
What Certificates Should You Receive After Electrical Work?
A plain-English guide to installation, minor works and condition-report documents
The document depends on the work. New circuits, consumer-unit replacements and larger installations commonly require an Electrical Installation Certificate. Additions or alterations to an existing circuit may use a Minor Electrical Installation Works Certificate. An EICR reports on the condition of an existing installation rather than certifying new work.
Electrical Installation Certificate
An Electrical Installation Certificate records the design, construction, inspection and testing of new installation work. It is commonly expected for new circuits, consumer-unit or distribution-board replacement, rewiring and other substantial work.
The certificate should identify the installation, the extent of work, responsible parties, supply characteristics, circuit details and test results. Review the address and scope when you receive it and ask about anything that is unclear.
Minor Electrical Installation Works Certificate
A Minor Works Certificate is commonly used for an addition or alteration that does not include a new circuit, such as certain socket, light or protective-device changes on an existing circuit. It still records inspection and test information relevant to the work.
"Minor" describes the certification route, not the importance of safe workmanship. The circuit must be suitable for the alteration and the work should be tested.
Electrical Installation Condition Report
An EICR is different. It reports on the condition of an existing fixed installation at the time of inspection, subject to stated limitations. It may identify dangerous or potentially dangerous observations, recommendations for improvement and items requiring further investigation.
An EICR should not be used as a substitute for certifying new work. If defects are repaired after an EICR, the remedial work should have its own appropriate documentation.
Building Regulations compliance documentation
Where domestic work is notifiable under Part P, the homeowner should also receive or retain evidence of the Building Regulations compliance route. This is separate from the electrical certificate. The exact process depends on whether the contractor self-certifies through a competent-person scheme or building control is directly involved.
Do not wait until the property is being sold to discover that the expected document was never issued. Confirm the process in the quotation.
What to check before filing the documents
- The property address and client details are correct.
- The extent of work matches what was actually completed.
- Circuit descriptions are clear enough to identify the affected areas.
- Test results and required signatures or declarations are present.
- Any limitations, departures or observations are explained.
- Related schedules and compliance records are included.
Store digital and paper copies. Give relevant documents to future electricians so they can understand the installation without unnecessary investigation.
Frequently asked questions
When should I receive the certificate?
Agree the timing before work starts. It should normally follow completion of inspection and testing without unreasonable delay.
Can an electrician certify someone else's completed work?
They cannot honestly sign declarations for design or construction they did not carry out or take responsibility for. They may inspect and report on the current condition through an appropriate process.
Do I need a certificate for replacing a light fitting?
The documentation depends on whether the work is a repair, replacement or alteration and on the circuit condition. Ask the electrician what record is appropriate.
Next step
Leon Electricians can explain the expected documentation before work begins and provide the appropriate certificate or report for the completed scope. Call 020 3038 6072 or use the website enquiry form to discuss the property or premises.

