Sustain - Solar, Heat Pumps & HomePlans Reviews 

827
TrustScore 4.5 out of 5

4.7

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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. #19 of 29 best companies in Solar Energy Contractor
  2. #57 of 74 best companies in Central Heating Service
  3. #21 of 32 best companies in 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

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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

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4.7

All reviews

(827)

88 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

Professional and friendly

The points of contact with Sustain have been very professional and cordial. The design process with a little drawn out to find the optimal arrangement but the survey and installation teams were excellent. They were proactive when the installation team were affected by last minute sickness and when the removal of the scaffolding by their sub-contractor was delayed, to find a suitable time.

7 February 2025
Rated 5 out of 5 stars

Max and Billy :5☆ Sparkys

Max and Billy arrived promptly and explained everything that they were going to do. From then on they worked diligently and consciencely until The PV system was successfully installed some 5/6 hours later. This work included digging a 5m trench in the driveway. Throughout they were both very polite, affable and ensured their boots were removed when coming in the house! They took me through the Foxcloud App, tidied up thoroughly and left a first class 5☆ days work behind them.

6 February 2025
Rated 5 out of 5 stars

Solar panel installation

Sam and Charlie have installed my solar panels and new fuse box. They were very friendly and explained how the new system works. Very pleased with the work they have done.

5 February 2025
Unprompted review
Rated 5 out of 5 stars

Solar panel installation.

Sam and Jude turned up punctually and undertook the task of wiring up the solar panels. The work was done neatly and efficiently and they happily answered the several questions that I asked.
More than happy to recommend them.

5 February 2025
Unprompted review
Rated 5 out of 5 stars

Absolutely faultless

Absolutely faultless. The communication, organisation and quality of the work has been beyond my expectations. The contractors who put up the scaffolding to the fitters and electricians arrived on time, were courteous, quick and did a great job. Above all this, the customer service from the centre exceeds anything I have experienced recently from any other industry, by a country mile. I would have absolutely no hesitation in recommending Sustain and will be telling all my friends.

16 January 2025
Unprompted review
Rated 4 out of 5 stars

Well planned and executed installation

Survey was very thorough. Installation went fine despite a few minor changes to timing (one engineer was ill). Fortunately I could be flexible in accommodating the changes.
Care and attention paid to reinstatement of paving slabs that needed to be lifted, and wiring done neatly.

31 January 2025
Rated 5 out of 5 stars

Delighted by Sustain Solar!

Sustain Solar was the winning bid for the contract from the Hampshire Solar Together initiative. All communication to me after the end of the bid was clear, timely and all appointments (both physical and telephone calls) were kept. From the site survey, through all the steps such as dealing with the network operator, to getting scaffolding teams on site and delivering the panels etc - everything was professionally communicated, and worked like clockwork. It took a couple of hours to get the panels on to the roof, and 3/4 of a day to do the electrics. The deposit was help in a secure deposit scheme, and other professional schemes have underwritten product guarantees. Everything is working well and it has been easy to plug into a good scheme from my energy supplier (Octopus). Overall I feel I've had good value for money and it is difficult to fault anything relating to the installation.

24 January 2025
Rated 5 out of 5 stars

Install of battery and electrics for…

Install of battery and electrics for solar panels. Sam and Charlie very helpful and knowledgeable.

28 January 2025
Unprompted review
Sustain - Solar, Heat Pumps & HomePlans logo

Reply from Sustain - Solar, Heat Pumps & HomePlans

Thank you for your kind review! We're glad to hear that Sam and Charlie were helpful and knowledgeable during your installation.

Rated 5 out of 5 stars

Sustain - high quality installer and great customer skills

Last autumn I visited a couple of Sustain jobs - an air source heat pump and solar pv. Very good installs. Earlier this month I also attended a webinar "Understanding Domestic Electrical Systems". It just so happened that Colum Boland, the Director of Operations at Sustain, was a guest speaker. Colum sharing his free time and expertise as a qualified electrician of many a year. I found Colum’s advice very helpful – and importantly he spoke to me as a consumer, so I could understand what he was saying. From my experience Sustain comes across as very knowledgeable about heat pumps and solar pv. You get the feeling when you visit one of their jobs that Sustain actually enjoy doing high quality installs and creating a good customer relationship on the phone and whilst doing the work itself. The standard I set myself when choosing anyone to do work in my home is would I be happy with them working at my elderly mum's? The answer with Sustain is yes.

23 January 2025
Unprompted review
Sustain - Solar, Heat Pumps & HomePlans logo

Reply from Sustain - Solar, Heat Pumps & HomePlans

Thank you so much for your detailed and thoughtful review! We're thrilled to hear about your positive experiences with our installs and the webinar with Colum. It’s great to know that our team's dedication to quality and customer relationships stood out to you. We truly appreciate your trust in us 😊

Rated 5 out of 5 stars

Heat Pump Install

After our boiler broke in December it was a chilly wait for the install. Fortunately Adam and Ryan were able to accelerate the process and get the survey done quickly ready for an install in early June.

The consultation process was clear and report well structured to inform our decision.

During install the team, Bill, Ryan, James, Chris, Charlie, Kevin, and Guy worked incredibly hard to get the install done. They displayed professionalism throughout, answering my questions and being clear with how best we could manage my working from home, leaving the house tidy every day, and advising where my input was needed.

All in all a great experience and would thoroughly recommend. Thank you!

20 January 2025
Unprompted review
Sustain - Solar, Heat Pumps & HomePlans logo

Reply from Sustain - Solar, Heat Pumps & HomePlans

Thank you so much for your thoughtful and detailed review! We're glad the team’s professionalism and attention to detail made a difference throughout the installation. We really appreciate your recommendation and are happy to have been a part of your experience. If you need anything in the future, don’t hesitate to reach out!

Rated 4 out of 5 stars

Friendly

Friendly, helpful and competent professionals doing installation. Good communication with company.

16 January 2025
Unprompted review

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