Sustain - Solar, Heat Pumps & HomePlans Reviews 

827
TrustScore 4.5 out of 5

4.7

While we don't verify specific claims because reviewers' opinions are their own, we may label reviews as "Verified" when we can confirm a business interaction took place. Read more

To protect platform integrity, every review on our platform—verified or not—is screened by our 24/7 automated software. This technology is designed to identify and remove content that breaches our guidelines, including reviews that are not based on a genuine experience. We recognise we may not catch everything, and you can flag anything you think we may have missed. Read more

Review summary

Created with AI, based on recent reviews

Considering 85 reviews, reviewers overwhelmingly had a great experience with this company. Customers frequently praise the professional staff, polite engineers, and extremely smooth installation process executed from start to finish without unnecessary fuss. People truly appreciate the helpful customer service team and the clear, consistent communication provided throughout every single stage of the entire project. However, some customers also noted communication gaps and delayed responses regarding specific phases like administrative accreditation. A few reviewers experienced occasional issues with survey delays, minor mess left behind, and unhelpful aftercare support when trying to resolve post-installation problems or get timely callbacks from busy office personnel.

What people talk about most

Service

Reviewers mention positive feedback about service, highlighting efficient installations and professional... See more

Staff

Clients share positive opinions on staff, frequently praising the professional and helpful attitude of the... See more

Product

Consumers find product quality to be mostly satisfactory, praising the finished installation and good British... See more

Customer service

Customers had positive experiences with customer_service, noting that staff are professionally friendly,... See more

Response time

Users describe ambiguous interactions with response_time, reporting a wide range of differing experiences.... See more

Reviews shaping this summary

Rated 5 out of 5 stars

From start to finish Sustain's service was excellent. Installers Max & Jude were brilliant. Explained everything and cleared up every scrap of rubbish. Darren who fitted the solar panels was efficient... See more

Rated 5 out of 5 stars

I was kept informed about progress at all stages. We jointly negotiated a start date, which was NOT then altered. I had the same contact throughout (Ashley) which has continued post installation.... See more

Rated 5 out of 5 stars

impressed by the scaffolding installation an the guys who installed the panels on the roof despite the pouring rain.They even removed an unwanted tv Arial. Surprised by the amount of electrical insta... See more

Rated 5 out of 5 stars

All went exactly as stated and described by Sustain in the design pack and quotation. The installers arrived on time on the day expected and got straight on with work. Friendly and efficient inst... See more

Company replied


Company details

  1. Solar Energy Contractor
  2. Heating Contractor
  3. Repair Service

About Sustain - Solar, Heat Pumps & HomePlans

Written by the company

Making tomorrow a better place
Our mission is to help make our customers’ homes smarter, more efficient and cost less to run while helping the world get a cleaner energy system.

Our company
We are a multi award-winning company specialising in designing and installing cutting-edge solar PV and battery systems, air source heat pumps, high-efficiency gas boilers and renewable heating solutions, supported by a range of service plans.

B Corp
We are B Corp accredited, reaffirming our status as a responsible, purpose-driven company, making a meaningful difference in the world

With sustainability at our core, our products and services are ethically sourced, contributing to the growth of local economies and supporting the well-being of our dedicated team and valued customers.

As a climate committed organisation, we actively contribute to environmental conservation by planting trees and investing in carbon offset funds that advance the world's most effective climate crisis solutions.

Contact info

4.7

Excellent

TrustScore 4.5 out of 5

827 reviews

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

No recent history of asking for reviews

This company hasn't invited customers recently, so reviews may not be representative

Replied to 28% of negative reviews

Typically replies within 24 hours

How this company uses Trustpilot

See how their reviews and ratings are sourced, scored, and moderated.

4.7

All reviews

(827)

88 reviews in the last 12 months

Write a review
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

Excellent service from start to finish

Excellent service from start to finish. Colum was professional, knowledgeable, and kept us informed throughout the whole process. The installation was completed to a very high standard, everything was left clean and tidy, and we’re delighted with the end result. I wouldn’t hesitate to recommend Colum and the team. Five-star service!

March 6, 2026
Unprompted review
Rated 1 out of 5 stars

Getting a massive runaround

My installation has failed. I reported this two weeks ago. Many promises to call back, all did not materialise. They seem unwilling to visit and honour the warranty.

July 6, 2026
Unprompted review
Rated 5 out of 5 stars

Very good communication of what was…

Very good communication of what was happening and when. Installers, scaffold and electricians all turned up when they said they would. Very easy to contact and talk to someone when needed. Can’t fault them, would recommend.

July 3, 2026
Rated 5 out of 5 stars

Smooth installation of solar panels

We were kept updated by Sustain and individual staff members throughout the installation process. Any queries were dealt with quickly and thoughtfully giving consumer confidence.

June 30, 2026
Unprompted review
Rated 4 out of 5 stars

Addition of solar panels to my existing Tesla battery system

Sustain installed two batteries in my property last year and I was very pleased with the service. This year I decided to add solar panels to the system and contacted them for a quote which I accepted.
Unfortunately it took over a month to arrange the survey and some follow up queries that resulted also took quite a few weeks to conclude.
But the installation coordinators were very helpful and efficient at progressing. The guys that put up the scaffolding arrived within their allocated time and did well putting it up in excessive heat. Similarly the solar panel installers arrived two days later on time and did a great job installing them to my existing system within about 5 hours, again in extremely hot conditions. Very neat and tidy.
Very pleased with the installation and the addition of the panels to my system which are working as expected.

June 26, 2026
Unprompted review
Rated 4 out of 5 stars

Solar battery installation

After what was initially a problematic solar battery installation, which resulted in numerous phone calls with Sustain Homes, they eventually arranged for a different engineer to attend. The issues were promptly rectified to our satisfaction, and we were happy with the final outcome.

November 12, 2025
Unprompted review
Rated 5 out of 5 stars

impressed by the scaffolding…

impressed by the scaffolding installation an the guys who installed the panels on the roof despite the pouring rain.They even removed an unwanted tv Arial.
Surprised by the amount of electrical installation that was required.It was to late to discuss alternate ways of installing the equipment.Time will tell if this proves to be a big negative.

June 8, 2026
Rated 5 out of 5 stars

We are very pleased with our vailant…

We are very pleased with our vailant heat pump installed by Jacob,Chris and Tyler.They were very patient and looked after our home with care. the hot water is fantastic and the new radiators look really nice.From survey to install and getting all the warranty paperwork Sustain has done brilliantly.Gas meter being removed by Octopus this week.Goodbye standing charge and dirty gas.

June 8, 2026
Unprompted review
Rated 5 out of 5 stars

Superb

Superb, from the offer that gave us on cost right through to (and especially) the guys who installed the panels.

The service has been great and the communication has as well.

We are actually hoping to use them more to install additional panels!

June 1, 2026
Unprompted review
Rated 5 out of 5 stars

Electric Charge Installation

Sustain were easy to deal with arrived when they said they would. Engineer discussed the best place for the charger to be located. Cleaned up after installation and explained how the unit worked. We were very impressed with the whole process. Highly recommended

May 16, 2026
Unprompted review
Rated 5 out of 5 stars

Solar panel and battery installation

The installation of our solar panels system was mostly excellent. Sadly the surveyor had suggested putting the battery in an area with insufficient clearance, but the electricians sorted that out . The other issue we had was the scaffolding was left in situ much longer than we had been told it would be. However, Maddie Draper was excellent and sorted this out efficiently, even communicating with us when she was away on annual leave . We really appreciated Maddie’s assistance. The solar panel system and app seems to be working well .

March 30, 2026
Unprompted review
Rated 5 out of 5 stars

Excellent service

We needed a replacement solar panel for one that had been recently damaged. Response from the company was excellent with the work being carried out very efficiently and in a professional manner. The fitters were very courteous and efficient. We were extremely happy with the customer service and would recommend the company.

May 28, 2026
Unprompted review

The Trustpilot Experience

Anyone can write a Trustpilot review. People who write reviews have ownership to edit or delete them at any time, and they’ll be displayed as long as an account is active.

We use dedicated people and clever technology to safeguard our platform. Find out how we combat fake reviews.

Learn about Trustpilot’s review process.

Here are 8 tips for writing great reviews.

Verification can help ensure real people are writing the reviews you read on Trustpilot.

Offering incentives for reviews or asking for them selectively can bias the TrustScore, which goes against our guidelines.

Take a closer look