How to Choose an Electrician in London — The Complete Guide

The most reliable directory for electricians is the NICEIC's "Find a Contractor" tool at niceic.com. NICEIC is the largest competent persons scheme for electricians in the UK, and members are assessed annually. NAPIT (the National Association of Professional Inspectors and Testers) runs a similar scheme. Electrical Safety First's "Find a Registered Electrician" tool is also useful. For specialist work — EV chargers, smart home systems, commercial kitchen electrics — look for contractors who specifically advertise that expertise. General trade platforms (Checkatrade, Rated People) are options but treat them as a starting point for research, not a substitute for verifying qualifications.

Part P of the Building Regulations governs electrical work in dwellings. Certain work is "notifiable" — it must either be carried out by a registered competent person (who self-certifies) or inspected and approved by Building Control. Notifiable work includes: new circuits, consumer unit changes, work in bathrooms and kitchens near sinks and baths, outdoor circuits, and work near swimming pools. Non-notifiable work — like-for-like socket and switch replacements, adding a fused spur to an existing circuit — can legally be done by a competent DIYer. Competent persons schemes (NICEIC, NAPIT, ELECSA, STROMA, BRE, TrustMark) allow registered electricians to self-certify. To verify registration, search for the company or individual on the relevant scheme's website.

Three main certificates matter: the Electrical Installation Certificate (EIC), issued on completion of new electrical installations; the Minor Works Certificate, issued for additions or alterations to existing circuits; and the Electrical Installation Condition Report (EICR), which assesses the safety and condition of existing wiring. For notifiable work, the EIC or Minor Works Certificate is issued by the registered electrician and registered with the relevant competent persons scheme. You receive a copy, and your local council receives notification. These certificates are essential when selling your property and for insurance purposes. An EICR is required every 5 years for rental properties.

A well-written electrical quote specifies: exact scope of work (circuits, accessories, consumer unit brand and spec), materials with brand names (Hager, MK, Schneider for consumer units; MK, Legrand, Schneider for accessories), certificates to be issued, making good (will they fill and make good wall chases), waste removal, and whether VAT is included. The most common way quotes differ is in the specification of materials and the scope of making good. An electrician who uses Hager consumer units and includes full making good is not comparable with one using an unbranded unit and leaving you to arrange plastering — even if the labour cost is similar. Ask each contractor to specify everything.

EV charger installation requires OZEV (Office for Zero Emission Vehicles) approved installer status to qualify for the OZEV grant. Verify this on the OZEV website before committing. Smart home wiring (KNX, Control4, Lutron) requires additional training and experience beyond standard electrical qualification. Garden and outdoor lighting involves specific cable types and RCD protection requirements. Solar PV installation requires MCS (Microgeneration Certification Scheme) registration to access feed-in tariffs and export payments. For any of these, look for contractors who specifically advertise the relevant specialism and verify the additional accreditation.

An unregistered electrician doing notifiable work puts you in a difficult position — the work cannot be self-certified, and you may face an Ofgem or council requirement to have it retrospectively inspected or removed. Not providing certificates after completing notifiable work is a red flag — the certificates are a legal requirement of the scheme. An electrician who does not test on completion is cutting corners dangerously. Cash-only work with no invoice is unusual for a legitimate registered electrician who needs to log their work with their scheme. An electrician who works without isolating the circuit is a serious safety risk.

Every electrician on our team is verified for Part P registration, fully insured, and experienced with NW London properties. We particularly check experience with Victorian and Edwardian wiring — the most common and most complex situation in our area. We follow up after every job and are your first call if certificates are not delivered or work is not right.