Electrical testing and certification for UK electricians 2026

Why electrical testing is a growing part of the trade

Electrical testing has gone from a niche specialism to a core part of most UK electricians' workload. Landlord EICRs, new build sign-off, and insurance requirements are all driving demand. In England, landlords have been legally required to have private rental properties tested every 5 years since 2020. Scotland introduced similar requirements in 2015. Wales followed in 2023.

That is a huge number of rented properties cycling through inspection requirements every 5 years. Add in commercial buildings, industrial units, and the testing work generated by Part P notification requirements on domestic work, and electrical testing represents a reliable, recurring income stream for any electrician who gets set up properly.

The key electrical certificates explained

Electrical Installation Condition Report (EICR)

The EICR is the main inspection and testing certificate for existing installations. It replaces the old Periodic Inspection Report (PIR). An EICR assesses the condition of a fixed electrical installation against BS 7671 (the IET Wiring Regulations), identifies any defects, deterioration, or non-compliant work, and gives each item a code: C1 (danger present, immediate action required), C2 (potentially dangerous), C3 (improvement recommended), or FI (further investigation required).

For landlords, an EICR with no C1 or C2 codes (or with them remedied) is required before a new tenancy begins or at the 5-year renewal point. The report must be provided to tenants within 28 days.

Electrical Installation Certificate (EIC)

An EIC is issued for new installations or significant alterations to existing ones. It confirms the new work complies with BS 7671 at the time of completion. For notifiable work under Part P of the Building Regulations, either the work is self-certified by a registered competent person (such as a NICEIC or ELECSA registered electrician) or it must be notified to Building Control. An EIC consists of a design declaration, a construction declaration, and an inspection and test results section. It can only be signed by a qualified person.

Minor Works Certificate (MWC)

An MWC is used for small additions or alterations to existing circuits — adding a socket, changing a light fitting, or extending a circuit. It does not require the full inspection and test records of an EIC. It confirms the minor work is safe and compliant. An MWC is not appropriate for new circuits or consumer unit replacements.

Qualifications needed

To carry out EICR testing and sign off certificates legally, you need:

• A relevant electrical qualification — typically City and Guilds 2391 (Inspection, Testing and Certification of Electrical Installations), or the equivalent 2395 qualification
• Membership of a competent person scheme such as NICEIC, NAPIT, or ELECSA — this allows self-certification under Part P
• Up-to-date knowledge of BS 7671 (18th Edition, Amendment 2, in force from 2022)

The 2391 course typically takes 5 to 8 days and costs £400 to £800 depending on the training provider. If you are already qualified as an electrician (C&G 2365 or equivalent) and have proven practical experience, the 2391 is the logical next step.

Pricing EICR and testing work

EICR pricing depends on the property size and number of circuits. Typical 2026 benchmarks:

• 1-2 bedroom flat (up to 8 circuits): £120 to £200
• 3-4 bedroom house (10-16 circuits): £180 to £280
• 5+ bedroom or large property: £250 to £400+
• Commercial unit (small): £200 to £500 depending on size and complexity

Remedial work arising from a C1 or C2 is a separate quote. This is good business — you identify the problem and you are well-placed to quote for fixing it. Some electricians offer a combined EICR plus remedials package to landlords, which makes the process simpler for the client and gives you a higher average job value.

Software and record keeping

Good record keeping is essential for electrical testing work. You need to retain copies of all certificates issued, test results, and any photographs of defects. HMRC requires you to keep business records for 5 years as a self-employed person. Industry guidance recommends keeping EICR records for the life of the installation. Use InvoiceAdept to invoice for testing work and keep your business records MTD-ready. For the certificates themselves, NICEIC, NAPIT, and ELECSA all provide certificate management platforms as part of membership.