People ask for an example because they have been handed one and cannot tell whether it is complete. The quick test is the back rather than the front: a front page with signatures and no schedules behind it evidences nothing at all, and that is the commonest defective certificate in circulation. Here is what each part is for, in the order it appears.
An electrical installation certificate example, box by box
The top identifies the CLIENT and the installation address, then the EXTENT of the work covered, which is the most important free text box on the document because it is what limits everything else: new consumer unit and two circuits is a different certificate from rewire of the ground floor. Next, whether the work is a new installation, an addition or an alteration. Then the DECLARATIONS, in three parts for design, construction and inspection and testing, each signed and dated, which may be one person or three on a larger job. Then particulars of the installation at the origin: the earthing arrangement, the number and type of live conductors, the measured supply characteristics including the earth fault loop impedance at the origin, and the main switch details. Then any departures from the standard, comments on the existing installation where the new work joins it, and the recommended date for the next inspection. Then the schedules.
The electrical installation certificate legal requirement, and who signs
Two different obligations get conflated. The certificate itself is required by the wiring standard as the record that the work was designed, built, inspected and tested, and it is signed by the competent persons who did each of those things, not by the client and not by a manager. Separately, in England and Wales certain domestic work is NOTIFIABLE under the building regulations, and that is discharged either by an installer registered with a competent person scheme, who self certifies and whose scheme issues a building regulations compliance certificate, or by notifying building control before the work starts. So a householder having a board changed should expect two documents, and the absence of the second is the one that surfaces at a sale. Scotland and Northern Ireland have their own arrangements for the notification half.
The two schedules, and why a certificate without them evidences nothing
The schedule of INSPECTIONS is a list of items checked by eye and by judgement, each marked as satisfactory, not applicable or limited, covering things no instrument measures: the suitability of equipment, the presence of barriers and enclosures, correct connections, identification and labelling, and the adequacy of access. The schedule of TEST RESULTS is a line for every circuit with the measured values: continuity, insulation resistance, polarity, earth fault loop impedance and the operation of the protective device, with the instrument's own details recorded. Those two pages are the evidence; the front page is a summary of them. Two reads that should prompt questions: identical values down every row of the test schedule, which no real installation produces, and a certificate whose extent box says whole installation while its test schedule lists four circuits.
How long does an electrical certificate last, and the next inspection date on it
The certificate itself does not run out. It records that the work named in the extent box was designed, built, inspected and tested to the wiring standard on the day it was signed, and nothing later changes what was true then. The box people read as an expiry is the recommended date for the next inspection, which is a recommendation for a future condition report on the whole installation rather than a shelf life for this document. What does carry a deadline is that condition report: in a privately rented home in England the inspection has to happen at intervals of no more than five years, or sooner where the last report said so. So a householder holding a certificate for a board change carried out six years ago holds a valid record of that work and no evidence at all about the rest of the house.
Questions people ask about electrical installation certificate example
Can a certificate be issued later, by somebody else?
No. The declarations are signed by the people who designed, built and tested the work, so nobody who was not there can certify it. Where paperwork is missing the honest routes are a condition report on the installation as it now stands, which assesses what is actually there, and where notifiable work was never notified, a regularisation application to building control. An installer who offers to certify somebody else's work is offering something the form does not permit.
What if the extent box is vague?
Ask for it to be rewritten before you accept the document, because that box decides what the certificate covers and therefore what it is worth in a dispute or at a sale. Vague extents are usually laziness rather than concealment, and a one line amendment costs nothing. The version to be wary of is an extent that has been written broadly while the test schedule covers a fraction of it.
How does an EIC electrical certificate differ from a condition report?
A certificate covers work that was just carried out and says it complies; a condition report assesses an existing installation as a whole and gives a satisfactory or unsatisfactory verdict with coded observations. New wiring produces the first and the five yearly duty in a rented home is discharged by the second. A property with a recent certificate for a kitchen and no condition report has evidence about the kitchen and nothing about the house.
How long is an electrical certificate valid for, UK wide?
It depends which document is in your hand. An installation certificate and a minor works certificate do not expire, because they certify work on the date it was tested. A condition report carries the inspector's own recommended date for the next inspection, and in a privately rented home in England that date can be no more than five years after the inspection.
Is an electrical certificate of compliance UK builders ask for the same document?
Usually not. That phrase normally means the building regulations compliance certificate a competent person scheme issues after notifiable domestic work in England and Wales, which is the notification half. The installation certificate is the wiring half, signed by the people who designed, built and tested the work. A sale tends to ask for both.
Is an EIC certificate cost quoted separately from the work?
It should not be. Certifying the work is part of carrying it out under the wiring standard, so a quote that prices the certificate as an extra is charging for something the job already owes you. Where a separate fee is legitimate it is normally the scheme notification on notifiable work, which is worth asking about by name.