Electrical Services in London: When Compliance Is Not Optional and Safety Is Not Negotiable

Electrical work in a UK residential property is notifiable under Part P of the Building Regulations. This means that most electrical installation work in a home must either be carried out by a Part P registered electrician, or notified to and inspected by Building Control if done by an unregistered person. The reason is straightforward: defective electrical installations kill people. A consumer unit without RCD protection, rubber-insulated wiring from the 1960s, or an unauthorised extension that exceeds the cable's rated capacity are fire and electrocution hazards.

Get a Free Quote 07864 384818

NICEIC

Certified electricians carrying out all notifiable electrical work to Part P

15+

Years delivering electrical work across West London renovation projects

2,000+

Completed projects since 2011 from 170 Kings Avenue, Greenford, UB6 9DF

5-Year

Guarantee on all electrical installation work under our JCT contract

Warning Signs

Signs That Your Electrical Installation Needs Professional Assessment

Rubber or Fabric Cable

Properties built before approximately 1966 may retain original rubber or fabric-insulated wiring. Rubber insulation degrades over time and becomes brittle. The presence of rubber or fabric cable is the strongest single indicator that a full rewire is needed.

Old Consumer Unit

A consumer unit with rewirable fuses rather than circuit breakers, or without RCD protection on socket circuits, does not meet current 18th Edition wiring regulations. RCD protection detects earth faults and disconnects the circuit before a person receives a dangerous electric shock.

Unsatisfactory EICR

An EICR with three or more C2 observations across multiple circuits, or any C1 observation, is a strong indicator that targeted remediation or a full rewire is appropriate. Always commission an EICR before deciding whether a full rewire is needed.

Renovation Work

If a property is undergoing renovation where walls and floors are being opened, the electrical installation should be assessed and upgraded as part of the programme. Rewiring during a renovation is significantly cheaper because cable routes are accessible without replastering.

Our Services

Our Electrical Services

EICR Inspection

Periodic inspection and testing of a property's electrical installation. Required every 5 years for landlords, every 10 years for homeowners.

Full House Rewire

Replaces every cable, socket, switch, light fitting, and consumer unit in the property. Required where wiring uses rubber insulation.

Consumer Unit Upgrade

Replaces old fuseboard with a modern 18th Edition compliant unit with RCBO or RCD protection. Most common remedial action.

First and Second Fix

All cable routes, back boxes, and consumer unit positioning before walls are closed. Second fix covers sockets, switches, and light fittings.

EV Charger Installation

Dedicated 7kW electric vehicle charging point with smart charger device. Requires dedicated 32-amp circuit from consumer unit.

Smoke and CO Detection

Mains-powered interlinked smoke alarms at each floor level and carbon monoxide alarms to Approved Document J and B standards.

Regulations

Part P Building Regulations and NICEIC: What They Mean for Your Project

Part P Explained

Part P of the Building Regulations governs electrical installation work in dwellings in England. It requires that notifiable electrical work is either carried out by a Part P registered electrician who self-certifies the work, or notified to Building Control for inspection. Work carried out by a NICEIC registered electrician does not need separate notification.

18th Edition Amendment 3

The 18th Edition of the IET Wiring Regulations (BS 7671:2018+A3:2024) governs all electrical installation work in the UK. Amendment 3, effective September 2024, introduced updated requirements for consumer unit protection, EV charging, and energy storage. All our work complies with Amendment 3 requirements.

2026 Pricing

Electrical Service Costs in London: 2026 Figures

Tier	Scope	Cost Range
EICR Inspection	Standard domestic property	£150 - £350
Consumer Unit Upgrade	Standard domestic installation	£450 - £950
Partial Rewire	Targeted circuits	£1,200 - £3,500

Full Rewire by Property Size

Tier	Scope	Cost Range
1-Bedroom Flat	Full rewire including consumer unit	£2,800 - £5,500
2-Bedroom Flat	Full rewire including consumer unit	£3,200 - £6,500
3-Bedroom House	Full rewire including consumer unit	£4,500 - £9,000
4-Bedroom House	Full rewire including consumer unit	£6,500 - £12,000+

Occupied property rewire: 15% more expensive than vacant due to access and daily clearing requirements.

Book an Electrical Survey

We assess the existing electrical installation and provide a detailed written quote for the appropriate scope of work.

Book Your Free Survey

How We Work

How Jaspal Constructions Delivers Electrical Work

Step 1 - Survey and EICR Recommendation

For new renovation projects, we carry out a site survey that includes an assessment of the existing electrical installation and confirmation of whether a full rewire, partial rewire, or consumer unit upgrade is appropriate. We recommend an EICR as the first step on any older property.

Step 2 - Specification and Scope

We confirm the electrical scope in writing before work begins: which circuits are being replaced or added, the consumer unit specification, the socket and switch specification, and the lighting design. For renovation projects, the first fix scope is coordinated with the programme.

Step 3 - First Fix

Cable routes are installed, back boxes are set, and the consumer unit is positioned before plastering. Building Control stage inspection is coordinated at first fix stage on renovation projects under a Full Plans Application.

Step 4 - Second Fix and Testing

After plastering and decoration, sockets, switches, and light fittings are fitted. All circuits are tested to BS 7671 18th Edition Amendment 3 requirements. The Electrical Installation Certificate is issued. Part P self-certification is completed.

Step 5 - Handover

Electrical Installation Certificate, Part P notification, and all circuit information is included in the handover pack. EICR is issued separately where a condition report is the deliverable. All notifiable work is registered with Building Control through NICEIC self-certification.

Step 1 - Survey and EICR Recommendation

Step 2 - Specification and Scope

Step 3 - First Fix

Step 4 - Second Fix and Testing

Step 5 - Handover

Related Services

Full House Renovation

Electrical first and second fix as a key phase within a full property renovation.

House Extensions

Extension wiring, new circuits, and consumer unit assessment for additional load.

Kitchen Renovation

Kitchen circuit upgrade, under-cabinet lighting, appliance connection, and Part P.

Plumbing and Heating

Electrical and heating first fix coordinated to avoid conflicts in wall and ceiling voids.

Flooring

Underfloor heating wiring installed during first fix before screed is poured.

New Build Construction

Full new build electrical from groundworks to completion certificate.

FAQ

Electrical Services: Frequently Asked Questions

A full rewire of a 3-bedroom house in London costs £4,500 to £9,000 in 2026 depending on property size, number of circuits, and whether the property is occupied. A 1-bedroom flat costs £2,800 to £5,500 and a 4-bedroom house costs £6,500 to £12,000+. Occupying the property during the rewire adds approximately 15 percent to the cost.

Book a Free Electrical Survey

There is no charge for the survey and no obligation to proceed. Most survey appointments are available within 5 to 7 working days.

Book Your Free Survey Call Us Now