Top 31 Energy Suppliers for Customer Service

What’s in this guide?


When it comes to energy supplier customer service, there is a host of things to consider.

And with many customers have seen savings of over £400 a year on their energy just by switching energy supplier, it might be time to change yours?


Let’s take a look at the best energy supplier customer service in the UK, including who they are and how much you could save.

Read on to find out more.

What should be taken into consideration?

So, now you’re interested in finding out about different suppliers, what should be taken into consideration to find the best one?

This is where you have to think about your personal preferences.

For instance, for many customers, the most crucial thing might be how much it costs, in other words, how much you could save.

Or, some customers might want a supplier that scores highly for customer service and handling complaints.

After all, having any problems handled right away is worth spending a bit extra, according to some reviews on Trustpilot.

Why switch energy supplier?

What are the benefits of switching supplier? Why not go with the first company that offers you a good deal?

Because it might not be the best deal for you.

Running a comparison website can help you to find out which energy suppliers can offer you the best deals, and how much you can be saving.

Best energy suppliers

Who are the top energy suppliers? Luckily, reports that take all of the most important factors into consideration can help with identifying some of the best energy suppliers in the UK.

Take a look at the table below; and below that, a breakdown of the top five on the list.

Supplier Bill accuracy and clarity Customer service phone Customer service online Dealing with complaints
1. Utility Warehouse (100) ★★★★★ ★★★★★ ★★★★ ★★★★
2. Flow Energy (44) ★★★★★ ★★★★★ ★★★★
3. Octopus Energy (40) ★★★★★
3. PFP Energy (39) ★★★★★
5. Utilita (58) ★★★★★ ★★★★ ★★★★ ★★★★
6. Avro Energy (40) ★★★★
6. Bulb Energy (37) ★★★★★ ★★★★
6. Ovo Energy (198) ★★★★★ ★★★★★ ★★★★ ★★★★
9. Ecotricity (40) ★★★★
9. So Energy (31) ★★★★★
11. Bristol Energy (30) ★★★★
12. Ebico (40) ★★★★★
12. First Utility (250) ★★★★ ★★★★ ★★★★ ★★★
14. M&S Energy (60) ★★★★ ★★★★★ ★★★★
15. Robin Hood Energy ★★★★
16. Iresa (39) ★★★★ ★★★
17. GB Energy Supply (34) ★★★★★
17. Green Star Energy (58) ★★★★ ★★★★ ★★★★
19. Co-operative Energy (148) ★★★★ ★★★★ ★★★ ★★★
19. Good Energy (35) ★★★
21. iSupply Energy (40) ★★★
22. EDF Energy (871) ★★★★ ★★★★ ★★★ ★★★
22. Eon (1,94) ★★★ ★★★ ★★★ ★★★
24. Sainsbury’s Energy (149) ★★★★ ★★★★ ★★★ ★★★
24. SSE (690) ★★★ ★★★★ ★★★ ★★★
26. British Gas (2,195) ★★★ ★★★ ★★★ ★★★
26. Scottish Power (822) ★★★ ★★★ ★★★ ★★
28. Economy Energy (40) ★★★
29. Extra Energy (40) ★★★
30. Spark Energy (40) ★★★ ★★★ ★★★
31. Npower (739) ★★★ ★★★ ★★★ ★★

Top 5 energy suppliers

Utility Warehouse

Utility Warehouse Business offers customers a range of solutions for your business energy needs, including dual fuel and single fuel options, and several incentives to help you save money over the year.

Flow Energy

Founded in 2013, Flow Energy aims to offer their customers friendly customer service, 100% renewable options and they promise to pick up the phone in under 30 seconds.

They currently have a high customer rating, with 4-stars on Trustpilot out of almost 4,000 reviews, making them one of the most positively reviewed independent energy suppliers in the UK.

Octopus Energy

Octopus Energy

Octopus only joined the domestic energy market in 2016, but they built their first solar generation plant in 2011. Since then, they have produced 154 solar farms in the UK and 66 projects in France.

They want to give their customers transparent and honest experience, doing away with long calls to call centres, letters piling up and renewable energy.

PFP Energy

PFP Energy

Launched in 2015, PFP Energy claims to make energy simple, only offering one fixed tariff and one variable tariff. PFP was rated highly in both of the Which? Energy Surveys, coming in third place in one year and second place in the other, thanks to its accuracy, clarity and value for money.

And that’s not all.

Many customers have said that PFP is a fresh breath of air in an otherwise confusing industry.



Utilita Energy aims to provide a real alternative to the ‘big six’ energy companies.

Founded in 2003, this company relies mainly on word of mouth and provides customers with excellent customer support and energy services they were also named a Which? Top energy supplier for customer satisfaction in 2018.

They do have a mixed reputation, however, as they were fined in 2015 by Ofgem for blocking customers from switching suppliers and they have not had a wholly positive response from gaining new customers via Toto in March of 2018.


Which energy supplier do you think is best?

What do you take into consideration when switching energy supplier?

Take a look at the EnergySeek guides to find out more about your energy, or see reviews of the top 7 energy switching sites to compare gas & electricity.