity on what I am expected to pay. After more than two months, I am still waiting for a resolution.

This has been a very frustrating experience. I would expect a major energy supplier to handle account transfers more efficiently and keep customers properly informed. Unfortunately, my experience has been the opposite.

i feel like they change the rules according to what suits them, if it wasn't for the fact i feel every energy provider in the UK is the same i would change... what's the saying Same S...T different bucket.. Absolute Tripe. and please EON don't offer to look at my case because it wont get resolved because it doesn't suit you so please don't bother I'm not interested. 👍

We had Dan the engineer from EON arrive this morning to fit and sort out for my gas and electric smart meters. He did a great job, very professional, helpful and knowledgeable. An absolute credit to EON and I would highly recommend to anyone thinking of having smart meters fitted to contact them and get it done.

They are the scum of the earth, i told them i do NOT want to contract with them (after the disgusting way they were before) and they still think they can bill me for serviced i never asked for or wanted

then sent LCS to harass me relentlessly to attempt to get me to pay their imaginary bill

DO NOT CONTRACT WITH THIS SCUM!!!!!!!!!!!

Please avoid Eon unless you have plenty of time on your hands to be messaging and phoning them and then for nothing to be done.
If you have a question the staff just ask Google or AI and pass it on to you and it’s often incorrect.
Eon cannot seem to read my smart meter, or can they? They cannot make up their mind if it’s working or not ! So now I await an engineer visit week commencing 13th July in the morning. When I pointed out that week commencing is not an actual day but an entire week they assured me that an engineer will arrive on the 13th between 8 and 12, I am not holding my breath!!!
Eon have managed to put my bill right because they first mixed up the night and day readings. I am getting several bills a month and I would like just one monthly bill. Why send bills for just 6 or 14 days several times a month?

Why, after 3 months is the app only able to show a few hours usage in March?

When I was with Fuse the bills were correct and I could see my usage as I used it. What the point of a smart meter if you cannot see your usage for 3 or 4 months after you have used it?

If you switch to Eon be prepared for them to waste many many hours of your time.