13 of the Best Solar Companies in the UK

Since 2012, solar install prices have come down by 90% while electricity costs have increased by approximately 97%. There’s no denying that it’s a great time to complete a solar project, but taking this step does still incur a significant upfront cost and so it’s important to do your research to ensure you choose a reputable, experienced company to work with.

Let’s run through the key things to consider in order to choose the best solar company for you:

Reputation: Be sure to check out a company’s track record by reading their reviews so you can gauge customer satisfaction rates and have confidence in the service they provide. Choose a company that has been operating for several years to guarantee experience and trustworthiness.

Warranties: Research what warranties a company’s products come with. A comprehensive warranty ensures protection against defects and performance issues, giving you peace of mind and confidence in your investment. The best solar panels typically come with a 25 year product warranty and a 25-30 year power warranty.

Product Quality: Look for certifications that signal high quality products that meet the necessary standards and regulations of the industry. The main one for solar products is the Microgeneration Certification Scheme (MCS). Although not required by law, this certificate is essential if you’re applying for financial funding through an incentive scheme. For example, the Smart Export Guarantee allows you to receive payments for exporting energy to the grid. The Home Insulation & Energy Systems Quality Assured Contractors Scheme (HIES) is another important accreditation to look out for to ensure the highest level of consumer protection. 

For full transparency, we have included ourselves in this list but we have used the criteria above to assess a wide range of solar companies and we encourage you to do your research and judge for yourself.

Soly – Nationwide

Here at Soly, we stand out as one of the best solar companies because we are always guided by our customer focused approach. We have created a smooth digital journey for our customers to follow to ensure the process is seamless and stress free and we pride ourselves on clear communication throughout, from consultation to installation and beyond. Our customers testify to how much we care, which has earnt us a 4.7 rating on Trustpilot and a 4.9 rating on Google.

Soly combines the best of both worlds: we are a global company with over 10 years of experience and strong financial stability, but we work with vetted local installers nationwide, allowing widespread accessibility as well as offering a familiar and personal touch to our service. 

Like all of the best solar companies, we offer a range of solar products to meet your unique needs with industry leading performance guarantees for 25 years. We are accredited by MCS, HIES and Trustmark, as well as being a Which? Trusted Trader and a GivEnergy Approved Installer.

Listed below are some more top solar companies and the areas they install in: 

1. Everyone’s Energy – South and Midlands

Trustpilot Rating: 4.8

Accreditations: MCS, HIES, Trustmark

2. Greener Energy Group – Scotland

Trustpilot Rating: 4.4

Accreditations: MCS, HIES, EPVS, Trustmark 

3. City Energy Network – Wales 

Trustpilot Rating: 4.4

Accreditations: MCS, HIES, Trustmark

4. Clever Energy Boilers – Yorkshire 

Trustpilot Rating: 4.1

Accreditations: MCS, HIES, Trustmark 

5. Project Solar – Nationwide 

Trustpilot Rating: 4.6

Accreditations: MCS, HIES, EPVS

6. Chiltern Solar – London and Home Counties 

Trustpilot Rating: 4.0

Accreditations: MCS, RECC

7. Solar Fast – Nationwide 

Trustpilot Rating: 4.7

Accreditations: MCS, HIES, EPVS

8. Sunsave – Nationwide 

Trustpilot Rating: 4.7

Accreditations: MCS, HIES, Trustmark, Which? Trusted Trader

9. CRC Electrical and Renewables – East Anglia

Trustpilot: 4.3

Accreditations: MCS, HIES, Which? Trusted Trader

10. 0800 Repair – North East England 

Trustpilot: 4.8

Accreditations: MCS, HIES, Trustmark 

11. Solar Panel Installers London

Trustpilot: 4.8

Accreditations: MCS, RECC

12. Heron Electrical – Yorkshire

Trustpilot: 4.8

Accreditations: MCS, RECC

13. UK Solar Experts – Manchester

Trustpilot: 4.6

Accreditations: MCS, RECC

Soly, a Shell-UK-backed venture, is committed to sustainable practices throughout the installation process. We prioritise eco-friendly materials, energy-efficient processes and responsible waste disposal to minimise environmental impact during the installation process. As a BCorp company, Soly meets high standards of social and environmental performance, transparency, and accountability. By choosing Soly, eco-conscious homeowners can reduce their carbon footprint and contribute to a cleaner, greener future.

Sustainable Materials Used by Soly Installers

Soly, like many leading solar installation companies, uses high-quality, recyclable materials for solar panels, inverters and mounting hardware. We partner with Trina Solar, a provider committed to high standards throughout the manufacturing process. With more efficient factories, they emit less CO2 every year. Trina Solar is also a member of the PV Cycle, which means that all products are recycled at the end of their lifespan. This way, we know for sure that the solar panels we work with do not have a negative impact on the environment.