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. 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

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No recent history of asking for reviews

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Replied to 28% of negative reviews

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4.7

All reviews

(827)

88 reviews in the last 12 months

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Rated 5 out of 5 stars

Neat PV Panel Installation

Communication was good during the planning stage and, after some useful discussion, an installation plan was agreed for PV panels on 2 roof aspects and a battery. After a minor glitch by the delivery driver, work proceeded apace and the installation was completed on time. The scaffolders, roofers and electrician worked efficiently, courteously and professionally to deliver a neat installation.

October 2, 2025
Unprompted review
Sustain - Solar, Heat Pumps & HomePlans logo

Reply from Sustain - Solar, Heat Pumps & HomePlans

Thank you for your thoughtful review. We’re delighted to hear that you were pleased with the planning process and final installation. We’ll be sure to share your kind words with the scaffolders, roofers, and electrician who worked on your project. Thank you again for choosing Sustain for your solar and battery installation!

Rated 3 out of 5 stars

Post installation: difficulty obtaining SEG authorisation.

While communication was generally good during much of the process, there were gaps—particularly during the SEG accreditation phase:

1. We weren’t clear on what was required, or which authorities were involved
2. Updates on progress were sparse

This gave the impression that Sustain Homes considered it a low-priority administrative task and let it drift.
Reading the reviews I see we're not the only people that have had this problem.

September 19, 2025
Unprompted review
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Reply from Sustain - Solar, Heat Pumps & HomePlans

Thank you for taking the time to share your honest feedback. We’re glad to hear that communication was good for much of your project, but we’re very sorry that the SEG accreditation stage didn’t meet the same standard.

We appreciate you highlighting this. Your comments have been shared with our operations team so we can review and improve our communication process during this phase, it’s definitely not something we consider low priority.

Rated 5 out of 5 stars

Great job from start to finish

The whole process from start to completion was well communicated and managed. At each stage the men worked efficiently, pleasantly and tided up. A great job!

October 3, 2025
Unprompted review
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Reply from Sustain - Solar, Heat Pumps & HomePlans

Thanks for the great feedback! We appreciate it here at Sustain

Rated 4 out of 5 stars

Solar Panels installation by Sustain Homes highly recommended

I had Solar Panels installed through the Essex County Council 'Solar Together' project. Sustain Homes was the successful bidder and once I had agreed to go ahead, the process from beginning to start was fairly smooth and plain sailing. Aside from a few hiccups with delays with surveyor's visit and the placing of scaffolds, I have but praise for the Sustain Homes team which included a lot of people from designers, office staff, surveyor and installation team who all did a great job. Communication with various members of the team mainly by email was very good overall and each aspect of the job was handled by different people who all were courteous and professional. Communication with the Solar Together team and Essex County Council was also very good.
I have been monitoring the system since installation on the 5th August including any hint of roof leaks but so far so good. A job well done overall and very good value for money while promoting green energy. Thank you all

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

Inadequate survey resulted in poor design

We had solar panels installed over the summer by Sustain. We were new to solar energy and trusted in the process and expertise of Sustain. Unfortunately their surveyor failed to identify several key issues, failed to explain our options and failed to include anything from the site visit in his report. The system design was based on his inadequate survey and crucial elements were not suited to our property. The issues were identified only when the electricians and roofers arrived for installation. Sustain offices responded only with an apology for miscommunication and offered to make corrections at our expense.

August 4, 2025
Unprompted review
Rated 5 out of 5 stars

Air Source Heat Pump instal from County Council recommended contractor

We had an Air Source Heat Pump installation, so a major (and noisy) job which lasted 4 days plus a little snagging work at the end. Sustain were chosen by Essex County Council and we joined the scheme. George, Andre and Chris working as quietly as they could at our home, worked tidily, were polite and unobtrusive. Ryan saw to completion and commissioning. At every stage we were informed of progress and any issues found.

July 25, 2025
Unprompted review
Rated 2 out of 5 stars

Quite stressful and not a great experience

From start to finish, there have been problems and issues with our solar installation. Unfortunately for the labourers most of the problems have all arisen from the incorrect design by the surveyor of 2 rows of 8, which has caused a snowball effect for everything else down the line.

When the solar panels turned up the day before fitting, only 14 were delivered as there wasn't enough in stock, the delivery driver said they had placed another order to be delivered the next day, luckily they turned up before the fitters.

However, when the 2 lads turned up and got up on the roof, they told us they wouldn't be able to fit 16, only 8 !! We asked them to hold fire while we sorted the problem out over the phone as we wouldn't have wanted to go ahead with just 8. For a house our size, it wouldn't have been worth it. Luckily Jamie the Instalation manager was also working local, and he popped over to have a look and help, he then assessed it and said they would be able to fit 13, but we wanted to wait for a new quote with all the estimated KW generation and price etc.

We'd also got a loan for the higher amount 3 months ago when we paid the deposit, so we weren't happy about having to pay for unnecessary interest and early settlements for a lower amount.

We reluctantly agreed to the 13, and the lads did a good job on the hottest day of the year, hats off to them, superstars. But  after they left we checked the roof from across the road and noticed there was clearly room for the orginal 16 to actually have been fitted, but as the orginal layout was different the scaffolding wasn't put up long enough.

We had to wait over the weekend to speak to someone on Monday, as if possible we would still have preferred to have the original agreed 16. Thankfully we was told that the scaffolders would come back and extend the frame and the fitters could then come back and add on the other 3, in the mean time Rory who was turning up that day could carry on with the electrical work as planned. He was great with the fitting, very polite, helpful, and explained everything well, he done an amazing job. However, he had knock on effect issues of his own to deal with. As he'd been told, it was 8 panels, not 16, so he had brought wiring that wasn't thick enough for 16. He was also told it was 1 battery rather than the 2. He'd brought black conduit trunking, as he wasn't told we'd asked for white (as who wants black trunking going up a white house) Also During our survey we was told we couldn't have the batteries and inverter fitted in our garage without taking all the flooring up to run cables, Which we were now told we could have infact had, by running an external higher cable, but as we didn't know this, we hadn't cleared space or removed shelving attached to all the walls, so unfortunately it was too late for this option. We were also told to have the batteries on the other side of the house, so they wasnt in south facing sun all day, so he had to run all the cables through the loft and out the other side and then had trouble getting the cabelling sorted due to our sloped roof. In the end, this, along with other issues, he had to stop and reschedule to come back. The scaffolding pole put directly in front of the electric meter didn't help as we couldn't get the door open, which, luckily, we later managed to take the door off to give him access.

Scaffolders were re booked to come back the following week to extend, with Rory and Chris the roofer to come back the next day to finish off.

However, the scaffolders didn't turn up. I called the office about 4 pm with no answer. We were sent an email at 2.30pm, which we didn't receive until 4.30pm after waiting in all day, to say they would be there the next day instead. A phone call would have been better as not everyone checks emails continuously all day.

The Electrian and roofer both turned up before the scaffolders, so they got on with doing what they could until the scaffolders did their bit.
Chris, the roofer, found that there weren't enough fitting supplies left by the previous roofers who had done the first 13, so he had to go buy more supplies.

After another full day, we were finally up and running. I'd like to say a big thanks to them both for all their hard work despite all the issues which made their jobs harder, none of which were their fault.

We were told at our initial phone appointment on 19th March that fitting would be in around 8 weeks' However after our deposit was paid, the earliest fitting date we were offered was the 3rd July, 15 weeks.

Would I recommend Sustain to other people ? I'm not sure if i would, but from looking at other reviews on trustpilot, I think we were just unlucky.

I would recommend that surveyors need to take better measurements before doing their designs, and accurate information is given to potential new customers from the start to avoid these errors in the future.

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

Peter and Rio were good efficient…

Peter and Rio were good efficient workers, polite and helpful. Did a great job.

July 22, 2025
Unprompted review
Sustain - Solar, Heat Pumps & HomePlans logo

Reply from Sustain - Solar, Heat Pumps & HomePlans

Thank you for taking your time to review our electricians, I will be sure to pass on the feedback.

Rated 5 out of 5 stars

Sustain Homes solar installation - a first class experience.

The installation of our solar panels and batteries was both professional and efficient - indeed it was first class throughout the process. From the initial contact on to the survey and through to installation the process went like clockwork. Every member of the team from admin staff to installers was helpful, friendly and very good humoured. Queries were dealt with quickly and thoroughly. I would recommend Sustain Homes to anyone without hesitation.

June 13, 2025
Unprompted review
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Reply from Sustain - Solar, Heat Pumps & HomePlans

We love hearing our customers experiences, thanks for taking the time to review Sustain. We hope you enjoy your newly installed Solar system!

Rated 5 out of 5 stars

Professional Service

Easy to use from start to finish. Helpful advise given and contractors used were very professional. Thoroughly recommend.

July 14, 2025
Unprompted review
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Reply from Sustain - Solar, Heat Pumps & HomePlans

Thank you for your kind feedback! We’re so pleased to hear that you found the whole process easy and that our team and contractors delivered a professional service.

Rated 5 out of 5 stars

Great install

Quite a smooth journey. Installation teams were very good (electrical team Pete and Olly in particular). Office quick and responsive to any queries. The only thing that could be improved is communication.
We’re happy with the overall process and are saving money immediately

July 14, 2025
Unprompted review
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Reply from Sustain - Solar, Heat Pumps & HomePlans

Thank you for sharing your feedback. We’re delighted to hear that you found the installation process smooth and that Pete and the rest of the team provided great service. It’s fantastic to know you’re already seeing savings.
We also really appreciate your note about communication, we’re always looking for ways to improve and will take your comments on board.

Rated 5 out of 5 stars

Home battery

I’ve had a battery system added onto my existing solar and right from the start I got good solid advice from Ryan and the sales team and an excellent installation by Charlie. No hard sell just efficient service thank you Steve

July 9, 2025
Unprompted review
Sustain - Solar, Heat Pumps & HomePlans logo

Reply from Sustain - Solar, Heat Pumps & HomePlans

Thank you, Steve, for your wonderful feedback!
We hope you enjoy the benefits of your new battery system, and we truly appreciate you choosing Sustain!

Rated 5 out of 5 stars

Sustain - Solar, Heat Pumps & HomePlans

The company is a very caring and considerate company. From Dan who designed the solar panels and was very easy to talk to, to the office staff run by Sam. They were very happy to help with any queries we had on this project. The men that came to install these solar panels were considerate and a pleasure to be around at our home. As they are installing panels in many homes they do turn up earlier or later in the day but you do not need to worry as they always got the job done in the days allotted to us for this project.
The results are excellent and we are very happy with the results. Thank you Sustain.

June 17, 2025
Unprompted review
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Reply from Sustain - Solar, Heat Pumps & HomePlans

Thank you again for choosing Sustain and for sharing your experience, your feedback means a lot to us! 🌞

Rated 5 out of 5 stars

Competitive price and great service…

Competitive price and great service from the outset. Everyone from the scaffolders, roof fitters and electrical installer were prompt, friendly and efficient.

July 8, 2025
Unprompted review
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Reply from Sustain - Solar, Heat Pumps & HomePlans

We really appreciate your feedback and are glad we could deliver a smooth and efficient experience from start to finish.

Thanks again for choosing Sustain Homes!

Rated 5 out of 5 stars

What a refreshing change to find a…

What a refreshing change to find a Company that is Professional, reliable and wonderfully efficient !! From the start our experience with Sustain Homes staff beginning with Adam and then Ryan, Charlie and James, and throughout the whole job Paula , who was always available on the end of the phone to assist in every way . Our refit of a new heat pump , tank and pipe work computer etc for our five bedroom home with underfloor heating went smoothly , quietly and efficiently. The finished job was left neat and clean and we are extremely happy . We will continue to use Sustain homes for all our future servicing and any repairs necessary along the way .

June 9, 2025
Unprompted review
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Reply from Sustain - Solar, Heat Pumps & HomePlans

Thank you so much for your kind and thoughtful review! We’re absolutely delighted to hear that your experience with Sustain Homes was such a positive one.

A big thank you for mentioning Adam, Ryan, Charlie, James, and Paula — they’ll be so pleased to know their efforts made a real difference.

We’re thrilled you’re happy with the results and look forward to supporting you with any future servicing or maintenance needs.

Rated 5 out of 5 stars

Seamless Installation of Heat Pump, Solar and Batteries

Sustain Homes have been outstanding from start to finish. From the first contact through to planning and installation, every step of the process was handled with care and professionalism. The team installed our heat pump, solar panels, and battery system seamlessly, and everyone we dealt with was friendly, knowledgeable, and clearly took pride in their work. I couldn’t be happier with the service and highly recommend Sustain Homes to anyone considering renewable energy solutions.

June 27, 2025
Unprompted review
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Reply from Sustain - Solar, Heat Pumps & HomePlans

Thank you so much for your fantastic review! We’re absolutely thrilled to hear that your experience with Sustain Homes was so positive from start to finish. Thanks again for choosing Sustain Homes — we're always here if you need anything in the future!

Rated 5 out of 5 stars

12 x solar panel installation.

The electricians Max and Billy did an amazing job. They were onsite for nearly 12 hours and were always helpful, polite and informative plus hard working! Everything up and running by the end of the day. Heartily recommend. We had to wait a bit from our initial enquiry with Sustain, but once the ball was rolling it went very smoothly.

June 25, 2025
Unprompted review
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Reply from Sustain - Solar, Heat Pumps & HomePlans

Thank you so much for your fantastic review! We're delighted to hear Max and Billy made such a positive impression. Your recommendation means a lot to us!

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