SmartestEnergy Business Reviews 5,458

TrustScore 4 out of 5

4.2

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Review summary

Created with AI, based on recent reviews

Reviewers had a great experience with this company. Customers consistently praise the staff for their helpfulness, patience, and professional approach, often highlighting individuals who went above and beyond to assist them. The customer service is frequently described as excellent, with many people appreciating the efficiency and quick responses, making interactions pleasant and productive. However, some customers also noted significant issues with the service, including prolonged delays in resolving problems and billing discrepancies. A few other people also felt that response times were slow, and there were instances of payment processing difficulties and account reconciliation challenges.

What people talk about most

Staff

Reviewers mention positive feedback about staff. Customers frequently praise the helpfulness,... See more

Customer service

Clients share positive opinions on customer service, with many praising helpful and efficient agents who... See more

Service

Customers had ambiguous experiences with service. Many reviewers praised individual staff members for their... See more

Response time

Consumers find response times to be ambiguous. Some customers report quick and efficient responses, praising... See more

Payment

Reviewers highlight negative aspects of payment, with many customers reporting persistent billing... See more

Reviews shaping this summary

Rated 4 out of 5 stars

Very polite and helpful. Although problem could not be resolved straight away, further action has been taken and Smartest Energy are looking at the issues and hopefully will come back with a quick res... See more

Company replied

Rated 4 out of 5 stars

I have had good experiences dealing with the company till now.The person I spoke on this occasion was very patient with me and tried her very best to help.I cannot fault her handling of a difficult c... See more

Company replied

Rated 5 out of 5 stars

The advisor contacted me before I finished reviewing the quotes to see if I had any problems. The prices quoted were excellent and there was no pressure on us to accept. I went back after a few days a... See more

Company replied

Rated 5 out of 5 stars

Very swift sign-up process and clear quoting. No idea of ongoing service yet, but already have a much more favourable impression of Smart than Yü, or the various brokers. Mikey was very clear and prof... See more

Company replied


Company details

  1. Energy supplier
  2. Electric utility company
  3. Fuel supplier
  4. Gas company
  5. Green energy supplier

Written by the company

SmartestEnergy Business is part of the UK’s leading purchaser of independent generation and supplier of renewable electricity. We are 100% focused on the energy needs of small-medium businesses and to date have helped over 100,000 customers to control their costs through low electricity and gas supply prices, free smart meter technology & dedicated customer services.


Contact info

4.2

Great

TrustScore 4 out of 5

5K reviews

5-star
4-star
3-star
2-star
1-star

Replied to 100% of negative reviews

Typically replies within 24 hours

How this company uses Trustpilot

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Rated 5 out of 5 stars

Extremely helpful customer service

13 April 2026
Unprompted review
SmartestEnergy Business logo

Reply from SmartestEnergy Business

Thank you for taking the time to write a positive review of SmartestEnergy Business and rating our service as excellent. Many thanks for your custom.

Best Regards
The SmartestEnergy Business Team

Rated 5 out of 5 stars

Jamie Lee has been very helpful and…

Jamie Lee has been very helpful and sorting out the problem we have with the meter reads for me.

Left me her email so can deal direct with her on this matter.

13 April 2026
Unprompted review
SmartestEnergy Business logo

Reply from SmartestEnergy Business

Thank you for taking the time to write a positive review of SmartestEnergy Business and rating our service as excellent. We're pleased that you received a helpful service from our advisor Jamie Lee. Your feedback has been passed on. Many thanks for your custom.

Best Regards
The SmartestEnergy Business Team

Rated 5 out of 5 stars

Sandra was really helpful and…

Sandra was really helpful and efficient. She listed to what I needed and then resolved all my issues: getting me the new account number and sending me the link to set up our Smart Web account.

13 April 2026
Unprompted review
SmartestEnergy Business logo

Reply from SmartestEnergy Business

Thank you for taking the time to write a positive review of SmartestEnergy Business and rating our service as excellent. We're pleased that you received a helpful and efficient service from our advisor Sandra. Your feedback has been passed on. Many thanks for your custom.

Best Regards
The SmartestEnergy Business Team

Rated 5 out of 5 stars

I talk with Customer service and…

I talk with Customer service and payment team I found they are helpful. But the company Not a enough Clear with they're Services, I am six months with this company my account consultant still can't access In to my portal to see my Invoice.
What are this....?

13 April 2026
Unprompted review
SmartestEnergy Business logo

Reply from SmartestEnergy Business

Thank you for taking the time to write a positive review of SmartestEnergy Business and rating our service as excellent. We're pleased that you received a helpful service from our advisor. Your feedback has been passed on. Many thanks for your custom.

Best Regards
The SmartestEnergy Business Team

Rated 1 out of 5 stars

Absolutely shocking service from…

Absolutely shocking service from Smartest Energy.

Had the commerical property from December 2025 to April 2026 and spent FOUR MONTHS trying to do something very simple—set up an account and pay for the electricity I was using. Despite repeated calls and emails. because of a previous tenant’s debt. I was refused the ability to open an account or switch supplier. So I was left in the absurd situation of actively trying to pay for electricity and being prevented from doing so because of someone else’s unpaid bill.

This is beyond unacceptable—it’s completely incompetent.

What makes it even worse is that the issue STILL hasn’t been fixed. The new tenant is now dealing with the exact same problem, and unbelievably, the electricity has now been completely cut off.

I have emailed multiple times and nothing meaningful has been done. No resolution, no urgency, no accountability.

I have now taken this matter further and referred it to the Ombudsman.

Denying people access to a basic utility over someone else’s debt is disgraceful. This has gone on for months and is now affecting multiple tenants.

Avoid at all costs.

11 April 2026
Unprompted review
SmartestEnergy Business logo

Reply from SmartestEnergy Business

Thank you for leaving a review of SmartestEnergy Business. We're sorry to learn of your experience, unfortunately we cannot locate your account from the reviewer name. Please provide the information requested by the secure Trustpilot request and we'll forward your enquiry to our Customer Services.

Best Regards,

The SmartestEnergy Business Team.

Please note this is a standard response from our review monitoring team. For your data protection, we will not directly respond here to your review and advise not posting any sensitive account information via the open Trustpilot platform.

Rated 5 out of 5 stars

Very happy with Ahsen and Lily

Very happy with Ahsen and Lily. Simple process and very nice to speak to

10 April 2026
Unprompted review
SmartestEnergy Business logo

Reply from SmartestEnergy Business

Thank you for taking the time to write a positive review of SmartestEnergy Business and rating our service as excellent. We're pleased that you received a professional service from our advisors Ahsen and Lily. Your feedback has been passed on. Many thanks for your custom.

Best Regards
The SmartestEnergy Business Team

Rated 1 out of 5 stars

This company is either incompetent or…

This company is either incompetent or willfully neglectful - Since we took over our building in September 2025, the electricity meter has not been working so we have been bombarded with Over estimated bills, running into thousands - Theire customer service is utterly useless, and we'v been pushed around from pillar to post with no help, They even sent bailiffs to our property, despite us paying the bills. They are utterly unprofessional, bungling and ineffective. They are everything that is wrong with UK ulitiy providers - We've reported them to Ofgen. If you're thinking of using these clowns, please don't. They are utterly useless.

Update: after receiving the reply below, I immediately sent Smartest the complaint information againt, only to be met with... silence.

Nothing.

Not even an acknowledgment. I guess this response was just for effect.

Can I remove the one star please Trustpilot?

9 April 2026
Unprompted review
SmartestEnergy Business logo

Reply from SmartestEnergy Business

Thank you for leaving a review of SmartestEnergy Business. We're sorry to learn of your experience, unfortunately we cannot locate your account from the reviewer name. Please provide the information requested by the secure Trustpilot request and we'll forward your enquiry to our Customer Services.

Best Regards,

The SmartestEnergy Business Team.

Please note this is a standard response from our review monitoring team. For your data protection, we will not directly respond here to your review and advise not posting any sensitive account information via the open Trustpilot platform.

Rated 5 out of 5 stars

Very helpful

Jamie Lee was very helpful - despite having had been a victim of a fraudulent Change of occupancy

10 April 2026
Unprompted review
SmartestEnergy Business logo

Reply from SmartestEnergy Business

Thank you for taking the time to write a positive review of SmartestEnergy Business and rating our service as excellent. We're pleased that you received a helpful service from our advisor Jamie Lee. Your feedback has been passed on. Many thanks for your custom.

Best Regards
The SmartestEnergy Business Team

Rated 5 out of 5 stars

Ollie Brockett was a great help in…

Ollie Brockett was a great help in securing me a fantastic energy deal for my business, thank you Ollie!

10 April 2026
Unprompted review
SmartestEnergy Business logo

Reply from SmartestEnergy Business

Thank you for taking the time to write a positive review of SmartestEnergy Business and rating our service as excellent. We're pleased that you received a professional service from our advisor Ollie. Your feedback has been passed on. Many thanks for your custom.

Best Regards
The SmartestEnergy Business Team

Rated 1 out of 5 stars

Terrible Service

We are a small charity and have received the worst service to date from any energy provider. Smart meter not working and they still haven’t sorted it in 4 months despite my emails, calls and a complaint being raised. Potential overbilling on estimated reads. Absolutely shocking!

10 April 2026
Unprompted review
SmartestEnergy Business logo

Reply from SmartestEnergy Business

Thank you for leaving a review of SmartestEnergy Business. We are sorry to learn of your experience. We have located your account and forwarded this to our customer services for further investigation. We hope to restore your confidence in our services.

Best Regards,
The SmartestEnergy Business Team

Please note this is a standard response from our review monitoring team. For your data protection, we will not directly respond here to your review and advise not posting any sensitive account information via the open Trustpilot platform.

Rated 1 out of 5 stars

I recently placed a review for the…renewals

I recently placed a review for the renewals handler who dealt with our contract, I will now say I was wrong!

(Complaint Ref: AIS7791303) Renewal rates not updated! Our bill is currently coming in at over £1000 per month more than it should be

Having spoken to several people it appears that the renewals team have not applied the new contract rates (arranged on 15th January) as there were issues manually entering the new rates onto their system and as such we are currently being charged the ‘out of contract rate’. The person I spoke to said that they are working on sorting this out but couldn’t give me a timeframe for resolution.

I asked if we could just NOT pay the bill until it was resolved and she said no, it had to be paid but we would receive a credit when it was resolved. I was quite insistent that we were a small company that could not afford these kinds of errors and she said there was nothing more to be done.

The customer services team are as useful as a snowflake in a furnace! They say they are raising a complain but when you call back up they have no record of the complaint reference, they wont even send you a copy of the complaint for record purposes.

The renewals team talk the talk when renewing the contract but clearly dont follow through when the contract is signed. I highly doubt we will be sticking with Smartest Energy when this contract is complete

1 April 2026
Unprompted review
SmartestEnergy Business logo

Reply from SmartestEnergy Business

Thank you for leaving a review of SmartestEnergy Business. We are sorry to learn of your experience. We have located your account and forwarded this to our customer services for further investigation. We hope to restore your confidence in our services.

Best Regards,
The SmartestEnergy Business Team

Please note this is a standard response from our review monitoring team. For your data protection, we will not directly respond here to your review and advise not posting any sensitive account information via the open Trustpilot platform.

Rated 5 out of 5 stars

The girl was very helpful

The girl was very helpful

8 April 2026
Unprompted review
SmartestEnergy Business logo

Reply from SmartestEnergy Business

We appreciate you taking the time to write a positive review of SmartestEnergy Business and rating our service as excellent. Many thanks for your custom.

Best Regards
The SmartestEnergy Business Team

Rated 5 out of 5 stars

Mikey was great

Mikey was great, he explained everything to me perfectly and was so helpful.
I was so refreshing to speak to someone so quickly and get everything sorted for the business.
Will recommend in future

7 April 2026
Unprompted review
SmartestEnergy Business logo

Reply from SmartestEnergy Business

We appreciate you taking the time to write a positive review of SmartestEnergy Business and rating our service as excellent. We're pleased that you received a helpful service from our advisor Mikey. Your feedback has been passed on. Many thanks for your custom.

Best Regards
The SmartestEnergy Business Team

Rated 5 out of 5 stars

Sipho was polite

Sipho was polite, friendly & professional. She did what I needed and did it quickly.

8 April 2026
Unprompted review
SmartestEnergy Business logo

Reply from SmartestEnergy Business

We appreciate you taking the time to write a positive review of SmartestEnergy Business and rating our service as excellent. We're pleased that you received a professional service from our advisor Sipho. Your feedback has been passed on. Many thanks for your custom.

Best Regards
The SmartestEnergy Business Team

Rated 5 out of 5 stars

A speedy solution to a problem

Sandra was very polite, answered all my questions and solved by problem in a few minutes. She followed up with an emailed document that made everything clear

8 April 2026
Unprompted review
SmartestEnergy Business logo

Reply from SmartestEnergy Business

We appreciate you taking the time to write a positive review of SmartestEnergy Business and rating our service as excellent. We're pleased that you received a professional service from our advisor Sandra. Your feedback has been passed on. Many thanks for your custom.

Best Regards
The SmartestEnergy Business Team

Rated 5 out of 5 stars

the customer service representative…

the customer service representative Clint was patient kind and courteous

excellent

2 April 2026
Unprompted review
SmartestEnergy Business logo

Reply from SmartestEnergy Business

We appreciate you taking the time to write a positive review of SmartestEnergy Business and rating our service as excellent. We're pleased that you received a professional service from our advisor Clint. Your feedback has been passed on. Many thanks for your custom.

Best Regards
The SmartestEnergy Business Team

Rated 5 out of 5 stars

Very smooth transition

The transition from our e-on Next our previous supplier, to SmartestEnergy Business has been smooth and easy. Customer Services have been quick to answer

8 April 2026
Unprompted review
SmartestEnergy Business logo

Reply from SmartestEnergy Business

We appreciate you taking the time to write a positive review of SmartestEnergy Business and rating our service as excellent. Your feedback has been passed on. Many thanks for your custom.

Best Regards
The SmartestEnergy Business Team

Rated 5 out of 5 stars

Best customer service

The customer service is very efficient and responds quickly- A big shout out to Sandra who stayed patient with me whilst I struggled to explain login details to her and once she had it all she resolved my query in minutes!! You are a star Sandra!

8 April 2026
Unprompted review
SmartestEnergy Business logo

Reply from SmartestEnergy Business

We appreciate you taking the time to write a positive review of SmartestEnergy Business and rating our service as excellent. We're pleased that you received a professional service from our advisor Sandra. Your feedback has been passed on. Many thanks for your custom.

Best Regards
The SmartestEnergy Business Team

Rated 5 out of 5 stars

Wendy was very good in explaining to…

Wendy was very good in explaining to resolve my query.
She was very polite and calm in her explanations.

8 April 2026
Unprompted review
SmartestEnergy Business logo

Reply from SmartestEnergy Business

We appreciate you taking the time to write a positive review of SmartestEnergy Business and rating our service as excellent. We're pleased that you received a helpful service from our advisor Wendy. Your feedback has been passed on. Many thanks for your custom.

Best Regards
The SmartestEnergy Business Team

Rated 5 out of 5 stars

Harry credit control team

We have written a review in the past on the service received from a member of the Smartest Energy credit control team Harry….once again he has knocked it out the park, thank you for your help in the matter Harry

8 April 2026
Unprompted review
SmartestEnergy Business logo

Reply from SmartestEnergy Business

We appreciate you taking the time to write a positive review of SmartestEnergy Business and rating our service as excellent. We're pleased that you received a profesional service from our advisor Harry. Your feedback has been passed on. Many thanks for your custom.

Best Regards
The SmartestEnergy Business Team

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