HIES Reviews 

1,389
•
TrustScore 5 out of 5

4.8

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Review summary

Created with AI, based on recent reviews

Considering 471 reviews, reviewers overwhelmingly had a great experience with this company. Customers frequently praise the staff for their exceptional professionalism and technical knowledge, noting that installations are handled smoothly, cleanly, and efficiently from start to finish. Many people also appreciate the clear communication, helpful guidance, and ongoing reassurance provided throughout the entire process by the dedicated team. However, some customers also noted significant issues with dispute resolution and perceived a lack of proper consumer safeguards or support from the organization. A few other people also felt that certain projects suffered from frustrating delays, unexpected extra costs, or poor handling by the management during implementation.

What people talk about most

Service

Reviewers highlight positive aspects of service, noting that installations were carried out smoothly and... See more

Staff

Consumers find staff to be exceptionally helpful, professional, and knowledgeable throughout the entire... See more

User experience

Reviewers mention positive feedback about user experience, noting that the whole process was very smooth and... See more

Customer service

Customers consistently note positive experiences with customer service, highlighting professional, responsive... See more

Product

Users describe positive interactions with product, expressing great satisfaction with the performance and... See more

Reviews shaping this summary

Rated 5 out of 5 stars

Politeness of the guys whilst working for two days at our house (David, Lee & Davy) plus electrician Mike who also spend the second full day working here. Very professional job carried by a well exp... See more

Company replied

Rated 5 out of 5 stars

I had already had a some quotes from other solar companies, and I almost went with another company, a dear friend and colleague passed me details for this company, really pleased I did, Andrew and... See more

Company replied

Rated 5 out of 5 stars

Solar is a big investment with a slow return - Optimising is important and also having the assurance, just in case something goes wrong. HIES gives you that assurance and ensures compliance with stan... See more

Company replied

Rated 5 out of 5 stars

From start to finish Aira were great, especially the everyone that completed the install. Very professional, neat and tidy work. Everything arrived on the morningnof fitting, with the fitters arriving... See more

Company replied


Company details

Written by the company

HIES is committed to the highest standards in consumer protection for the home energy sector. Through our Chartered Trading Standards Institute (CTSI) approved Consumer Code and Alternative Dispute Resolution (ADR) service, we promote fairness, accountability, and protection for both homeowners and installers.


Contact info

4.8

Excellent

TrustScore 5 out of 5

1K reviews

5-star
4-star
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1-star

Asks customers to review

This company invites their customers to review, whether positive or negative

Replied to 100% of negative reviews

Typically replies within 1 week

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4.8

All reviews

(1,389)

460 reviews in the last 12 months

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Companies on Trustpilot aren't allowed to offer incentives or pay to hide reviews. Reviews are the opinions of individual users and not of Trustpilot. Read more

Rated 5 out of 5 stars

Easy process

Easy process, straight forward with nothing unclear.

29 June 2026
Unprompted review
HIES logo

Reply from HIES

Good morning, Neil. Thank you for taking the time to leave a review. We are pleased to hear that the process has been easy and straightforward. Kind regards, HIES.

Rated 5 out of 5 stars

Solar panels from Eon…

The solar panel installation was well coordinated (Eon next) and so far seems to be working well but rather lacking in documentation for a multi-thousand pound system. All workers friendly and knowledgeable. Can’t export yet due to delay on DNO certification. Four weeks and waiting.

22 May 2026
Unprompted review
HIES logo

Reply from HIES

Good morning, John. Thank you for taking the time to leave a review. We are pleased to hear that your installers were friendly and knowledgeable. Kind regards, HIES.

Rated 4 out of 5 stars

Good communication and explanation when…

Good communication and explanation when exploring our installer choice , had good reviews on line, good communication through the process. A big process removing existing heating system boiler rads etc with minimal effect on us. Pleased with our choice.

20 June 2026
Unprompted review
HIES logo

Reply from HIES

Good morning, Chris. We are delighted to hear that you are pleased with your installation. Thank you for your positive feedback. Kind regards, HIES.

Rated 5 out of 5 stars

Politeness of the guys whilst working…

Politeness of the guys whilst working for two days at our house (David, Lee & Davy) plus electrician Mike who also spend the second full day working here. Very professional job carried by a well experienced team, worked hard and cleared everything up upon finishing.
Many thanks.

22 May 2026
Unprompted review
HIES logo

Reply from HIES

Hi there, Sylvia. We are pleased to hear that your installers were very professional. Thank you for leaving a positive review. Kind regards, HIES.

Rated 5 out of 5 stars

Professional and responsive

Professional and responsive. Would definitely recommend.

18 May 2026
Unprompted review
HIES logo

Reply from HIES

Good morning, James. We are thrilled to hear that your installers were very informative and knowledgeable. Thank you for your positive feedback. Kind regards, HIES.

Rated 5 out of 5 stars

Excellent service very good fitters

Excellent service very good fitters,
Very quick and cleaned up after the job was complete

21 May 2026
Unprompted review
HIES logo

Reply from HIES

Good morning, Trevor. Thank you for leaving a review. We are delighted to hear that your installers were excellent. Kind regards, HIES.

Rated 5 out of 5 stars

Very professional company

Very professional company
Installation was done quickly with a minimum of fuss or disruption
System was well explained .Quick
response to any questions
I would recomend this company

19 May 2026
Unprompted review
HIES logo

Reply from HIES

Good morning. We are pleased to hear that your installation was completed quickly with no fuss or disruption. Thank you for leaving a positive review. Kind regards, HIES.

Rated 5 out of 5 stars

Good communication and information from…

Good communication and information from this company during our recent solar panel installation

19 June 2026
Unprompted review
HIES logo

Reply from HIES

Good morning, Kieron. Thank you for your positive feedback. We are thrilled to hear that you received good communication throughout your installation. Kind regards, HIES.

Rated 4 out of 5 stars

The process was very easy with good…

The process was very easy with good knowledge from salesman. The office staff was very helpful with a quick answer on the phone. Installation was straight forward with a happy crew.

18 May 2026
Unprompted review
HIES logo

Reply from HIES

Good morning, Phillip. Thank you for taking the time to leave a review. We are pleased to hear that your installation was straightforward and that the process was easy. Kind regards, HIES.

Rated 5 out of 5 stars

very helpful and appreciate being kept…

very helpful and appreciate being kept up-to-date

17 June 2026
Unprompted review
HIES logo

Reply from HIES

Good morning. We are thrilled to hear that you have found your installers very helpful. Thank you for taking the time to leave a positive review. Kind regards, HIES.

Rated 5 out of 5 stars

Excellent company to deal with,

Excellent company to deal with,
Any problems were sorted immediately and all the staff are very friendly and a credit to their company,
Many thanks OPTAMA

5 November 2025
Unprompted review
HIES logo

Reply from HIES

Good morning, John. Thank you for taking the time to leave a review. We are thrilled to hear that your installers were excellent. Kind regards, HIES.

Rated 5 out of 5 stars

Pretty sure price is competitive and…

Pretty sure price is competitive and the installation was straightforward. Experienced people

18 May 2026
Unprompted review
HIES logo

Reply from HIES

Good morning, James. We are pleased to hear that your installation was straightforward. Thank you for taking the time to leave a review. Kind regards, HIES.

Rated 5 out of 5 stars

Everyone was helpful

Everyone was helpful, knowledgeable and polite. The installation people were great. Installers were great.
All working well. Just changed our energy supplier because of the great service by Octopus. Recommended. Also price was highly competitive.

29 April 2026
Unprompted review
HIES logo

Reply from HIES

Good morning, thank you for taking the time to leave a positive review. We are pleased to hear that Octopus provided a great service and has been helpful. Kind regards, HIES.

Rated 5 out of 5 stars

They delivered the 'package' of work well.

They delivered the 'package' of work most efficiently and with as little disruption to the house as possible. All members of the team were pleasant and polite and they cleared up after themselves very well.
A good, beneficial experience.

11 May 2026
Unprompted review
HIES logo

Reply from HIES

Hi there, David. Thank you for taking the time to leave a positive review. We are delighted to hear that your installers were pleasant and polite. Kind regards, HIES.

Rated 5 out of 5 stars

Reassurance guaranteed

The service I have received from this company has been 2nd to none and I felt reassured throughout the process of having solar panels fitted by a company vetted by HIES

13 May 2026
Unprompted review
HIES logo

Reply from HIES

Good morning. We are pleased to hear that you received great service from your installers. Thank you for taking the time to leave a review. Kind regards, HIES.

Rated 5 out of 5 stars

This was a complete surprise and very…

This was a complete surprise and very welcomed bonus. Having insurance warranty takes a lot of lingering concerns or if the project long-term.

13 June 2026
Unprompted review
HIES logo

Reply from HIES

Hi there, thank you for taking the time to leave a 5-star review - we really appreciate it. Kind regards, HIES.

Rated 5 out of 5 stars

Behind the scenes security that you…

Behind the scenes security that you don't even think you need, until you do. Well done HIES

12 May 2026
Unprompted review
HIES logo

Reply from HIES

Good morning, Tracy. Thank you for taking the time to leave a 5-star review - we really appreciate it. Kind regards, HIES.

Rated 5 out of 5 stars

It's nice to have the reassurance that…

It's nice to have the reassurance that HIES have got your back if things go wrong

11 May 2026
Unprompted review
HIES logo

Reply from HIES

Good morning. We are pleased to hear that you feel reassured with HIES. Thank you for taking the time to leave a review. Kind regards, HIES.

Rated 5 out of 5 stars

Really great installation of a…

Really great installation of a remarkable system....the workmanship was impeccable and we are very very pleased with our investment.

19 May 2026
Unprompted review
HIES logo

Reply from HIES

Good morning. We are delighted to hear that your installers delivered impeccable workmanship. Thank you for taking the time to leave a review. Kind regards, HIES.

Rated 5 out of 5 stars

Happened automatically

Registered after Octopus Energy ASHP installation

9 June 2026
Unprompted review
HIES logo

Reply from HIES

Hi there, Philip. Thank you for taking the time to leave a 5-star review - we really appreciate it. Kind regards, HIES.

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