Zest Energy Ltd Reviews 

284
•
TrustScore 4 out of 5

4.1

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Review summary

Created with AI, based on recent reviews

Evaluating 139 reviews, reviewers had a great experience with this company. People frequently praise the staff and sales consultants for being exceptionally polite, friendly, knowledgeable, and extremely helpful when guiding new buyers through the entire journey. Consumers consistently note that the overall installation service runs very smoothly, with professional technicians working efficiently, carefully managing difficult conditions, and always keeping workspaces clean. However, some people mentioned occasional issues with communication, noticeable delays regarding follow-up services, and a lack of prompt coordination for equipment collection. A few reviewers also experienced incomplete setups, missing key components, or difficulties reaching customer support after the main installation was successfully finished.

What people talk about most

Staff

Clients share satisfaction with the staff, frequently noting that representatives and installers are... See more

Service

Customers consistently note positive experiences with service, highlighting efficient installations, polite... See more

Product

People report ambiguous experiences with product, as some customers are extremely satisfied with their solar... See more

User experience

Consumers find user experience to be positive, highlighting that everything goes smoothly and... See more

Reviews shaping this summary

Rated 4 out of 5 stars

Unfortunately the engineer’s van had a breakdown and he arrived 2 hours late. However once he arrived he was very efficient. The one thing which was annoying is that no mention had been made that the... See more

Rated 4 out of 5 stars

The salesperson was pretty clear on most points as far as I recall. Chris and his colleague worked well in difficult weather conditions and worked late in the dark to finish. One negative.The Salesper... See more

Rated 4 out of 5 stars

The representative who came first of all was pleasant and explained everything.The engineer who installed the battery worked extremely hard in atrocious weather and again was very pleasant. I do have... See more

Rated 4 out of 5 stars

from point of sale to install was perfect but! after reporting a faulty panel was told part was in but the lad that installed battery did not know so big breakdown in communications 02/06/2026


Company details

  1. Solar Energy Company

Written by the company

A Scottish based Solar PV installer with extensive experience in the industry offering you the latest in home efficiency devices and renewable technology. Our bespoke services allow us to design the perfect energy and heating solution for your home. The ZestEnergy team provide you with a tailored experience, depending on your needs, budget and ambition.


Contact info

4.1

Great

TrustScore 4 out of 5

284 reviews

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4.1

All reviews

(284)

137 reviews in the last 12 months

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Rated 3 out of 5 stars

Not too bad in the end!

the new kit was put in a position so that we cant open the freezer properly, stuff was taken off the walls without asking us and a lot of rubbish was left behind. We were told that someone would come fix things this week but so far all we have had is one contact saying they were trying to find someone. Also we were promised that someone would come to help us change supplier so far that hasn't happened either. However they turned up and made the changes needed pretty quickly so we feel a bit better about them now.

April 1, 2026
Rated 3 out of 5 stars

Sold me what they intended to sell me…

Sold me what they intended to sell me after calling in for a health check. The upgrade is great and a vast improvement on the 5kw battery that never worked despite repeated request to effect a fix. Once contract was signed and they had my money, I never heard from them only the contractors doing the work and they were great.

March 16, 2026
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Reply from Zest Energy Ltd

Thank you for your review, Tim.

We do need to clarify one point in your comments, as it’s not accurate to say that you “never heard from us” after signing the contract. We have remained in contact throughout the process and have been available to you when needed.

We’re pleased to hear that the upgrade has delivered a significant improvement, and we appreciate your positive feedback about the installation contractors.

We take pride in delivering a smooth and well-supported experience from start to finish, so we’re sorry if this wasn’t fully reflected in how things felt from your perspective.

Rated 5 out of 5 stars

My experience over several years of…

My experience over several years of working with Zest, has always been excellent.
In this recent contract, their performance was again executed promptly and efficiently in both the installation and follow-up procedures. Zest Energy are a good, reliable company to work with.

March 16, 2026
Rated 4 out of 5 stars

The Purchase and installation was good…

The Purchase and installation was good so far still require another part to be fitted which had to be ordered up, Zest have promised to replace tiles that are broken due to the brackets for solar panels ( note our tiles are quite fragile) , have now supplied a MCA cert so we can now get money for any power that goes into the grid, the 4 Stars are due to broken tiles

March 9, 2026
Rated 3 out of 5 stars

Installer was very good

Installer was very good, but when it is linked up to computer there is no information as to what it all means. For older people I think it would be an idea to have a manual as to what all the readings mean.

February 17, 2026
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Reply from Zest Energy Ltd

Thank you for your review, Rosy, and for your kind comments about the installation — we’re pleased to hear the installer did a good job.

We appreciate your feedback regarding the system information and how it’s presented.

You’re absolutely right that the apps and monitoring platforms can sometimes assume a level of familiarity, and clearer guidance can make a big difference — particularly for those less comfortable with technology.

We do provide guidance and are always happy to talk customers through how to interpret their system data, but we take your point on board about making this more accessible and user-friendly.

If you would like, we’d be very happy to provide a simple, easy-to-follow explanation of your system and what the readings mean — just get in touch and we’ll walk you through it.

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