Joju Solar Panels Review (2026): Price, Wait Times & Verdict
Joju Solar is one of the UK’s longest-running solar installers. It was founded in London in 2006, built some of the country’s first community-owned solar projects, and now works for councils, businesses and homeowners across England, alongside its EV charging arm, Joju Charging. This review covers what Joju installs, how its pricing and timescales work, what customers say, what Companies House shows, and how it compares with the nationals and a local MCS installer.
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Who are Joju Solar?
Joju was founded in 2006 by Joe Michaels, who is still chief executive, and Dr Chris Jardine. It says it was the first accredited solar installer in London, and it built one of the UK’s first community-funded solar projects. Since then it has installed on homes, schools, factories, warehouses, hospitals, churches, police stations and cathedrals. Clients listed on its site include the Science Museum, Greenpeace, Marks & Spencer, Reading Council, Dorset Council, Hampshire County Council, Avon and Somerset Police and Salisbury Cathedral. It claims to have built nearly 15% of the UK’s community renewables.
It holds the credentials you’d expect of a serious installer: MCS certification, RECC membership (the consumer code for renewables), SafeContractor, NICEIC, and OZEV approval for EV chargers. It has also won industry awards, including a Highly Commended in the Solar Power Portal Installer of the Year category. In 2026 Joju markets three things: solar PV, battery storage and EV charging, split between commercial, public-sector, community-energy and residential customers.
Our scores
Our rating
Joju Solar (residential)
★★★★☆ Experienced, well-credentialed, weaker on price transparency and aftercare
The bottom line: a genuine specialist with two decades of track record and well-regarded installs. Get its aftercare commitments and workmanship guarantee in writing, and compare the price, because none of it is published.
Compare with a local MCS quote →What Joju installs for homes
- Solar panels. These are designed to the roof rather than picked from a fixed menu, including all-black panels and roof-integrated systems, which suit period homes and conservation areas (in-roof panels, conservation areas).
- Batteries. Joju is a certified Tesla Powerwall installer and fits other battery systems too. See the Powerwall 3 review and best solar batteries.
- EV chargers. These are OZEV-approved home chargers, often combined with solar and a battery (best home EV chargers).
Joju doesn’t publish a standard panel, inverter or battery list for homes. Ask for the exact models in writing on your quote, so you can check them against our reviews (best solar panels UK, inverters explained).
Joju Solar prices
Joju doesn’t publish prices. Every system is quoted after a survey, which is normal for a bespoke installer but makes it harder to judge value at a glance. As a guide, these are typical 2026 market prices for the areas Joju works in most, all with 0% VAT:
| System | London & inner South East | Oxford & Home Counties | With 5kWh battery (add) |
|---|---|---|---|
| 3kW | £5,200–£6,800 | £4,800–£6,000 | +£3,000–£4,000 |
| 4kW | £6,500–£8,500 | £6,000–£7,500 | +£3,000–£4,000 |
| 6kW | £8,000–£10,500 | £7,000–£9,300 | +£3,000–£4,000 |
| Tesla Powerwall 3 (13.5kWh) | £7,400–£9,900 installed across the market | — | |
A bespoke design, in-roof panels, a period or listed roof, or central London scaffolding can put a Joju quote at the upper end or above these ranges. A plain semi-detached roof should land within them. If your quote is well above the range for your system size, ask for it itemised: panels, inverter, battery, scaffolding, labour and bird protection. National context: solar panel cost UK, solar panels London and solar panels Oxford.
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Tell us the system size and battery. A vetted local installer will survey your roof and price the same specification, itemised, with a ten-year workmanship guarantee.
Compare With a Local MCS Quote →Wait times and the installation process
Joju doesn’t publish lead times either. Based on how bespoke installers typically work, expect:
- Enquiry to survey: usually one to three weeks.
- Survey to quote: a few days to two weeks for a designed system.
- Grid approval: a system over 3.68kW, or with a battery, needs a G99 application to your network operator before connection, which can add several weeks.
- Install: one to two days on site once scaffolding is up. In London, allow time for scaffold licences and parking suspensions.
Allow roughly six to ten weeks from first contact to switch-on for a typical home system, and ask Joju for a written timetable when you accept the quote. See how long solar installation takes.
Warranties and aftercare
Panel and battery warranties come from the manufacturers, typically 25–30 years on panels and 10 years on batteries. What Joju controls is the workmanship guarantee, which covers roof fixings, leaks and wiring, and aftercare. Joju doesn’t publish its workmanship term, so ask for it in writing. The benchmark from a good installer is ten years, insurance-backed, and BOXT and E.ON give two. Aftercare is the area customers criticise most (see reviews), so also ask how faults are reported, the target response time for an engineer visit, and whether there’s a charge after the first year. See solar panel warranties explained and solar panel servicing.
Joju Solar reviews: what customers say
On Trustpilot, Joju has a TrustScore of 3.2 out of 5 from 63 reviews. That headline hides a split picture: 84% of reviews are five-star and 12% are one-star. The low score reflects the weight Trustpilot gives to recent reviews and the handful of strongly negative ones, plus the fact that Joju collects few reviews (only a few in the last year). Its Checkatrade profile, trading as Joju Ltd, is 10/10 from a small number of reviews.
- What customers praise: professional, knowledgeable installation teams, careful pre-installation planning, no sales pressure and patience with questions.
- What customers criticise: aftercare, including slow responses and long waits for an engineer visit after installation, and customer service that some say has become less responsive.
The takeaway: installation quality isn’t the concern, but get aftercare commitments in writing. See also how to check any installer.
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Compare With a Local MCS Quote →Joju Solar on Companies House
People searching “Joju Solar Companies House” often find something confusing, so here’s what the register shows:
| Company | Number | What it is |
|---|---|---|
| Joju Ltd | 05881628 | The trading company, incorporated July 2006. It files full accounts (latest for the year to 30 September 2025, filed February 2026), and its 2026 confirmation statement has been filed. |
| Joju Solar Limited | 10536383 | A dormant company set up in 2016 that files dormant accounts. It isn’t a trading business, so it’s likely held to protect the name. |
| Joju Charging Network Limited | 11476928 | The EV charging arm. |
Joe Michaels is the person with significant control of Joju Ltd. Co-founder Dr Chris Jardine stepped down as a director and ceased to be a person with significant control in April 2024, and a new director was appointed in December 2024. Nothing on the register suggests financial distress. The practical point is to make sure your contract is with the trading company (Joju Ltd), and to pay any deposit by credit card, as you should with any installer after this year’s collapses at GivEnergy and Effective Home.
Where Joju covers: London, Oxford and beyond
Joju’s head office is in the City of London, and it has a long track record around Oxford. That’s where the “Joju Solar Oxford” searches come from, and its Checkatrade profile is Oxford-based. Its commercial and public-sector projects run across England, from the Isle of Wight to Barnsley. For homes, coverage is strongest in London, Oxfordshire and the Home Counties. Ask whether your postcode is in its regular area, because distance affects aftercare response times. Local guides: London, Oxford, Sheffield, Crawley and installers near me.
Joju Charging and EV chargers
Joju Charging is the company’s EV business. It works with nearly 100 public authorities on on-street and public charging, and it also installs OZEV-approved home chargers. If you’re adding solar, a home charger with solar-aware charging can use surplus that would otherwise be exported. See EV charger installation cost, best home EV chargers and solar and EVs.
Joju vs BOXT vs E.ON vs OVO vs a local installer
| Joju | BOXT | E.ON | OVO | Vetted local MCS installer | |
|---|---|---|---|---|---|
| Pricing | Survey quote, not published | Fixed price online | Published packages | Published from-prices | Survey quote, itemised |
| Kit choice | Bespoke, Tesla-certified | Fixed: Aiko + Sunsynk/Tesla | Aiko + Sunsynk/Tesla | Not named upfront | Your choice |
| Workmanship | Ask (not published) | 2 years | 2 years | 10 years | Usually 10 years |
| Best for | Complex, period or combined solar + EV jobs | Simple pitched roofs | E.ON customers | OVO customers | Most homes |
Full rundown of the nationals: solar panel companies UK, plus BOXT, E.ON, OVO and Octopus.
Pros & cons
Pros
- 20 years of trading, among the longest in UK solar
- MCS, RECC, NICEIC, SafeContractor and OZEV accredited
- Strong council, commercial and community-energy track record
- Bespoke design, including all-black and in-roof panels
- Certified Tesla Powerwall installer, with EV charging under one roof
- Installation quality consistently praised
Cons
- No published prices or lead times
- Trustpilot 3.2/5, with aftercare complaints
- Workmanship guarantee term not published
- Focus has shifted towards commercial, public-sector and EV work
- Two similarly named companies can confuse contract checks
Verdict: should you use Joju Solar?
3.8 / 5. Joju is a credible, long-established specialist, and one of the few UK installers with 20 years of trading behind it, whose installs customers rate highly. It’s a good fit for more complex jobs, such as period and conservation-area roofs, in-roof panels, or solar combined with a Powerwall and an EV charger, in London, Oxfordshire and the Home Counties.
For a standard home, the gaps are transparency and aftercare. Because there are no published prices, you can’t judge value without a comparison, and the reviews that criticise Joju almost all concern what happens after installation. Before you sign, get the workmanship guarantee, response times and exact kit in writing, check the contract is with Joju Ltd, and get one comparable quote from another vetted MCS installer.
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Joju Solar: frequently asked questions
Is Joju Solar any good?
Joju is a credible, experienced installer. It has traded since 2006, is MCS certified and a RECC member, is a certified Tesla Powerwall installer, and has a long track record with councils, businesses and community energy groups. Customers consistently praise the installation quality. The weaker points are that prices and lead times aren’t published and that reviews criticise slow aftercare, so get the workmanship guarantee and response times in writing and compare the price with another MCS installer.
How much does Joju Solar charge?
Joju doesn’t publish prices, and every system is quoted after a survey. As a guide, a 4kW system in 2026 typically costs £6,500–£8,500 installed in London and £6,000–£7,500 in Oxfordshire and the Home Counties with 0% VAT, plus £3,000–£4,000 for a 5kWh battery, while a Tesla Powerwall 3 costs £7,400–£9,900 installed across the market. Bespoke designs, in-roof panels or complex roofs can cost more.
Is Joju Solar on Companies House?
Yes. The trading company is Joju Ltd, company number 05881628, incorporated in July 2006. It files full accounts, the latest for the year to 30 September 2025, and is up to date with its filings. Joju Solar Limited, company number 10536383, is a separate dormant company that doesn’t trade, and Joju Charging Network Limited is the EV charging arm. Make sure your contract is with the trading company.
What do Joju Solar reviews say?
Joju has a Trustpilot score of 3.2 out of 5 from 63 reviews, but 84% of those reviews are five-star and 12% one-star. Positive reviews praise professional, knowledgeable installers, careful planning and no sales pressure. Negative reviews mostly concern aftercare, with slow responses and long waits for engineer visits after installation. Its Checkatrade profile scores 10 out of 10 from a small number of reviews.
Where does Joju Solar cover?
Joju’s head office is in the City of London, and it has a long track record around Oxford. It carries out commercial and public-sector projects across England, while home installations are concentrated in London, Oxfordshire and the Home Counties. Ask whether your postcode is within its regular area, as distance can affect aftercare response times.
How long does Joju Solar take to install solar panels?
Joju doesn’t publish lead times. For a bespoke installer, allow one to three weeks for a survey, up to two weeks for a quote, several weeks for G99 grid approval on systems over 3.68kW or with a battery, and one to two days on site. Six to ten weeks from first contact to switch-on is a reasonable expectation for a typical home system, so ask for a written timetable when you accept the quote.
This review is independent. Going Solar UK is not affiliated with Joju and is paid by installers in our own network, not by Joju or any energy supplier. Company history, clients, accreditations and services are as published by Joju in 2026. Review scores are from Trustpilot and Checkatrade in September 2026 and change over time. Company details are from Companies House as of September 2026. Price ranges are typical 2026 market figures for guidance, not Joju’s prices. Wait-time estimates are typical for bespoke installers, not Joju’s published figures. 0% VAT on residential solar and batteries applies until 31 March 2027 per HMRC. Always get quotes from MCS-certified installers and check warranties in writing.