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The 11 Best Solar Panel Installers in London

Solar in London is sold by local electrical firms, regional installers and national companies that offer monthly plans. Roofs here are often small, shaded or in conservation areas, so the survey and design matter as much as the price of the panels.

This guide explains what each installer fits, which accreditations it holds, how it quotes and what warranties come with the system, so you can compare two or three fixed quotes on the same basis.

How this guide is ordered

A list of solar panel installers in London ranked by expertise, ratings, verifiable details and where they're based.

Some businesses appear more prominently because they have paid for visibility services.

Top 3Full listMapHow to choose

Compare 11 local options

Discover Solar Ltd, London#1
What stands out
  • Three set solar and battery packages

  • MCS and RECC accredited

  • EV chargers too

Discover Solar Ltd

5.092 reviews
The Chocolate Factory, 5 Clarendon Rd, London N22 6XJ, UK
Best for
Fixed-price solar and battery bundles

Discover Solar suits households who want a solar and battery system sold as a clear, fixed-price package. The Wood Green installer offers three bundles that pair a solar array with a Fox ESS battery, using Aiko panels. It also fits EV chargers for homes and businesses. The firm displays MCS, NAPIT, RECC and TrustMark accreditation. Quotes are free and fixed-price, which makes comparing them with other installers straightforward.

Tarven Solar Energy, London#2
What stands out
  • In-house electricians and surveyor

  • NICEIC and MCS accredited

  • Enphase and Tesla systems

Tarven Solar Energy

4.9197 reviews
2nd Floor (Right, Downe House, 303 High St., Orpington BR6 0NN, UK
Best for
Solar with electrical work included

Tarven Solar Energy suits south-east London and Kent homeowners who want an electrical contractor behind their solar system. The Orpington company installs solar panels, battery storage and EV chargers for homes and businesses. Its team page lists directors, a surveyor, designers, electricians, panel installers and apprentices. It displays MCS, NICEIC, RECC and TrustMark accreditation and is a Living Wage employer. A site survey comes before every quote.

The Solar Co., London#3
What stands out
  • 10-year installation guarantee

  • Which? Trusted Trader

  • Help with grant applications

The Solar Co.

5.082 reviews

Open 24 hours

21-23 Elmfield Rd, Bromley BR1 1LT, UK
Best for
Solar, battery and EV charger together

The Solar Co. is a good fit for south London and Bromley households who want panels, a battery and an EV charger in one job. The Bromley installer fits solar panels, batteries including Tesla Powerwall, and EV chargers. It displays MCS, HIES and TrustMark accreditation and is a Which? Trusted Trader and an Octopus trusted partner. Installations come with a 10-year guarantee. Help with grant applications is offered at the first consultation.

The Solar Bureau, London#4
What stands out
  • No sales representatives

  • Firm price before survey

  • Repairs to existing systems

The Solar Bureau

4.8314 reviews
Martinbridge Industiral Estate, Lincoln Rd, Enfield EN1 1SP, UK
Best for
Remote quotes and system repairs

The Solar Bureau suits buyers who want a firm quote before anyone climbs onto the roof. The Enfield installer designs each system remotely from the address, then sends a proposal with the panels, inverter, estimated savings and installation price. A technical survey of the roof and electrics follows before fitting. It does not employ sales representatives. Panels come with a 25-year linear guarantee and inverters with a 10-year guarantee.

JD Allen Solar Ltd, London#5
What stands out
  • Fixed itemised quotes

  • Repairs to existing systems

  • Bromley Trading Standards approved

JD Allen Solar Ltd

5.047 reviews
58 Elwill Way, Beckenham BR3 6RZ, UK
Best for
Solar and electrics in south-east London

JD Allen Solar suits Bromley, Beckenham and Croydon homeowners who want an itemised quote and local follow-up. The Beckenham installer handles solar PV, battery storage, EV chargers and general electrical work. Its process runs from a free assessment to a fixed, itemised quote, system design, installation and support. It holds MCS, NAPIT, RECC and TrustMark accreditation and is a Which? Trusted Trader. It also maintains and repairs existing solar systems.

Acen Solar & Electrical, London#6
What stands out
  • Trading since 2017

  • NICEIC and MCS accredited

  • Network operator approval handled

Acen Solar & Electrical

5.046 reviews
44 Broadway, London E15 1XH, UK
Best for
Solar with electrical upgrades

Acen Solar & Electrical suits east London homes and businesses that need solar alongside wider electrical work. The Stratford firm has traded since 2017 and installs solar PV, battery storage, Tesla Powerwall and EV chargers. Its electricians also replace consumer units, rewire, carry out EICR tests and fit smart home systems. It holds MCS, NAPIT and NICEIC accreditation and is a member of RECC. Network operator approval is obtained before the installation date.

Eva's Energy, London#7
What stands out
  • Battery-only option

  • Design shown before site visit

  • MCS and NICEIC

Eva's Energy

5.044 reviews
27 Gilbert Rd, Bromley BR1 3QP, UK
Best for
Family-run solar and batteries in Bromley

Eva's Energy suits Bromley and Kent households who want a small, family-run installer and a clear step-by-step process. The company fits solar PV with battery storage, or a battery on its own. It is MCS certified for solar PV and an NICEIC Approved Contractor. Customers first see a proposed design with the roof layout, equipment and estimate, then a site visit checks access and electrics. Any survey fee is agreed before the visit is booked.

Keenan Solar, London#8
What stands out
  • No subcontracted engineers

  • Fixed price after free survey

  • MCS, NICEIC and RECC

Keenan Solar

4.945 reviews

Open 24 hours

Colney Hatch Ln, Muswell Hill, London N10 1LJ, UK
Best for
Directly employed engineers in north London

Keenan Solar suits north London households who want their installers employed by the company itself. All its engineers are direct employees, and a free home survey leads to a fixed price that does not change. Systems pair Jinko panels with Fox ESS or EcoFlow inverters and batteries. The company aims to finish installation within four weeks of booking. A sister business handles EV chargers and general electrical work.

Solar4Good, London#9
What stands out
  • Five-year workmanship cover

  • In-person roof survey

  • MCS and HIES accredited

Solar4Good

4.6205 reviews

Open 24 hours

79 College Rd, Harrow HA1 1BD, UK
Best for
Fixed prices and aftercare

Solar4Good suits homeowners who want a long workmanship guarantee and a price that does not change after the survey. The family-run Harrow company has fitted solar since 2020 and caps the number of installations it takes on each year. Its own MCS-registered installers do the core work, and every roof is surveyed in person before fitting. Systems carry a five-year workmanship guarantee on top of manufacturer warranties. Monitoring, servicing and repairs are offered afterwards.

SogoSolar, London#10
What stands out
  • Installing solar since 2010

  • Which? Trusted Trader

  • SolarEdge and REC equipment

SogoSolar

4.835 reviews
Unit 6, 221A High St, Hampton Hill, Hampton TW12 1NP, UK
Best for
Tailored systems in south-west London

SogoSolar suits south-west London and Surrey homeowners who want an installer with a long track record. The company has installed solar panels since 2010 from its base in Hampton Hill. It combines solar PV, battery storage and EV charging points into one system. Equipment comes from makers such as SolarEdge, REC and Tesla. It is listed as a Which? Trusted Trader, and each job is assessed and designed individually.

Sunsave, London#11
What stands out
  • Monthly plans over 10 or 20 years

  • Repair guarantee on 20-year plans

  • Two-day installation

Sunsave

4.6100 reviews
296, 302 High Holborn, London WC1V 7JH, UK
Best for
Solar with no upfront cost

Sunsave suits households who want solar and a battery without paying upfront. The London-based company sells and installs systems on monthly plans over 10 or 20 years, or for a single payment, and the customer owns the system from day one. A solar and battery installation usually takes two days. Its app and Sona software manage battery charging and exporting. Workmanship is covered for five years, panels for 25 years and batteries for 10.

The comparison at a glance

#BusinessRatingReviewsBest for
#1Discover Solar Ltd 5.092Fixed-price solar and battery bundles
#2Tarven Solar Energy 4.9197Solar with electrical work included
#3The Solar Co. 5.082Solar, battery and EV charger together
#4The Solar Bureau 4.8314Remote quotes and system repairs
#5JD Allen Solar Ltd 5.047Solar and electrics in south-east London
#6Acen Solar & Electrical 5.046Solar with electrical upgrades
#7Eva's Energy 5.044Family-run solar and batteries in Bromley
#8Keenan Solar 4.945Directly employed engineers in north London
#9Solar4Good 4.6205Fixed prices and aftercare
#10SogoSolar 4.835Tailored systems in south-west London
#11Sunsave 4.6100Solar with no upfront cost

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Map of Solar Panel Installers in London

These installers are spread across Greater London, with several in the south-east around Bromley, Beckenham and Orpington and others in Wood Green, Muswell Hill, Enfield, Harrow, Stratford, Holborn and Hampton Hill.

Services to compare

  • Solar PV installationRooftop panels with an inverter, sized to your roof and your electricity use.
  • Battery storageHome batteries that store daytime solar or cheaper night-time power for use in the evening.
  • EV chargersHome chargers that can be set to run on solar power or off-peak tariffs.
  • Battery retrofitsAdding a battery to an existing solar system, or fitting a battery on its own.
  • Maintenance and repairsHealth checks, inverter replacements and fault repairs on existing systems.

How to choose Solar Panel Installers in London

  1. Check MCS certificationAn MCS-certified installation is needed to claim Smart Export Guarantee payments. Membership of a consumer code such as RECC or HIES adds deposit protection and a route for complaints.
  2. Insist on a proper surveyShading from chimneys, trees and nearby buildings is common in London. A survey of the roof and electrics before the final price avoids surprises on installation day.
  3. Compare warranties line by linePanels, inverters, batteries and workmanship carry separate warranties of different lengths. Ask who honours the workmanship warranty if the installer stops trading.
  4. Check planning in conservation areasMost rooftop panels are permitted development, but conservation areas, listed buildings and flats can need permission. Ask the installer to confirm before you pay a deposit.

Frequently asked questions

How much do solar panels cost in London?

It varies with the size of the system, the panels and inverter chosen, whether you add a battery and how easy the roof is to reach. Scaffolding is needed for most London installations and is included in some quotes but not others. Get at least two fixed quotes after a survey and compare the equipment and warranties, not just the total.

Can I get paid for the electricity I export?

Yes. Under the Smart Export Guarantee, larger electricity suppliers must offer a tariff for the power you send to the grid, as long as the installation is MCS certified. Rates vary between suppliers and tariffs, so compare them, and remember that a battery changes how much you export.

Do I need planning permission for solar panels in London?

Usually not. Most rooftop panels on houses are permitted development, as long as they do not stick out too far from the roof. Listed buildings, conservation areas, flats and panels on walls facing a road can need permission, so check with your council or installer before signing.

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