The two schemes in one paragraph
NICEIC is operated by Certsure LLP (a joint venture between the Electrical Safety Council charity and ECA, the trade body). NAPIT is operated by NAPIT Registration Ltd, an independent registration body covering electrical, plumbing, heating, ventilation and microgeneration. Both are UKAS-accredited Part P competent person schemes recognised under the Building Regulations.
In practical terms an electrician registered with either can self-certify notifiable domestic electrical work, issue BS 7671 certificates, and produce EICRs that local authorities will accept for landlord and HMO licensing. The work scope and certificate validity are identical.
Where they overlap (almost everything)
Both schemes assess contractors against the same technical standard: BS 7671:2018 + A4:2026, IET Guidance Note 3 for inspection and testing, and Building Regulations Part P. Both require an annual on-site assessment by a scheme inspector who reviews recent installation work, equipment calibration certificates, and the qualifying supervisor's competence.
Both schemes carry warranty backing. NICEIC offers the Platinum Promise (six-year work warranty on notified domestic work). NAPIT offers the NAPIT Insurance Backed Guarantee (similarly six years). Both provide complaints handling and an arbitration route if a customer dispute escalates.
For an EICR specifically, the certificate template is the BS 7671 Model Form 4 in both schemes — same fields, same coding (C1/C2/C3/FI), same legal weight. A council reviewing a landlord licence application will not prefer one scheme stamp over the other.
Where they differ in practice
NICEIC has stronger consumer recognition. The brand is older (founded 1956), and Trading Standards and most home insurers default to mentioning NICEIC in guidance. The NICEIC public-find-a-contractor search returns roughly 26,000 registered businesses; NAPIT around 16,500. For a homeowner Googling "find an electrician", NICEIC visibility is higher.
NAPIT covers a broader scope of trades under one registration — electrical, plumbing, gas, heating, microgeneration. A multi-discipline firm running a single NAPIT membership pays one set of fees rather than juggling NICEIC plus Gas Safe plus MCS. This is why heating contractors fitting EV chargers and heat pumps gravitate toward NAPIT.
NICEIC distinguishes between "Approved Contractor" (full enterprise registration, audited business management) and "Domestic Installer" (notifiable domestic work only). NAPIT structures membership similarly but uses different labels. The Approved Contractor tier is the one commercial clients and large letting agencies typically demand.
What to ask before hiring (either scheme)
Are you the named Qualifying Supervisor on the registration, or working under someone else's? A scheme certificate covers the registered business; the actual on-site engineer must work under the named QS. If the QS is not the person attending, ask who supervises the work.
What is your registration number and the registered business name? Both should be provided in writing on the quote. Cross-check against the public register before the visit.
Can you produce calibration certificates for your test equipment? Insulation resistance testers and loop testers must be calibrated annually. An EICR signed using out-of-calibration equipment is challengeable.
What is the JIB Gold Card status of the attending engineer? The JIB Gold Card is the industry standard for individual competence (separate from scheme registration which covers the business). For commercial sites it is increasingly a tender requirement.
How to verify a contractor online
NICEIC: visit niceic.com and use "Find a Contractor". Enter the registration number or business name. The result page shows current registration status, scope of registration (Approved Contractor, Domestic Installer, etc.), and any recent suspensions. Print or screenshot before the visit.
NAPIT: visit napit.org.uk and use "Find an Installer". The verification page returns scheme membership status, trade categories covered, and the warranty position. NAPIT also lists business address and director details, useful for cross-checking against Companies House.
Red flags during verification: registration number does not match the business name on the quote, scheme registered to a different address, scope of registration does not cover the work being quoted, or the membership shows "suspended" or "lapsed".
When the scheme actually matters most
For landlord EICRs in HMO and selective licensing boroughs (Newham, Hackney, Tower Hamlets, Waltham Forest, Croydon) the council checks the inspector against the scheme register. Either NICEIC or NAPIT registration is accepted. ELECSA (now under NICEIC) and Stroma (now part of NAPIT) are also accepted under their original branding for older certificates.
For insurance claims involving electrical fire or shock incidents, insurers want evidence the installer was scheme-registered at the date of the work. The scheme register holds historic registration data, so even if a contractor has since left the trade, the original work remains verifiable.
For commercial fit-outs in central London the lease frequently names NICEIC Approved Contractor status as the minimum competence for any electrical works. NAPIT registration is sometimes accepted on a case-by-case basis but is more frequently challenged at building-control sign-off.
Author byline
James Whitfield, Director & Qualifying Supervisor
NICEIC Approved Qualifying Supervisor, JIB Gold Card Electrician, 10+ years industry experience. Personally reviews every certificate and article published under Electrician London.
Related services
Ready to book?
Same-day NICEIC certificates across every London postcode. Director-led, no call-centre.
Call 020 3633 5557