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
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Company details
- #19 of 29 best companies in Solar Energy Contractor
- #57 of 74 best companies in Central Heating Service
- #21 of 31 best companies in Repair Service
About Sustain - Solar, Heat Pumps & HomePlans
Written by the company
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
Unit 16 Paramount Industrial Estate, WD24 7XA, Watford, United Kingdom
- 0203 746 6040
- support@sustainhomes.co.uk
- sustainhomes.co.uk
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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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.
Great install
Pete and Rio worked hard and left no mess. The system was explained and is up and running. All good!
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!
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.
Great installation process by Sustain
Great Solar electric installation process by Pete and Rio.
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.
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.
Pete and Rio did a great job
Pete and Rio did a great job, great finish, very diligent and walked us through the whole process
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.
Will and Dom - v happy to have them work here again
Will and Dom were very neat workers, explained what they were doing and tidied up afterwards. Also gave patient and thorough explanation of the technology and App. Happy to have them work here again. G
Solar and battery installation
Reo and Pete did a fantastic job and clearly explained everything. Would highly recommend.
Sustain team were efficient from start to finish.
From making the decision to sign up for an Air Source Heat Pump to be installed, Sustain proved we had made the right choice in choosing them. The team came round to assess our house and explained how the system worked, answered any questions we had, then gave us a quote. We made the decision to go ahead and from the start date, when the installation team arrived, the whole process was very efficient. They all worked tirelessly leaving everything clean and tidy each night and were always very polite. Everything was explained in detail and nothing was too much trouble for them. The after sales follow up from Paula was also much appreciated and any questions we had were answered and sorted out straight away. The whole experience from start to finish was totally stress free and we would highly recommend Sustain as they certainly deserve their high ratings.
Sustain did a great job with our solar panels
Sustain sorted everything for our solar panels. All their contractors did an excellent job and we're almost fully self-sufficient in terms of our energy use now!
Quick and efficient installation
Sustain were very good from start to finish and where there were glitches they resolved them quickly or explained them clearly.
Intial contact was great and the survey visit very informative.
They were good at staying in touch regarding the quote and next steps.
Nearly everything happened when they said it would and they recovered well from the delivery issues with the panels which were delayed and required two visits.
This meant the panel fitting and electrical work took place on the same day. That process worked seamlessly.
There explanation of the app and inverter etc was very clear and useful.
I’d definitely recommend them as a supplier and fitter of solar panels.
Excellent Service.
From the Quotation stage through to the installation the Sustain team were very professional and knowledgeable. The installation team were a pleasure to have in and around our home working efficiently and considerately removing all their rubbish and leaving all areas clean and tidy. A special mention to the electrical team (Pete & Rio) who run the cables neatly under the floor to connect to the consumer unit in the middle of the house. Rio took the time to explain and demonstrate the system components and assist in downloading the app and showing me how to use and monitor the system. I can now see at a glance what my panels are producing, What I'm using, What I'm importing from the grid and exporting to the grid.
Would certainly recommend Sustain based on my experience using them.
A really great installation!
A really great installation and experience with the team at Sustain.
Had them come and work to install PV and battery setup through Solar Together.
The team were very professional throughout, not just from the office perspective, but for all the team who came on site.
They listened to our wants with regards to layout of the system, building this into their plan, and on day of the installation, we discussed the cable run location, as well as details on where the batteries and inverter could be positioned with the installers who really understood our aims.
I highly commend the team too. There was
a few minor issues with roof felting after the installation which the team addressed and scaffolding was up for a week after work was completed, but nothing that caused an issue, and when raised to the team, they came within 2 days to collect.
Thank you to Sustain, a brilliant company!

Reply from Sustain - Solar, Heat Pumps & HomePlans
Awesome team who deliver
Awesome team. Deliver quickly, efficiently and tidily. They are a really polite and pleasant team. I would recommend this team to anyone for Solar PV work. Thank you all!

Reply from Sustain - Solar, Heat Pumps & HomePlans
Very Professional installation.
The team that came to do the installation were courteous and professional. It gives me confidence that signing with Sustain was the right decision.
One small negative was the organisation from head office. Not all equipment delivered as it should have been, amending visiting time then not keeping to it without notification.
Pete and Rio did a great job.
Solar system installation
From the initial contact with Sustain Homes, who were the Solar Together Berkshire chosen solar supplier, the process has been excellent. Sustain were extremely helpful in explaining the system, very patient with my numerous queries and at no point put any pressure on me. The installation of the solar system and the ev charger could not have been smoother, with all trades (deliveries, scaffolders, roofers and electricians) being helpful, polite and putting in a lot of effort, and with a smile. We are now generating a significant number of kwh and delighted with the result. From a price perspective the Solar together scheme has saved us a significant amount and based on our own experience I certainly recommend the scheme and Sustain Homes have been exemplary in their delivery. Thank you to all concerned.
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