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
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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

DomElec are a company that's put's the…

DomElec are a company that's put's the customer first being polite and friendly from their office staff and also the installation team, great job thanks.

17 March 2026
Unprompted review
HIES logo

Reply from HIES

Hi there, thank you for taking the time to leave a review. We are thrilled to hear that Domelec Electrical & Solar Limited was polite and friendly. Kind regards, HIES.

Rated 5 out of 5 stars

Installation performed very quickly

Installation performed very quickly, to the highest standard, by highly qualified technicians. We highly recommend Titan Energy Solution.

16 March 2026
Unprompted review
HIES logo

Reply from HIES

Good afternoon. We are delighted to hear that your installation was to the highest standard. Thank you for leaving a review. Kind regards, HIES.

Rated 5 out of 5 stars

Great communication

Great communication, professional and genuinely helpful

20 March 2026
Unprompted review
HIES logo

Reply from HIES

Hi there, Zoe. 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

Solar panel and EV charger

Mark thoroughly explained the whole process which made it easier to make the decision… I took my time.

Installation was as promised and there were no glitches.

All staff very professional.

12 February 2026
Unprompted review
HIES logo

Reply from HIES

Good morning, Isobel. Thank you for taking the time to leave a positive review. We are pleased to hear that your installers were professional throughout your installation. Kind regards, HIES.

Rated 5 out of 5 stars

final future proof for heating

I was particularly impressed by how smoothly the whole process went and ultimately how quickly the team took out my old system and got the new one running. I was never for one day without hot water. And it was very thoughtful indeed to provide me with heaters for the few days of no heat. The professionalism of the team was incredibly tidy and at the end of each day my home was made tidy and ready for the next day. They kept me informed throughout the process so I always knew what the next stage was. It made the transition much easier from day to day. Where possible they found solutions to hiding pipe work for which I am very grateful.
It’s a relief to have a reliable heating and water system without the regular breakdown of my old boiler. I can certainly recommend Global to anyone thinking of a new heat pump system. The process took 4 days to complete and 1 day to commission it and it was a pleasure to have them in my home.

16 February 2026
Unprompted review
HIES logo

Reply from HIES

Hi there, Mo. Thank you for leaving a review. We are delighted to hear about your positive experience with your installers and how impressed you are with the process. Kind regards, HIES.

Rated 5 out of 5 stars

Highly recommended ,very efficient .

26 March 2026
Unprompted review
HIES logo

Reply from HIES

Hi there. We are pleased to hear that your installers were very efficient and that you would highly recommend them. Thank you for leaving a review. Kind regards, HIES.

Rated 5 out of 5 stars

Great team

Great team, very happy with their install.
John was very good, explain well, quote was accurate from the start. Discussed several options together.
Result is outstanding

9 March 2026
Unprompted review
HIES logo

Reply from HIES

Good morning, Cecile. Thank you for taking the time to leave a positive review. We are pleased to hear that you are happy with your installation. Kind regards, HIES.

Rated 5 out of 5 stars

Reassuring to have HIES vetting…

Reassuring to have HIES vetting contractors before investing large sums of money. I’ve had no issues with my installer but it’s good to know I have support if needed

9 March 2026
Unprompted review
HIES logo

Reply from HIES

Good morning, Alan. We are delighted to hear that you feel reassured. Thank you for leaving a positive review. Kind regards, HIES.

Rated 4 out of 5 stars

All staff were very polite and went…

All staff were very polite and went above our expectations in ensuring that there was very little damage to existing flooring. They made sure that their equipment was stored tidily throughout the fitting and ensured that we were happy with their installation and positioning of radiators, etc.

9 March 2026
Unprompted review
HIES logo

Reply from HIES

Good morning, Rupert. Thank you for leaving a review. We are thrilled to hear that your installers were very polite during the installation. Kind regards, HIES.

Rated 5 out of 5 stars

Fully satisfied

I was fully satisfied from start to finish. The salesperson was very informative and the installation went very smoothly. I would definitely recommend this Company.

12 March 2026
Unprompted review
HIES logo

Reply from HIES

Good morning, thank you for leaving a positive review. We are pleased to hear that you are fully satisfied with your installation. Kind regards, HIES.

Rated 5 out of 5 stars

Every thing was explained as to what…

Every thing was explained as to what was happening and the tradesmen were absolutely top notch

4 March 2026
Unprompted review
HIES logo

Reply from HIES

Good morning. We are pleased to hear that your installers were top-notch. Thank you for taking the time to leave a review. Kind regards, HIES.

Rated 5 out of 5 stars

Solar panels and a Tesla 3 battery

I had solar panels and a Tesla 3 storage battery lfitted by Octopus Energy and the whole purchase and installation went so smoothly and easy. The installation team were excellent keeping us up to date with the installation progress. The installation took two days and the team were very tidy.

10 March 2026
Unprompted review
HIES logo

Reply from HIES

Hi there, Philip. Thank you for leaving a review. We are delighted to hear that your installation with Octopus energy went smoothly. Kind regards, HIES.

Rated 5 out of 5 stars

First class job!!!

Every stage of the project that was expected to be done was exactly on time. And went like clockwork. Materials that was used are of a high quality. Workers just new what they were doing and made such a great job.
Could not fault the anything, and we are delighted with the results.
Well done!

10 March 2026
Unprompted review
HIES logo

Reply from HIES

Good morning, Linda. We are pleased to hear that you are delighted with the installation. Thank you for leaving a positive review. Kind regards, HIES.

Rated 5 out of 5 stars

Excellent service

Excellent service, kept me up to date with the solar installation and they vetted my installer.i didnt realise but they protect the deposit along with insuring the installer's guarantee is valid

6 March 2026
Unprompted review
HIES logo

Reply from HIES

Hi there, David. We are pleased to hear that you have received an excellent service. Thank you for taking the time to leave a review. Kind regards, HIES.

Rated 5 out of 5 stars

It's really good to know that our solar…

It's really good to know that our solar system has protection and that HIES is on hand should any unforeseen issues or problems arise. I would urge ensuring that companies are registered with HIES before committing to installing solar and or battery.

6 March 2026
Unprompted review
HIES logo

Reply from HIES

Hi there, Stuart. 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

Very quick service

Very quick service - friendly staff - and very neat work

4 March 2026
Unprompted review
HIES logo

Reply from HIES

Hi there, we are delighted to hear that your installers were friendly. Thank you for leaving a positive review. Kind regards, HIES.

Rated 5 out of 5 stars

The experience from the sale person to…

The experience from the sale person to the installation team and follow up after installation was a great experience, thank you

5 March 2026
Unprompted review
HIES logo

Reply from HIES

Good morning, we are pleased to hear that you had a great experience from start to finish. Thank you for leaving a review. Kind regards, HIES.

Rated 5 out of 5 stars

Above and beyond, friendly and professional

From consultant to installation the team were amazing, friendly and professional, easy to talk to, easy to ask questions about the heating system, nothing was too much trouble. Cleaned up afterwards, I would and have already recommended them. Amazing team. And a warm cleaner home

22 September 2025
Unprompted review
HIES logo

Reply from HIES

Hi there, we are delighted to hear that your installers were friendly and professional. Thank you for taking the time to leave a 5-star review. Kind regards, HIES.

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