JD Allen Solar Ltd
Companies House
Active incorporated business
Trust score
57out of 100
Rating5.0★
Review volumeLow · 7
Source diversity1 source
VerificationListed
Based on rating, review volume, independent sources and verification. Evidence context — not a guarantee of workmanship.
Trust at a glance
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JD Allen Engineering are trusted solar panel installers in London and the South East, offering environmentally-friendly energy solutions across all of London, Bromley, Croydon, Surrey, and Kent. With a focus on reliability and sustainability, we specialise in delivering cost-effective solar photovoltaic installations for both residential and commercial properties. Our commitment to eco-conscious practices ensures that your energy needs are met with efficiency and environmental responsibility, paving the way for a greener future in the heart of the city.
Reviews · public evidence
What customers say
5.0out of 5
5 stars7
4 stars0
3 stars0
2 stars0
1 star0
Highlights
"Solar installation including 8 panels, inverter and battery. Experience was very positive - from the initial survey it was clear that high attention to detail was being paid. They were very good at taking us through our options and weren't upselling us on more expensive options. We found the prices to be very competitive. When it came to the work, they were on time, efficient and great to deal with. The internal works were thoroughly discussed, as part of the job entails creating a route for the new cables to run. Work itself inside the house was very tidy with minimal mess."
"Solar system fitted. Successfully resolved some major issues I had with the previous fitter who walked out on the job and left me in a very difficult situation. Very professional and hardworking. Huge contrast to what I been left with previously. Pity I didn't come to JD Allen first. Highly recommended."
"I engaged JD Allen on behalf of a community group looking to get some solar panels installed at a facility used by local volunteers. They were enthusiastic, despite the project throwing up some complexities, which I think speaks to both their community orientation and their professionalism. All of JD Allen's staff were responsive, courteous and helpful from the first site visit to the final invoice and the job got done to a very high standard and we have since engaged them for further work on our site!"
Detailed reviews
Solar installation including 8 panels, inverter and battery. Experience was very positive - from the initial survey it was clear that high attention to detail was being paid. They were very good at taking us through our options and weren't upselling us on more expensive options. We found the prices to be very competitive. When it came to the work, they were on time, efficient and great to deal with. The internal works were thoroughly discussed, as part of the job entails creating a route for the new cables to run. Work itself inside the house was very tidy with minimal mess.
Solar system fitted. Successfully resolved some major issues I had with the previous fitter who walked out on the job and left me in a very difficult situation. Very professional and hardworking. Huge contrast to what I been left with previously. Pity I didn't come to JD Allen first. Highly recommended.
I engaged JD Allen on behalf of a community group looking to get some solar panels installed at a facility used by local volunteers. They were enthusiastic, despite the project throwing up some complexities, which I think speaks to both their community orientation and their professionalism. All of JD Allen's staff were responsive, courteous and helpful from the first site visit to the final invoice and the job got done to a very high standard and we have since engaged them for further work on our site!
Previously supplied
They fitted a House-Battery and charger point for Electric car.
JD Allen Engineering installed a complete Solar PV system including solar panels on the roof, inverter and battery in the attic. It included an Emergency Power Supply. I asked lots of questions about the design and the various installation options and Derek and his team responded timely and patiently. The installation then went as planned, they commissioned the system and explained all the newly installed devices. They also registered the new system with the various agencies. I've had the system now for 2 months and I'm very happy with it.
14 PV panels installed together with inverter and storage battery
Companies House registration
ActiveActive incorporated business
JD Allen Solar Ltd is linked to a Companies House entry. This shows the business registration, not evidence of workmanship or service quality.
Legal nameJD Allen Solar Ltd
Company number12152306
Incorporated
Registered activityElectrical equipment repair
Official checkListed
Public evidence checks
Public evidence shownTrust checks and red flags
Public review evidence5.0★ from 7 public reviewsAcross Which? Trusted TradersWhich? Trusted Traders
Sources
1 named sourcesEvery signal, traced to its origin
Review sources
Public evidence checks
What's strong, and what to check yourself
✓Strong signals
✓Rating: 5.0★
!Worth checking yourself
!Review volume: Low · 7
!Source diversity: 1 source
!Verification: Listed
Public evidence last checked May 2026
Good to know
Common questions about JD Allen Solar Ltd
What do customers say about JD Allen Solar Ltd?
JD Allen Solar Ltd has 7 public reviews, averaging 5 out of 5. You can read the individual reviews and where each came from in the reviews section above.
Is JD Allen Solar Ltd a registered business?
JD Allen Solar Ltd is a registered business on Companies House (company number 12152306), incorporated 12 Aug 2019, listed as active. This confirms the legal registration of the business — not evidence of workmanship or service quality.
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