Boost your savings with the best solar panels in London

• Credentials and expertise: Preference was given to established installers holding Microgeneration Certification Scheme (MCS) accreditation and other professional credentials.

• System quality: Selection focused on installers utilising high-quality panels and inverters with long-term warranties, including integrated battery storage solutions.

• Pricing clarity: Priority was given to companies offering itemised quotes, clear cost breakdowns, and straightforward advice on financing and energy incentives.

• Client care: Communication, reliability, and project support were assessed, highlighting companies with professional installation standards and after-sales care.

Figures from the Department for Energy Security and Net Zero show that the UK's installed solar capacity now exceeds 19 gigawatts (GW), representing more than four million residential installations. Solar power has transitioned from a niche choice for rural settings into a standard feature of urban housing and business infrastructure. To assist with the move to renewable energy, the top solar panel installers in London have been reviewed. This selection highlights companies recognised for their technical expertise, system reliability, and transparent billing.

How much do solar panel services cost in London?

Bespoke solar panel installations in London generally cost between £4,500 and £8,000 for a typical 3 to 4 kW system. Total costs scale with system capacity, and final pricing depends on factors like battery integration and roof accessibility.

1. The Solar Co.

Contact Details: +44 20 3193 8888

Operating Hours: Monday to Sunday: Open 24 Hours

Website

The Solar Co. focuses on both domestic and commercial solar setups, designing custom systems for properties ranging from residential homes to large business premises. The company is registered with the Home Insulation and Energy Systems Contractors Scheme (HIES), ensuring consumer protection and insurance backing. They also install integrated solar battery systems, helping clients save on utility bills by storing excess energy. The installation teams maintain clean workspaces and leave properties tidy. While they are a strong choice for new installations, the business focuses solely on new projects and does not offer standalone repairs or maintenance for existing arrays.

Superb installation

“The Solar Co. was highly responsive, answering all queries promptly. They outlined the project clearly and delivered the work exactly as promised. Scaffolding was erected safely, and the installation was neat, tidy, and highly professional.”

• Mr Andy Scholes, Google Review

Responsive team

“The team was responsive, visiting the site quickly and providing a competitive quote. The work was completed in a timely manner, and the installers were polite, skilled, and highly professional.”

• Ms Lucy Gregory, Google Review

2. Acen Solar & Electrical Ltd

Contact Details: +44 20 3005 3282

Operating Hours:

• Monday to Friday: 7:30 am to 5 pm
• Saturday: 9:30 am to 1:30 pm

Website

Acen Solar & Electrical Ltd has ten years of experience delivering residential, commercial, and off-grid solar solutions across London. The company focuses on clean aesthetic integration, designing arrays that complement the building's architecture. Their portfolio includes solar and battery setups on family homes and commercial offices. The firm offers product warranties of up to 25 years alongside a two-year workmanship warranty on all installations. Quotes are fully itemised, displaying clear costs for hardware, labour, and scaffolding. As they operate with a smaller core team, booking lead times can increase during busy seasons.

Very helpful team

“After researching local installers, I selected Acen Solar. They were patient with my questions, revising the proposals until we established the optimum configuration. The installation was completed within a week, and the system is performing exceptionally.”

• Mr Naveed Bashir, Google Review

Excellent job

“The engineer from Acen installed and commissioned our solar and battery system. His work was neat, precise, and professional. He was reliable and flexible regarding site schedules, and I highly recommend their services.”

• Mr Ian James, Google Review

3. Sunsave

Contact Details: +44 20 3868 3236

Operating Hours: Monday to Saturday: 9 am to 6 pm

Website

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Sunsave provides a subscription-style finance package, 'Sunsave Plus', which removes the upfront cost of solar installation by replacing it with a fixed monthly payment. The subscription covers monitoring, maintenance, and parts replacement for twenty years. Fully MCS-accredited, the company is backed by the government's Department for Energy Security and Net Zero, ensuring compliance with national guidelines. Online video consultations are available to help homeowners explore finance paths. The installation and customer care teams are highly rated for clear communication. However, homeowners should note that long-term subscription payments result in a higher total cost than buying the system outright.

Easy process

“I recently completed an installation with Sunsave and found the process straightforward. The team was highly supportive, easily contactable, and accommodated a last-minute request to integrate an EV charger into the quote.”

• Mr Steve Garroway, Google Review

Honest advice and great service

“Sunsave provided honest advice and fast response times. They advised against installing additional panels that would not yield a return on investment, showing they prioritize client suitability over maximizing revenue. I highly recommend them.”

• Mr Martin Kievit, Google Review

4. Discover Solar Ltd

Contact Details: +44 20 3633 0298

Operating Hours:

• Monday to Friday: 9 am to 6 pm
• Saturday: 9 am to 5 pm

Website

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Discover Solar Ltd provides solar packages ranging from 3.68 kW to 7.36 kW, serving both residential and commercial clients across London. The firm offers competitive promotions, occasionally including free solar panels for combined solar and battery storage bookings. The team carries out full on-site structural surveys to ensure accurate designs and quotes. Their electricians are highly rated for clean work and for explaining the system monitoring software to clients. As a newer company in the London market, their long-term track record is still developing, though initial feedback remains highly positive.

Incredibly tidy work

“I am highly satisfied with the installation. The team was professional, punctual, and left the site exceptionally tidy. The system is delivering energy savings that exceed their conservative initial estimates.”

• Mr Sami Mahawish, Google Review

Kind and professional team

“The team completed a neat and professional installation over the weekend. They answered all my questions, configured the monitoring software quickly, and delivered outstanding service.”

• Mr Pirasanthan Nadarajah, Google Review

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