Sustain - Solar, Heat Pumps & HomePlans Reviews 

836
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 88 reviews, reviewers overwhelmingly had a great experience with this company. Consumers frequently point out that the team is extremely polite, highly efficient, and consistently helpful during every single stage of the project. Reviewers really love the smooth installations, noting that workers arrive on time, work hard, and leave the property spotless. However, some people mentioned issues with communication gaps, delayed survey visits, and missed call-back promises from the office staff. A few customers also noted unexpected equipment placement, visible cabling choices, or difficulties getting timely responses for aftercare support queries. Others experienced frustrating delays or a lack of proactive communication during specific project phases.

What people talk about most

Service

Reviewers highlight positive aspects of service, noting that processes are smooth and efficient from start to... See more

Staff

Users describe positive interactions with staff, highlighting that team members are consistently polite,... See more

Product

Reviewers share mixed feedback about product quality and installation experiences. Many consumers praise the... See more

Customer service

Customers consistently note positive experiences with customer service, praising staff for being... See more

Response time

Clients share ambiguous opinions on response time, with experiences varying greatly. Some consumers report... 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

Excellent service from start to finish. From the very first call regarding the designing and planning, taking in to account everything I said. Keeping us inform all the way through the process. Instal... 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

836 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

(836)

97 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 Solar Sustain Team

Many thanks to William, Charlie, Luka and Tommy and the Sustain team for their excellent service. The installation team were outstanding; worked incredibly hard, installing the solar system in two days; at the end of which the system was fully operational, batteries were fully charged, and we were self sufficient from the PV panels. Thank you.

May 13, 2025
Unprompted review
Rated 5 out of 5 stars

Have nothing but good things to say…

Have nothing but good things to say about Sustain, and Adam Morse in particular. He was great at talking us through the process of getting a heat pump installed and was professional and patient with us. Happy to recommend Sustain to anyone looking to make their home greener

May 1, 2025
Unprompted review
Rated 5 out of 5 stars

Connecting up solar panels

Pete and Rio were very professional, organised and focused. They explained everything they were doing - listened to my concerns and came up with a good solution - left everything very neat and tidy and even took away the packaging. Would definitely recommend them.

May 13, 2025
Unprompted review
Rated 5 out of 5 stars

Vaillant Heatpump

Michael and Jack was a pleasure to deal with and explained everything very well.
They were extremely clean and tidy and respectful to my house.
The installation looks great and has alot of attention to detail.
I would highly recommend Sustain to anyone looking for a heatpump and solar panels.

March 31, 2025
Unprompted review
Rated 5 out of 5 stars

Great teamwork

The preparatory work was handled very well, and the process and documentation was clear and transparent. There was flexibility to adjust the work to meet our requirements. On the appointed day, The team arrived early, worked hard and completed the installation on the day promised. The few problems that they ran into were quickly resolved. They kept the work as tidy as possible, especially given that they were working all over the house. The enthusiastic team supported each-other well to get the work completed on time. Overall, a good experience and we would highly recommend Sustain.

May 9, 2025
Unprompted review
Rated 5 out of 5 stars

Overall very good

Excellent appraisal and advice, with follow through Q&A, schedule communication, etc. Efficient, clean installation completed to schedule. Bricks damaged by drilling right through wall during installation of batteries and electrical equipment. Post-install service team have apologised and promised to fix the problem with brick-coloured repair filler grout.

May 9, 2025
Unprompted review
Rated 5 out of 5 stars

Great job

Turned up when they said they would. We’re efficient in their work. All work completed with care and kept me informed as to timescales etc throughout. Sorry! I can’t remember the name of the team, Rio and someone?!

May 7, 2025
Unprompted review
Rated 5 out of 5 stars

Good communication

Good communication. Friendly and helpful installers. Clear schedule. Kept to time. Pete and Rio did a great job on explaining system and getting it set up. All left tidy.

May 1, 2025
Unprompted review
Rated 5 out of 5 stars

Solar panel installation

Rio and Pete arrived early, were pleasant and efficient and took the time to explain the system fully. Their additional care for key points to be aware of and suggested ideas was insightful and required. In addition, they were clean and tidy on completion. A job well done, thank you.

April 30, 2025
Unprompted review
Rated 5 out of 5 stars

Sustain arranged our heat pump spec and…

Sustain arranged our heat pump spec and installation. Adam and Ryan have been very reactive to communications and professional in all dealings. James and Dave the Installation team were a pleasure to work with and did an outstanding job on the installation of our system. Thanks!

April 22, 2025
Unprompted review
Rated 5 out of 5 stars

The Sustain experience has been fantastic.

The Sustain experience has been exemplary. From the initial contact through until completion has been very easy made all the more easier by great communication with all members of the team. I would recommend them to anyone considering a heat pump. We really wish we had chosen them for our solar install too which unfortunately went to EDF/Contact Solar. They sub-contracted the install to a bunch of cowboys who's work and attitude was shocking. Never again EDF.

April 22, 2025
Unprompted review
Rated 5 out of 5 stars

Very pleased

Very pleased, the installation went pretty much to schedule and everyone involved was professional, helpful and focussed on doing the best job. Excellent.

April 22, 2025
Unprompted review
Rated 5 out of 5 stars

Thoroughly recommend Sustain

Maddie the coordinator was always available to make sure everything ran smoothly and to time. All the teams throughout were friendly, efficient and tidy and my solar panels were up and running two days after the scaffolding was up and all the kit delivered. I would thoroughly recommend Sustain to anyone considering solar.

April 17, 2025
Unprompted review
Rated 5 out of 5 stars

Great install

Will and Dom were great, quick, efficient, really friendly and respectful and walked me through the set up and the app in an easy to understand way.

April 9, 2025
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