Written by Mark Reid,
Trades Editor ·Verified 10 October 2026
London's housing stock throws up challenges that electricians elsewhere rarely encounter. Victorian terraces across Hackney, Islington, and Battersea often still have original wiring runs buried in lath-and-plaster walls, and older properties throughout zones two and three regularly turn up deteriorating rubber-insulated cables that need full rewires rather than quick fixes. Newer builds in Nine Elms, Stratford, and Wembley Park bring their own headaches, with shared riser cupboards, communal metering arrangements, and building management systems that need co-ordination before any domestic work can start. Add in the sheer density of the city and the fact that many Londoners live in converted flats where circuits are shared across multiple dwellings, and it's clear that finding an electrician who actually knows the local building types makes a real difference. Expect to pay roughly £50 to £80 per hour for a qualified electrician in inner London, with consumer unit replacements typically running £400 to £700 and a full rewire of a three-bedroom Victorian terrace often coming in between £3,500 and £6,000 depending on access and the state of the existing installation.
The businesses listed on this page are drawn from third-party public business listings and ranked primarily by public review rating and review count, with a small additional lift for those that have a working website and a contactable phone number. Before any business appears here, we check its homepage to confirm that electrical work is what it primarily offers, which is how unrelated trades or general handymen get filtered out. Listings flagged as permanently closed are removed automatically. Where you see a Trust Verified badge next to a business, that company has gone further and passed our full independent verification process, which covers trade qualifications and accreditations, public liability insurance, trading history, customer review history, and registered company information. You can see the complete list of what that involves on our How We Verify page. Businesses that don't carry that badge have not been independently verified by us, and it's worth keeping that in mind when you're comparing your options.
Before you book any electrician, ask to see their NICEIC, NAPIT, or ELECSA registration, all of which confirm they're a competent person able to self-certify notifiable electrical work and issue an Electrical Installation Certificate without the need for a separate building control sign-off. For larger jobs like a full rewire or a new consumer unit, always get at least three written quotes and make sure each one specifies the same scope of work, because vague quotes make meaningful price comparisons impossible. Check that whoever you hire holds adequate public liability insurance before they start, and once the job is done, make sure you receive an Electrical Installation Certificate or, for a periodic inspection, an Electrical Installation Condition Report. These documents matter if you sell the property or make an insurance claim further down the line.
How We Select & Rate The Best Electricians in London
Rankings on this page are driven by public review rating and review count pulled from third-party business listings, with a small lift applied to businesses that have a working website and phone number. We check each business's homepage to confirm electrical work is what they primarily offer, keeping unrelated trades off the page. Permanently-closed listings are removed automatically. Businesses displaying a Trust Verified badge have additionally passed our full verification, covering qualifications, accreditations, public liability insurance, trading history, customer review history, and registered company information. See our How We Verify page for the complete list. All other businesses on this page have not been independently verified by us, and inclusion is not an endorsement. Always carry out your own checks before hiring.
Recommended and Featured listings are paid placements, so a business's fee affects whether and where it appears. Every other listing is ranked on rating and review count from third-party business listings. How we rank & verify →
Al-Amin Electrical Contractor provides professional electrical services across London. Their electrical services cater to both residential and commercial clients throughout the capital.
TNS Electrical Solutions provides professional electrical services across London. They handle residential and commercial electrical work throughout the capital. Their experienced electricians offer reliable solutions for installations, repairs, and maintenance projects across all London boroughs.
BESA Electrical Services LTD provides professional electrical services across London, taking on residential and commercial electrical work. Their qualified electricians handle installations, repairs, and maintenance throughout the capital.
Certified Electricians London Ltd provides professional electrical services throughout London from their base in Canary Wharf. The company maintains an outstanding 5-star rating from 312 verified Google reviews, reflecting their commitment to quality workmanship and customer satisfaction. Their certified electricians handle residential and commercial electrical installations, repairs, and maintenance across the capital.
Electrical Solutions 247 Ltd provides comprehensive electrical services across London, covering both domestic and commercial electrical work. Their qualified electricians handle installations, repairs, and maintenance throughout the capital.
Contact Electrician is an electrical firm in Croydon covering the domestic and small commercial work the trade typically involves, from fault finding and rewiring to fittings and safety checks. Based in south London, it serves local households and small premises across the borough and nearby neighbourhoods.
In Croydon and the surrounding south London area, Sowe's Electrical Engineering Services works as a local electrician for domestic and small commercial jobs. Enquiries can be made through its website, which is built around the London area it covers.
Consumer unit upgrades and fault-finding make up much of BM Sparks' workload across Bromley, alongside rewiring for older properties in need of modernisation. The firm covers domestic and small commercial jobs throughout the surrounding area.
RNH Electrical Limited is an electrical contractor based in Bromley, covering domestic and commercial work across the local area. Its website outlines the scope of work undertaken, from installation to inspection.
Peter Whiting Electrical Contractors Limited is an electrician serving Bromley and the surrounding area. Operating as a limited company, the firm carries out domestic and commercial electrical work to a professional standard. With a dedicated web presence at peterwhitingelectricalcontractors.co.uk, clients can find further detail on the services available before making contact.
Quantum Electricians & Plumbers provides electrical services across London from their base in Kensington. They serve residential and commercial clients throughout the capital with professional electrical installations, repairs, and maintenance work.
Consumer unit upgrades and electrical rewiring are among the domestic jobs handled by D & T Electrical Services, a firm of electricians working across Romford and the wider Havering area. The business also carries out fault finding and general installation work for local households.
Families across Bromley call on SMK Electrical Services for rewiring, fault finding and general household electrical work. Jobs are carried out with attention to safety standards expected in domestic properties, from small repairs to larger installations.
Consumer unit replacements and full house rewires are the core of the work at MN Electrical, an electrician based in Romford. The business also covers fault finding, extra sockets and lighting installations for domestic customers across the area.
Kadrien Electrical Ltd provides comprehensive electrical services across London. They serve both residential and commercial clients throughout the capital with a full range of electrical installations, repairs, and maintenance work.
JBS Electrics Ltd covers domestic and commercial electrical work across London and is well placed for East London and Docklands properties. From full rewires to consumer unit upgrades, the firm handles projects across both residential and business premises. The company maintains an active web presence through jbselectrics.co.uk.
Consumer unit upgrades, rewiring and fault finding make up the core of the work at Route Electrical Ltd, an electrician serving Orpington and the surrounding area. The firm takes on domestic jobs from replacing a fuse board to rewiring a whole property.
In Romford and the surrounding parts of east London, OW London Electricians & Home Automation covers domestic electrical work alongside smart home installation. The business pairs routine jobs such as rewiring and fault finding with home automation, which suits households wanting lighting, heating or security controlled from one system.
Emergency electrical work in Sutton and surrounding areas is the focus of Kojo Electrics Ltd, covering faults and breakdowns that can't wait for a scheduled slot. Sutton residents dealing with power loss or wiring faults can call on out-of-hours cover.
Lloyd Hallowell Electrics provides professional electrical services throughout London, operating from their base in Bow. Their qualified electricians handle a comprehensive range of domestic and commercial electrical work across the capital.
Consumer unit replacements and full rewires are among the domestic jobs undertaken by Mek Electrical Services LTD, a Croydon electrician working across the town and nearby neighbourhoods. The business also covers general electrical repairs, fault finding and testing for homes and small commercial premises.
Sutton and the surrounding area are served by Carshalton Electrical Services Ltd, covering domestic and commercial electrical work. Jobs range from rewiring to fault finding, carried out for households and businesses alike.
Fuse board upgrades, rewiring and electrical safety testing are the core work at AA Electrical Services, an Orpington electrician serving the surrounding Kent and south-east London borders. The business takes on both domestic jobs and smaller commercial installations.
Much of Lumiel Electrical's work in Sutton involves older terraced houses needing rewiring or consumer unit upgrades, alongside smaller jobs for flats and extensions. Jobs are quoted and carried out with attention to the quirks that period wiring often presents.
Hale Electrics Limited is an electrical contractor serving Orpington. The company carries out domestic and commercial electrical work, covering installation, maintenance and fault-finding.
Transparency notice: Recommended and Featured listings are paid placements, so a business's fee affects whether and where it appears. All other listings are ranked by a combined score drawn from ratings and review counts published on third-party business listings, plus basic completeness signals such as a working website and phone. A Trust Verified badge means we have independently checked that business's documents; businesses without it have not been independently verified by us. How we verify →
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Hourly rates typically range from £40-80, with experienced contractors charging £60-80 per hour. Call-out fees add £30-60. Simple jobs like socket installation cost £80-150, whilst consumer unit replacements run £300-800. Full house rewires vary dramatically: £3,000-6,000 for a two-bed terrace, £8,000-15,000 for larger properties. Location affects pricing, with central London commanding premium rates. Always get two or three written quotes for comparison.
Do I need Part P certification for electrical work in London?
Part P applies to notifiable electrical work including new circuits, bathroom electrics, and consumer unit changes. Your electrician must be registered with an approved scheme like NICEIC, NAPIT, or STROMA to self-certify this work. Without proper certification, you'll need separate building control approval, adding cost and complexity. Always check your contractor's registration before starting notifiable work.
How long does rewiring a London house take?
A typical two-bedroom terrace takes 3-5 days with minimal disruption methods, whilst full strip-out rewires need 5-8 days. Three-bedroom houses require 5-10 days depending on access and complexity. Victorian properties with solid walls take longer than modern builds. Partial rewires for kitchen or bathroom renovations usually complete within 1-3 days. Factor in extra time for plastering repairs and redecorating afterwards.
Can electricians work on listed buildings in London?
Yes, but they'll need conservation area or listed building consent for visible external changes like new cable routes or meter positions. Internal rewiring rarely needs permission if it doesn't affect historic fabric. Experienced contractors understand requirements for concealed wiring in period properties. Check with your local council's conservation officer for complex projects involving structural alterations or external modifications.
What electrical problems are common in London properties?
Older properties often have outdated fuse boxes needing consumer unit upgrades. Victorian houses frequently lack sufficient sockets for modern needs. Shared freehold buildings may have complex supply arrangements requiring specialist knowledge. Basement conversions need proper earthing systems. Smart home installations require neutral wires that older properties sometimes lack. Rising damp can affect ground floor electrics in period buildings.
How do I verify an electrician's credentials and reliability?
Check their NICEIC, NAPIT, or STROMA registration online using their membership number. Verify public liability insurance (minimum £2 million cover). Request three recent references and actually contact them. Check Companies House for trading history and financial health. Look for consistent positive Google reviews over time. Ask to see their qualification certificates and ensure they're qualified for your specific work type.
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