Certified Electricians London Ltd was established in 2014. David Smallwood its Director and electrician could see that there was a serious lack of professional electricians and businesses that were serving home and business owners. Some of the poor workmanship and electrical hazards he had witnessed in his near 20 years of experience seemed like it had only gotten worse. Unqualified electricians working in the U.K has become a bigger and bigger problem. Contractors falsely claiming to be NICEIC regulated is more common than ever and unskilled builders installing electrics as part of their ‘service’ has become more commonplace. Sadly customers are all to often finding themselves to their surprise, that they have been left with unsafe homes or businesses that they had thought complied with U.K Building Regulations not insured for purpose. This has proved costly when the worst arrived or when trying to sell.

In the last few years David has made serious progress in establishing Certified Electricians London Ltd as a business that can be trusted to provide the level of safety and service you should rightly expect. We prefer to sleep well at night. We only employ the highest skilled electricians that are all NICEIC registered.
 All works are insured, notified promptly to local building control authorities and certification is provided to all who requires it.
All our electricians are CRB checked, arrive in company uniform, are always polite and well mannered and will take the best possible measures to leave your premises as clean and tidy as possible.

We realised that unless we could provide a service that was always honest, trustworthy and as clear on pricing and time-scales for work as possible we wouldn’t last five minutes. Our customers are never an after thought we prefer to try to keep you for a lifetime. This philosophy has served us well so far and we don’t intend on changing it.

Should you be an homeowner, business or landlord we can provide for all of your electrical installation/maintenance requirements. Please see our related Household and Business/Landlord Services pages for a full list of these. We cover the whole of the Greater London area and the boundary within the M25.

If you require further information please get in touch on 0203 667 7195 or alternatively send us an enquiry on our enquiry/quick quote form

All The Best

Matt Baker
Matt Baker
2023-10-03
Fitted power and internet to my outbuilding. Helped plan out the job and the best approach
Sameer Shrestha (SamIR)
Sameer Shrestha (SamIR)
2023-09-27
I recently had a hanging pendent ligts over the dining area. Spoke with David over the phone and he suggested us to go with wireless switch for our hanging pendent light. This surely saved us from opening up the walls for sorting out wires. On the day, Marlow came over to install the light and I'm very happy with the work he did. Very friendly and genuine guy. Would definetly come back for future electrical works if needed.
Alice Till-Carty
Alice Till-Carty
2023-09-21
We have been using David and his team for a few years now. They are always reliable, well priced, professional and kind! They are our go to electricians now and it’s for good reason. Thanks as always David, Marlowe and team!
Nanxi Zhang
Nanxi Zhang
2023-09-18
David and Marlowe are the best electricians I’ve ever had. Here’s why:They simply care: They replied to my emergency message immediately, even though it was late at night.Extremely professional: I was slightly panicked when my old electric shower stopped working, fearing major issues like cable damage under the flooring. Here's what they did to solve the problem: 1. They diagnosed the issue, causing minimal damage to my bathroom furnishings. 2. Even though the root cause turned out to be the worst case—cable damage under the floor—they managed to fix it smartly by rewiring from the other side of the wall. This saved me tons of money by avoiding hiring a builder to redo the flooring, and fixed the problem without needing to worry about the old underfloor cable forever!Highly efficient: The diagnosis and fix both happened within 2 hours.Respectful: They cleaned up the mess left by the work as much as possible.Fair and transparent pricing: David makes sure I know the price before the work is carried out. Very fair price comparatively. No hidden fees, no unwanted surprises.
Jenner Hammond
Jenner Hammond
2023-09-15
Totally reliable, super professional, quick and efficient. Have used a few times and always delighted with service - really nice guys to deal with.
Luke Tchalenko
Luke Tchalenko
2023-09-14
David and his team have in the last few weeks repaired flood damage to a lighting circuit, conducted a full house survey, installed a new consumer unit and an EV charger. They've been brilliant: friendly, tidy, professional and competitive. Highly recommended.
duncan crane
duncan crane
2023-09-11
We couldn't of gad s better electrian to carry out the work needed on our new extension. I would highly recommend his services.
Gill Heathcote
Gill Heathcote
2023-09-03
Really pleased with the service . Arrived on time and the work was done quickly. Very helpful and I will definately use this company again in the future for all my electrical work.
Fiona V
Fiona V
2023-08-22
Very happy to recommend this firm. I had an issue late at night and they were quick to respond and confirm an appointment for the next day. Marlowe and Jamie did a great job, were tidy and helpful in explaining what was done. Good overall customer service throughout
Kārlis Siders
Kārlis Siders
2023-08-16
Called David with an emergency as none of the electricity in my flat was working (no fridge/freezer, no WiFi). He immediately responded and was very patient with me and my spotty reception, managing to find the issue really quickly and restore the electricity, following up with advice for how to continue. Really professional, and seriously helpful.
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If you would like a quote for particular works or would just like to make a general enquiry please fill in our form with the details. We endeavour to get back to you as soon as we can to assist you. We take pride in our clear pricing policy so that there is no hidden charges to you.
No Call Out Charges
Fully Insured
NICEIC Regulated
CRB Checked
Polite and professional
Certificates provided promptly
Highly qualified
Clean and tidy
Honest and clear

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Book Electrical Services Now
November 27, 2023
Making Properties in London Safer Places!

Last week was a whirlwind for the team at Certified Electricians London, your trusted local electrical experts. We're proud to have upgraded 6 properties with new fuseboards, enhancing their safety. We were also busy modernising spaces: 🔥 Replacing outdated storage heaters with sleek, modern Wi-Fi heaters. 🍳 Updating a kitchen with a brand-new cooker hood […]

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November 19, 2023
Enhancing Comfort and Efficiency at a National Food Hub!

We have recently completed a great project at a national food distribution centre. We Installed new circuitry and fitted cosy heaters with timer controls for the hardworking staff at the centre. David still needs training on how to put on a hair net but rest assured if you use Certified Electricians London there will be […]

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November 13, 2023
Complete Kitchen Refurbishment

Another successful week for your trusted local electricians! We completed a lovely kitchen refurbishment for one of our wonderful customers on the Isle of Dogs. Don't gamble with unskilled or unregistered general builders—choose expertise and reliability. Get your electrics done right the first time! Contact us today for advice or a free quotation. T:  07951 […]

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