Endorsed by Which?

SW3 Green Energy Services Ltd

5.0

39 Reviews

Opening Hours
Today - 09:00–16:00
  • Monday 08:30–17:30
  • Tuesday 08:30–17:30
  • Wednesday 08:30–17:30
  • Thursday 08:30–17:30
  • Friday 08:30–17:30
  • Saturday 09:00–16:00
  • Sunday 09:30–15:00

Why you can trust this trader

After undergoing rigorous assessment to become endorsed, every Which? Trusted Trader agrees to our Code of Conduct. This gives consumers the reassurance that they have the best possible protection and adds an extra layer of security to ensure best practices and procedures are followed. Which? fully investigates any breaches and will take any necessary action to ensure consumer protection.

About

At SW3 Green Energy Services, we take a holistic approach to sustainable energy. We assess your property's unique needs, expertly install solar solutions, and provide ongoing maintenance. From initial assessment to installation and upkeep, we guide you on the journey to harness the sun's power for a sustainable, cost-effective energy future.

Join us in the solar energy revolution for a greener, more cost-effective future.

What we do

  • Renewable energy

    • Solar panels
    • Solar Panel Maintenance
    • Battery storage

Customer reviews

Why you can trust these reviews

All reviews are verified as being genuine and a true customer of this trader.

How can we be so sure?

100% of the reviews we publish have been through our stringent moderation process.

5.0
39 reviews
Customer Service
4.9
Quality
5.0
Value
4.9
Sort by
Professional job by Chris at SW3
Customer Service
Quality
Value
Really pleased with SW3. Chris was great to deal with – understands what customers need and is easy to reach on WhatsApp. Yes, they’re busy, but whenever I had questions or minor teething issues he responded quickly and got things sorted. Installation was punctual, tidy and professional. One cracked panel on arrival was spotted immediately and replaced without fuss. Nick the electrician was excellent – neat, efficient and knows his stuff. Six months on the system is performing as expected. Overall, a very positive experience and I’d happily recommend SW3.
Customer in Greater London Posted on 19/02/2026 , work completed 09/09/2025
Very good and efficient Job
Customer Service
Quality
Value
SW3 were extremely helpful throughout the entire process. The installation of the solar panels was explained to us very clearly, and we were given options regarding the placement of the battery and a full explanation of what to expect on the day of installation. On the installation day, two teams attended—roofers and an electrician. They worked efficiently, cleaned up thoroughly, and removed all rubbish. The electrician also gave us valuable advice on how to use the solar panels and battery, as well as how to operate the app to manage the system. Paul, the owner of the company, was always available and ready to assist whenever needed. Overall, a great job.
Customer in Greater London Posted on 05/02/2026 , work completed 16/01/2026
Excellent Experience with SW3 Green Energy Services Ltd!
Customer Service
Quality
Value
I had a great experience with SW3 Green Energy Services Ltd during my solar panel installation. The team was professional, organized, and thorough in their planning. They explained every step clearly and kept me updated throughout the project, making the whole process smooth and stress-free. The installation was completed to a high standard, and I’m really happy with the final outcome
Customer in Greater London Posted on 10/12/2025 , work completed 28/11/2025
Amazing work
Customer Service
Quality
Value
Our solar power story: Three years ago we had Sunpower solar panels installed on our house. The panels have Enphase micro inverters which have been fantastic. Yes, they cost more upfront than a string inverter but they have already paid for themselves by generating more electricity. Since then, I have been waiting patiently for Enphase's IQ System Controller to be released in the UK. That adds battery storage with a backup capability. If the grid goes down, the batteries keep us running. Yes, we could have gone with a Tesla Powerwall but the Enphase products - micro inverters + batteries + backup work better together. The installer who put in our panels couldn't help - they didn't have any experience with the IQ System. So I called Enphase for advice. Enphase put me in touch with SW3 Green Energy Services - apparently one of their star installers. I'm so glad they did. Chris listened to what I wanted, made some good suggestions, and gave me a quotation. There was a 3 week wait for an installation slot which wasn't too bad given I had already been waiting 3 years for the product to become available. The kit and the team arrived right on time. By the end of the day I was the proud owner of what Enphase tells me is first IQ System Controller to be installed in the UK. What really impressed me was the quality of the workmanship - the attention to detail. The wiring is a work of art. Beautifully laid out and tidy. I will definitely be using SW3 again to add extra batteries.
Customer in Surrey Posted on 06/12/2025 , work completed 21/11/2025
Excellent solar and battery install
Customer Service
Quality
Value
Paul and Chris looked after me from the very start and proved knowledgable, dependable and reasonable on costs. Communication was excellent throughout and after sales a particular highlight. Installation was flawless and the team polite, friendly and tidy. My system is working great and the team keep an eye on it to keep it working as well as it was on Day One. Would highly recommend.
Customer in Greater London Posted on 10/11/2025 , work completed 31/10/2025
Superb, trouble free installation of Solar panels and kit.
Customer Service
Quality
Value
From initial contact through to completion and after care, SW3 have provided a faultless service. As a family run business, they really care. Communication was great throughout the process. They responded to any queries/requests promptly and attended appointments when they said they would. Installation was extremely efficient, all done in one day. Nick the roofer and Will the electrician worked efficiently and cleanly throughout the day and Will took great pains to ensure trunking in the house was as unobtrusive as possible. He took time to explain the complicated installation to us so that we understood it and installed the apps on our phones, talking us through how that worked too. This could have been a daunting project for us, but SW3 ensured the process was simple. Wouldn't hesitate to recommend them.
Customer in Greater London Posted on 29/10/2025 , work completed 24/10/2025
Great decision
Customer Service
Quality
Value
I really wasn’t sure about having solar panels fitted. I had heard of the benefits, but it is expensive and a real faff, so when I contacted SW3, I was unsure. I needn’t have worried. Paul took care of all the forms, and although I stored the materials for a couple of days, installation was completed in less than a day. If I had a question (and I did), Paul would always call me straight back with advice on how to communicate with energy companies. Very happy I chose SW3.
Customer in Greater London Posted on 25/10/2025 , work completed 30/09/2025
Solar installation - Wimbledon
Customer Service
Quality
Value
SW3 did a great job installing panels at my house in Wimbledon. Excellent service. Really easy to work with. Explains everything very clearly. Excellent after sale service. Highly recommended
Customer in Greater London Posted on 04/10/2025 , work completed 22/08/2025
everything faultless
Customer Service
Quality
Value
I have never dealt with a better company. all operations were on time from start to completion. Scaffolders, panel fitters and electrician all excellent. Paul and Chris very good to deal with. Exceptionally pleased I chose them to install mt solar panels
Customer in Greater London Posted on 28/07/2025 , work completed 25/07/2025
Excellent Job, Couldn’t Be Happier with the Victron Setup
Customer Service
Quality
Value
I’m really happy with how the Victron system installation turned out. The installer did a fantastic job, everything was finished perfectly, and you could tell they genuinely cared about getting it right. They paid attention to the small details and didn’t rush through anything. What stood out most was their willingness to go the extra mile. They took the time to troubleshoot and make sure everything was set up and working exactly as it should. It gave me a lot of confidence in the system and peace of mind knowing it was done properly. Overall, I couldn’t be more satisfied. If you’re looking for someone who knows what they’re doing and takes real pride in their work, I’d highly recommend them.
Customer in Greater London Posted on 25/07/2025 , work completed 24/07/2025