Eon unbiased review: How do they compare?

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What’s in this review?


Are you considering switching to Eon?

Now, let’s see what they can offer you, plus what their customers are saying.


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Created in 1990, EON is one of the largest energy suppliers in the UK, being one of the ‘big six’ energy companies which have the majority of the market. According to their website, these are the three things that make up their companies mission.

1. Increasing demand for innovative customer solutions

2. The global growth of renewables as part of the effort to tackle climate change

3. The transformation to a smarter energy system

EON claims to serve over 5 million customers in the UK, reportedly posting a profit of €1.03bn (£904 million) in the first quarter of this year.

Costs and Fees

See the table below for an estimated quote of how much you could expect your monthly expenses to be. Check out the contract lengths and fees section for more information about the different tariffs.

E.ON Smart Saver v5
Monthly Estimate Yearly Estimate Exit Fee
£90.71 per month £1,088.52 per year £60

✔£60 Exit Fee (£30 Electricity, £30 Gas)
✔Agree to have smart meters installed
✔It’s a 12-month tariff
✔Simpler Discounts
✔You can have tariff if smart ineligible

Core services & offering

As well as offering a variety of energy tariffs, Eon also provides this multitude of benefits.

Boilers and smart thermostats

✔Tado smart thermostats and smart thermostat kits allow customers to control their heating wherever they are
✔New and replacement boilers
✔Boilers come with a Which? Best Buy endorsement
✔New central heating system with energy efficient boilers
✔New meters
✔Air source heat pumps, to use the air and electricity to create heat
✔Boiler grants

Home Insulation

✔Free cavity wall and loft insulation
✔Home insulation grants

Solar and Storage

✔Generate your energy
✔Become more energy independent
✔Save money on your bills

Customer Support

When it comes to customer support, Eon has some room for development as some customers have stated that they find Eon to be confusing and that there is poor communication.

Positive Customer Support Review

Harriss on Trustpilot:

Fantastic easy to reach customer services. Honest and accurate energy advice. Competitive quotes. Recommend contacting energy company for quotes on home energy improvement.

Negative Customer Support Review

Olwynn Frankton on Trustpilot:

If I could give no stars, I would. They have an amazingly confusing billing system which the staff when you ring them, can’t explain to you. They tell you that you can alter your direct debit payments online, but when I tried it was not possible because the “account is under annual review”.

Contract Length and Fees

E.ON Smart Saver v5

  • £60 Exit Fee (£30 Electricity, £30 Gas)
  • Agree to have smart meters installed
  • It’s a 12-month tariff
  • Simpler Discounts
  • You can have tariff if smart ineligible

E.ON Energy Fixed 1 Year v24

  • No Exit Fee
  • 12 Month Tariff
  • Simpler Discounts

E.ON Energy Fixed 2 Year v13

  • It’s a 24 Month Tariff
  • No Exit Fee
  • Simpler Discounts

E.ON Amazon Prime Saver v3

  • £80 Exit Fee (£40 Electricity, £40 Gas)
  • 12 Month Tariff
  • Amazon account required
  • Amazon Prime membership
  • Email address needed
  • Full detail included in T’s and C’s
  • Simpler Discounts

E.ON Fixed 1 Year tado° Bundle v2

  • £150 Exit Fee (£75 per fuel)
  • Claiming your tado smart thermostat
  • Email address needed
  • Full detail included in T’s and C’s
  • It’s a 12 Month Tariff
  • Payment by Direct Debit only
  • Simpler Discounts

EnergyPlan with Smart Pay As You Go

  • No Exit Fee
  • Prices are not fixed
  • Simple No Commitment

E.ON EnergyPlan with Prepayment

  • No Exit Fee
  • Prices are not set
  • Simple No Commitment
  • Annual Statement

E.ON EnergyPlan

  • No Exit Fee
  • Prices are not fixed
  • Price Change Pending
  • Simple No Commitment

E.ON EnergyPlan Assist

  • No Exit Fee
  • Price Change Pending
  • Prices are not set
  • Simple No Commitment

Eon Reviews

Eon does not have a positive customer reputation online with a 1-star rating on Trustpilot, with only 4% of the reviews positive and a massive 90% of reviews falling within the negative 1-star category.

Although online reviews are not always accurate or reliable, they are still an essential part of deciding whether you want to switch suppliers.

Positive Eon Review

Lauren Keenan on Trustpilot:

I’m very happy with Eon. They did take three months to set up my account, but as an apology, they wiped the bills for those three months. I had a complaints manager that communicated with me regularly and found it easy to get through and speak to someone when submitting meter readings.

Negative Eon Review

Marcin Florek on Trustpilot:

Very expensive, can’t sort simple things. They make mistakes than when you call to get sorted no one knows what to do when you want to switch to other company they just doing everything to make worse.

Company Comparison

Company Bulb So Energy Affect Eon
Overall Trustpilot Score ★★★★★ ★★★★★ ★★★★★
Discounts No No £15.75 per fuel per year Amazon Membership with selected tariffs
The average cost for dual fuel three bedrooms home £82 £78 £90.00 £102.39
Positive Reviews on Trustpilot 92% Positive 86% Positive 86% Positive 4% Positive

Who Should Use the Company?

Eon might be a good fit for a customer that wants the stability of receiving their energy from such a large supplier that has millions of customers nationwide.


Eon Review
  • Price
  • Range of services
  • Customer support


Eon is part of an international group that turns over hundreds of millions of pounds a year, with millions of customers both domestic and commercial. This means that customers can enjoy the stability of getting their energy from a large supplier, but there are also negatives that go into that such as reports of poor customer service.


  • A large variety of services
  • Lots of tariffs to choose from


  • Not as cost-effective as their independent competitors
  • Poor rating on Trustpilot
  • Only 4% positive reviews online