UK Electrical Certificates: EIC, EICR and Minor Works

Which Electrical Certificate Do You Need?

Electrical certificates cause confusion across the trade. Builders get asked for them by clients, landlords need them for tenants, and even some electricians mix up which form to use. Here's a plain-English breakdown of every electrical certificate type in use in England and Wales, when you need each one, and who can issue them.

The Four Main Certificate Types

1. Electrical Installation Certificate (EIC)

What it is: The full certificate issued when a new electrical installation or a major alteration/addition to an existing installation is completed.

When you need one:

• New-build properties (full rewire)
• Full rewires of existing properties
• New consumer unit (fuse board) installations
• Adding a new circuit — e.g., cooker circuit, EV charger, garden office supply
• Any work that's notifiable under Part P of the Building Regulations

What it includes:

• Details of the installation and the designer, installer, and inspector
• Schedule of test results for every circuit
• Schedule of inspections covering all relevant items from BS 7671
• A declaration that the work complies with BS 7671 (the Wiring Regulations)

Who can issue one: A qualified electrician, ideally registered with a competent person scheme (NICEIC, NAPIT, ELECSA, etc.). If the electrician is not registered with a scheme, the work must be notified to Building Control separately.

How long it lasts: It doesn't expire as such — it's a record of the installation at the time of completion. However, the EIC will recommend a date for the first periodic inspection (typically 5 or 10 years).

2. Electrical Installation Condition Report (EICR)

What it is: A report on the condition of an existing electrical installation. It's not a certificate of compliance — it's a health check that identifies any defects, damage, deterioration, or non-compliance.

When you need one:

• When buying or selling a property (recommended, not legally required for homeowners)
• Mandatory for landlords — every 5 years or at each change of tenancy (since April 2021 under the Electrical Safety Standards in the Private Rented Sector Regulations 2020)
• When taking on a commercial lease
• Before starting major refurbishment work (so you know what you're working with)
• Insurance or mortgage requirements

What it includes:

• Observations coded by severity:
  • C1 — Danger present. Risk of injury. Immediate remedial action required.
  • C2 — Potentially dangerous. Urgent remedial action required.
  • C3 — Improvement recommended. Not immediately dangerous but falls short of current standards.
  • FI — Further investigation required.
• An overall assessment of Satisfactory or Unsatisfactory
• Schedule of circuit test results

Who can issue one: A qualified and competent electrician. For landlord EICRs, the regulations specify the inspector must be "a qualified and competent person" — in practice, this means someone registered with a competent person scheme.

How long it lasts: Valid for up to 5 years, though the inspector can recommend a shorter interval if the installation is in poor condition.

3. Minor Electrical Installation Works Certificate (MEIWC)

What it is: A simplified certificate for small jobs that don't warrant a full EIC.

When you need one:

• Adding a socket to an existing circuit
• Adding a light fitting to an existing circuit
• Replacing a consumer unit (some schemes require a full EIC for this — check with your registration body)
• Like-for-like replacement of a fused spur, switch, or socket (not technically required but considered best practice)

What it includes:

• Description of the minor works carried out
• Essential test results (earth continuity, insulation resistance, polarity, earth fault loop impedance, RCD operation)
• Declaration of compliance with BS 7671

Who can issue one: The electrician who carried out the work.

Key point: Minor works certificates are only valid for additions or alterations to existing circuits that are not notifiable under Part P. If the work is notifiable, you need a full EIC.

4. Part P Building Regulations Notification

What it is: Not a certificate itself, but a notification process. When notifiable electrical work is carried out, it must be signed off either by a registered competent person scheme or by Building Control.

What work is notifiable under Part P:

• Installation of a new circuit
• Consumer unit replacement
• Any electrical work in a bathroom (within specified zones)
• Any electrical work in a kitchen (involving a new circuit)
• Electrical work in special locations (swimming pools, saunas, etc.)
• Work outdoors including garden lighting and EV chargers on new circuits

What work is NOT notifiable:

• Like-for-like replacements (swapping a socket for a socket)
• Adding a socket or light to an existing circuit in a non-special location
• Work outside of kitchens and bathrooms that doesn't involve new circuits

The two routes to compliance:

| Route | How it works | Who pays | |------|-------------|---------| | Competent person scheme | Registered electrician self-certifies and the scheme notifies Building Control on their behalf | Included in scheme membership fees | | Building Control notification | Non-registered person notifies Building Control before starting work; Building Control inspects and signs off | The homeowner/client pays Building Control fees (typically £200–£400) |

Quick Reference: Which Certificate When?

| Job | Certificate Needed | Notifiable (Part P)? | |----|-------------------|---------------------| | Full rewire | EIC | Yes | | New consumer unit | EIC | Yes | | New circuit (cooker, shower, EV) | EIC | Yes | | Adding socket to existing ring | MEIWC | No | | Adding light to existing circuit | MEIWC | No | | New bathroom circuit | EIC | Yes | | New kitchen circuit | EIC | Yes | | Outdoor lighting (new circuit) | EIC | Yes | | Periodic check (existing install) | EICR | N/A | | Landlord check | EICR | N/A | | Like-for-like socket swap | None required (MEIWC best practice) | No |

Landlord Obligations

Since April 2021, private landlords in England must:

• Have an EICR carried out before a new tenancy begins and at least every 5 years
• Provide a copy of the report to existing tenants within 28 days of the inspection
• Provide a copy to new tenants before they occupy the property
• Supply a copy to the local authority within 7 days if requested
• Complete any C1 or C2 remedial work within 28 days (or sooner if specified) and obtain a satisfactory follow-up report

Penalties: Failure to comply can result in fines of up to £30,000 per breach. Local authorities can also arrange remedial work and recover costs from the landlord.

Common Mistakes to Avoid

• Not issuing any certificate at all — this is the biggest problem in the trade. Every piece of electrical work (beyond plug-in appliances) should have paperwork
• Using a minor works cert for notifiable work — if it's a new circuit, it needs a full EIC regardless of how small the job feels
• Backdating certificates — illegal and invalidates your insurance
• Not testing properly — filling in test results without actually testing is fraudulent and dangerous. An RCD that doesn't trip in 300ms can kill someone
• Forgetting to notify — if you're on a competent person scheme, ensure the notification goes through. Many schemes have online portals; check it's actually been submitted

What About Scotland and Northern Ireland?

The rules differ slightly:

• Scotland — electrical work is covered by the Building (Scotland) Regulations 2004. Certification is similar but notification requirements differ. Always check with your local Building Standards department.
• Northern Ireland — Part P equivalent is Technical Booklet P. The EICR landlord obligations mirror England but check current NI-specific regulations.

Using the Right Tools

Before you start any electrical job, make sure your cable sizing and volt drop calculations stack up. Use the Cable Calculator to check conductor sizes for your circuits, and the Volt Drop Calculator to verify you're within the 3% (lighting) or 5% (other) limits set by the On-Site Guide.

Getting the paperwork right isn't glamorous, but it protects you legally, keeps your insurance valid, and — most importantly — keeps people safe.