- Unit 104,111 Power Rd, Chiswick, London
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About Us
We provide 24/7 emergency electrical services across London, delivered by NICEIC-approved and fully certified electricians you can trust. Our team specialises in residential, commercial, and landlord electrical work,
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Electrical Rewiring London
Safe, Professional & Fully Compliant Electrical Rewiring Services
Electrical rewiring is one of the most important upgrades a property can undergo. Leon Electricians provides professional Electrical Rewiring services in London, helping homeowners, landlords, and businesses replace outdated or unsafe wiring with modern, regulation-compliant electrical systems.
Over time, electrical wiring deteriorates, becomes overloaded, or no longer meets modern electrical demands. Many London properties still operate with wiring installed decades ago, long before today’s appliances, heating systems, and technology became standard. Electrical rewiring ensures your property remains safe, reliable, and capable of supporting modern usage.
At Leon Electricians, we deliver full and partial electrical rewiring projects across London, focusing on safety, efficiency, and long-term performance. Every rewiring project is carefully planned, professionally executed, and fully tested to meet current UK electrical regulations.
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Electrical Rewiring London
What Electrical Rewiring in London Covers
Our electrical rewiring services are comprehensive and tailored to suit different property types and usage requirements. We work with homeowners, landlords, and businesses across London to upgrade outdated electrical systems, improve safety, and support modern electrical demands.
Electrical rewiring typically includes full or partial circuit rewiring, replacement of old or damaged cabling, installation of new electrical circuits, upgrades to socket, switch, and lighting wiring, and integration with modern consumer units. All projects include thorough electrical testing and certification. Each rewiring project is customised based on the property’s condition, layout, and electrical requirements to ensure safe, efficient, and compliant results.
Fast emergency response
Outstanding service with a fast emergency response. The electricians were highly professional, explained everything clearly, and completed the work safely and to regulation.
We were impressed by the clear communication from start to finish. The team arrived quickly, handled the issue efficiently, and ensured all work was safe and fully compliant.
Reliable, professional electricians who responded fast in an emergency. Excellent communication throughout and total confidence in the quality and safety of their work
Electrical Rewiring London
When Is Electrical Rewiring Necessary?
Electrical rewiring is often required when existing wiring no longer meets current safety standards or modern usage demands. Many electrical faults and system failures are caused by ageing or inadequate wiring hidden behind walls, floors, and ceilings, which can pose serious safety risks if left unaddressed.
You should consider electrical rewiring in London if your property is over 25–30 years old, the wiring has never been upgraded, fuse boxes or consumer units are outdated, circuits trip frequently, lights flicker or dim, or sockets feel warm or produce burning smells. Rewiring is also recommended if you are renovating, changing how the property is used, or if an electrical inspection report advises rewiring. Additionally, rewiring is strongly advised when purchasing older properties to ensure the electrical system is safe and compliant before occupation.
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Electrical Rewiring London
Risks of Old or Inadequate Wiring
Outdated wiring can pose serious safety hazards and is a common cause of electrical fires, power failures, and electric shock. Many older wiring systems were designed for much lower electrical demand and are no longer suitable for modern appliances and technology.
Common risks include overloaded circuits, deteriorated insulation, unsafe or loose connections, inadequate earthing, and a higher risk of fire or electric shock. Electrical rewiring removes these dangers by installing modern, regulation-compliant wiring systems built to meet today’s safety and performance standards.
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FAQ & Statistics
Discover FAQ From Our Expert Support
Timelines vary depending on property size and scope, but most projects take several days.
Some disruption is unavoidable, but careful planning helps minimise inconvenience.
Full rewiring often requires temporary relocation; partial rewiring may not.
In some cases, rewiring is recommended to meet safety standards.
Yes, all rewiring work includes proper electrical certification.
Electrical Rewiring London
Electrical Rewiring for London Properties
London properties present unique challenges due to their age, structure, and layout. Our electricians have extensive experience rewiring period and heritage properties, flats and apartment buildings, residential homes, as well as commercial and mixed-use buildings.
We tailor our approach to suit each property’s construction, access limitations, and electrical requirements, while maintaining strict safety standards and full compliance with current UK regulations.
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Trusted by Customers
Arima Leonardo
Electrician
Alex Piter
Designer
Electrical Rewiring Process
Step 01 
Initial Electrical Assessment
Step 02
Rewiring Plan & Design
Step 03
Safe Isolation & Preparation
Step 04
Installation of New Wiring
Step 05
Testing & Certification
