Missing evidence lowers the score because we can't check it. It doesn't mean it doesn't exist. Claiming a profile never changes the score. Evidence context, not a guarantee of workmanship.
These reviews are published independently on the named public source below, not testimonials this business chose to show. We bring them together and link each one back to where it appeared, so you can open the source and read it yourself.
5.0out of 5
5 reviews in public evidenceMost recent review
Where these reviews are published
Which? Trusted Traders5 reviews · 5.0 avg
Detailed reviews
Customer in Surrey
Customer recommends this business
Excellent work and help
I can’t praise the helpfulness and expertise enough of all the team who did the electrical work for me. They went to great lengths to find the best solutions and to explain the work. They were punctual. They cleared up afterwards and the cost was very fair.I I am delighted with the result.
Work completed:
Scores listed by Which? Trusted Traders
Customer Service
5 / 5
Quality
5 / 5
Value
5 / 5
Which? Trusted Traders Consumer5.0 / 5 ·
Endorsement Reference
J Tech carried out a variety of works at our home which included an upgrade to our current intruder system by adding in additional sensors thought out the house. They also installed (and now Monitor) a new CCTV system. They also upgraded our home entertainment system within our Cinema Room. We have been very happy with their pre install process, training and aftercare. I would highly recommend them
Which? Trusted Traders Consumer5.0 / 5 ·
Endorsement Reference
Needed an EICR prior to renting our property. The trader was friendly and efficient. He was very clean and tidy, cleaning up thoroughly after the work was completed. I was very happy with his professionalism and with the work that needed doing.
Which? Trusted Traders Consumer5.0 / 5 ·
Endorsement Reference
New network throughout property installed
Which? Trusted Traders Consumer5.0 / 5 ·
Endorsement Reference
I had some old and tired electrics in the flat I own. J-Tech gave us a reasonable quote and an early start date. We were really pleased with their communication through the whole process. Given that I am not an electrician it was refreshing to see a complete breakdown of works carried out. I have copied and pasted part of the email I received covering the work done: [quote] I have completed the work at the flat and a couple of extra bits along the way. There was an extra broken socket in the lounge and there were two faults on circuits which have been found and rectified. Fill hole exposing cables on external fitting Replace light fitting in store area by front door Replace x2 double sockets in lounge Replace double socket adapter and install single socket in lounge Replace bathroom light Move cooker switch to below join and install blank plate Bond the water pipe Remove two fuse boards and condense into one tidy up area removing all unnecessary items and re install timer spur for off peak immersion Fix fault on circuit in bathroom circuit went to joint box in bathroom next to shower and socket in lounge cable removed and joint box removed from wall Fix fault on heater circuit changed switch and re terminated cables (did not have new switch so replaced with one from van) Test and provide EICR [end quote]
Local context
Rated 5.0, in line with the local average for electricians in Coulsdon
Across 19 electricians in Coulsdon, the typical rating is 5.0 out of 5. We compare against the same businesses a homeowner would find searching for this trade locally.
02
From customer reviews
What customers consistently say
What this trader's customers report about their jobs, in their own words. Analysis updated 5 Aug 2026.
Respectful and tidy in your home: “He was very clean and tidy, cleaning up thoroughly after the work was completed.” · Which? Trusted Traders, 21 May 2024
Credentials and associations
Credentials and memberships
1
These credentials and memberships are attributed to named public sources. Check the source before relying on them.
Which? Trusted TradersListed, current status not shown
J-TECH SYSTEMS LIMITED is linked to a Companies House entry. This shows the business registration, not evidence of workmanship or service quality.
Legal nameJ-TECH SYSTEMS LIMITED
Company number07393435
Incorporated
Registered activityElectrical installation
Run by1 director (longest-serving director appointed in 2010)
Official checkOn the public register
Why this helps you judge trust: this trader is linked to a registered company with named people who are legally accountable for it, on an official register anyone can check, a layer of accountability an unregistered trader doesn't offer. Around 16 years on the register also points to an established business rather than a brand-new one.
Source-listed gallery
Photos listed on Which? Trusted Traders
16 photos
These sources do not label every image as completed work. The gallery may include projects, people, logos or certificates, so it does not count as completed-work evidence.
lighting install.jpg
home av rack.jpg
hik rack.jpg
av panel.jpg
outdoor TV.jpg
lutron lighting.jpg
lighting wiring.jpg
From Which? Trusted Traders
Opening hours
Open 7 days a week
The hours this business publishes online, handy for knowing when to call. Confirm before you set off.
Monday–Sunday
12am–11:59pm
03
Sources
Where this information comes from
2 named public sources
Everything on this page is drawn from named public sources. Where a source provides a public link, you can open the original and dig deeper.
Check dates vary by source. Where we hold a date, the check shows it.
04
About
Since our founding in 2008, J-Tech Systems has been committed to delivering innovative and tailored fire, security, and AV solutions across London and Surrey. Specialising in both residential and commercial properties; we provide bespoke systems designed to enhance safety, functionality and aesthetics. Operating from our bases in Surrey and London you can be assured of a prompt response to any enquiry. Our dedicated team offers comprehensive service from initial design to ongoing maintenance, ensuring every solution perfectly aligns with our client's needs. Trust us to safeguard your premises with expertly crafted solutions and a strong focus on customer satisfaction and technological excellence. We are accredited by the NICEIC, SSAIB and BAFE and employ only fully vetted and qualified individuals all of whom will carry company ID and drive sign written vehicles for your added peace of mind.
These are statements the business makes on its own website, worth confirming in writing (and on the official registers) before you hire, not independently verified by us.
Only a few public reviews are shown. Ask for recent references you can contact.
Verify at the sourceCheck them yourself
Electrical work in homes in England & Wales should be done by a registered competent person who can self-certify it meets the Part P safety rules. Check they're on the official register.
In England and Wales, notifiable electrical work (new circuits, a consumer unit, anything in a bathroom or kitchen) must by law be signed off under Part P of the Building Regulations. Confirm they will handle that.
✓
Prefer an electrician registered with a government-approved competent-person scheme (NICEIC, NAPIT or ELECSA) so they can self-certify the work meets the wiring regulations.
✓
Insist on the Electrical Installation Certificate (or Minor Works Certificate) when the job is done. It is your proof the work is safe and compliant, and you will need it if you ever sell.
Want an extra legitimacy check? Run the Cowboy Checker on J-Tech Systems Limited before you contact them.
A real, registered businessWe cross-checked Companies House: this business is officially registered for work that matches the electrician services it advertises - independent confirmation it's a genuine business set up to do this kind of work, not just a directory entry.
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How long they've really been tradingOperating since at least 2010 (16 years), according to an independent source, not just their own word.
They say, established2008Company registered2010Website online since2014
Good to know
Common questions about J-Tech Systems Limited
Is J-Tech Systems Limited a legitimate business?
J-Tech Systems Limited has 5 independent public reviews, rated 5 out of 5. It is a registered business on Companies House, listed as active, and the public register shows no adverse status (no dissolution, insolvency or strike-off) against it. This is independent public evidence gathered from named public sources (no ads, no paid placement), not a guarantee of workmanship. If anything here is out of date, the business can request a correction.
What do customers say about J-Tech Systems Limited?
J-Tech Systems Limited has 5 public reviews, averaging 5 out of 5. You can read the individual reviews and where each came from in the reviews section above.
How do I know J-Tech Systems Limited's reviews are genuine?
J-Tech Systems Limited's 5 public reviews come from a named public review source, and MyTrustedTraders links every one back to where it was published, so you can open the source and read them yourself rather than trusting a single curated page. MyTrustedTraders brings this public evidence together with no ads and no paid placement: we show where every review came from rather than selling rankings, so you can weigh the evidence for yourself.
Is J-Tech Systems Limited qualified and accredited?
We hold 1 independently sourced credential for J-Tech Systems Limited, including Which? Trusted Traders. Each is attributed to the body that issued it in the credentials section. For example, Which? Trusted Traders is Which? Trusted Trader: an endorsement from the consumer champion Which?, given to traders who pass its assessment process.
Is J-Tech Systems Limited a registered business?
J-TECH SYSTEMS LIMITED is a registered business on Companies House (company number 07393435), incorporated 30 Sept 2010, listed as active. This confirms the legal registration of the business, not evidence of workmanship or service quality.
What does J-Tech Systems Limited specialise in?
J-Tech Systems Limited lists specialist services including Electrical emergency services, Electrical installations, Electrical repairs, Electrical testing services, Fuse boards, Landlord safety certificates. If your job is one of these, look for it in their listed services or ask them to confirm for your project.
When was J-Tech Systems Limited's website registered?
J-Tech Systems Limited's website has been online since 2014, according to the public domain registry. This dates the website, not necessarily when the business began trading.
These describe public evidence MyTrustedTraders held at the stated dates. They are not independent awards, they cannot be bought, and they do not change this business's Trust Score or search position. How milestones are measured
