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A new distribution board may be fully tested, labelled and handed over this month, while the rest of the building is due a periodic inspection next year. That distinction is at the heart of EICR versus installation certificate: one records the condition of an existing electrical installation at a point in time; the other certifies defined electrical work when it is completed.
For facilities managers, managing agents and commercial landlords, the two documents should work together. Treating one as a substitute for the other can leave gaps in compliance records, maintenance planning and accountability when alterations are made.
An Electrical Installation Condition Report, or EICR, is produced following periodic inspection and testing of an existing installation. Its purpose is to assess, as far as reasonably practicable, whether the installation is safe for continued use and whether deterioration, defects or non-compliance with relevant requirements need attention.
An Electrical Installation Certificate, commonly called an EIC or installation certificate, is issued for new electrical installation work. It confirms that the defined work has been designed, constructed, inspected and tested in accordance with the applicable edition of BS 7671, subject to any recorded departures. It also identifies the scope of work, the people responsible for design, construction and inspection and testing, and the test results obtained at completion.
In short, an EICR asks, “What is the condition of this installation now?” An installation certificate says, “This specified work was verified when it was completed.” Neither document is a lifetime guarantee, and neither removes the need for planned maintenance.
A commercial EICR is usually part of a wider electrical safety and maintenance programme. Inspection includes a visual review of accessible equipment and testing of appropriate circuits and protective measures. The extent and limitations matter. A report may, for example, exclude areas that could not be accessed without disrupting operations, or equipment outside the agreed scope.
The report records observations using classification codes. C1 identifies danger requiring immediate action. C2 identifies a potentially dangerous condition requiring urgent remedial work. FI means further investigation is required without delay. C3 indicates improvement is recommended. Where C1, C2 or FI observations are present, the overall outcome will normally be unsatisfactory until the relevant issues have been addressed or investigated.
For a facilities or estates team, the real value is not simply obtaining a satisfactory outcome. A well-planned inspection provides a current picture of asset condition, identifies emerging issues and helps prioritise remedial works around tenant needs, shutdown windows and available budgets. It can also reveal when ageing distribution equipment, overloaded circuits or poorly documented alterations warrant a broader electrical infrastructure survey.
The Electricity at Work Regulations 1989 require systems to be maintained so far as is reasonably practicable to prevent danger. They do not prescribe one universal EICR interval for every commercial building. Inspection frequency should reflect the type of premises, use, environment, installation condition, records and risk. A warehouse, school, healthcare setting and multi-let office may all require different maintenance strategies.
An installation certificate is tied to a defined package of work, not the whole building unless the project genuinely covers the whole installation. Typical examples include a new LV distribution board, additional final circuits for a refurbishment, a new workshop supply, replacement submains or a significant office fit-out.
It should provide enough detail for the client and future contractors to understand what has been installed. That generally includes circuit information, protective device details, test results, earthing arrangements and confirmation of inspection and testing. Associated drawings, schedules, labelling and operating information may also be essential to a usable handover, particularly where distribution has been changed.
The certificate is valuable evidence that the work was verified at completion. It should be retained with the building’s electrical records, alongside previous reports, drawings, maintenance documentation and records of remedial work. This history helps future inspection engineers distinguish between a longstanding arrangement and a recent alteration, and makes fault-finding less disruptive.
For smaller alterations that do not include the provision of a new circuit, a Minor Electrical Installation Works Certificate may be more appropriate than a full EIC. The correct certificate depends on the scope of work. It should not be selected merely because it is quicker or produces less paperwork.
A recent EIC for a new distribution board does not certify the condition of the older circuits, accessories and equipment it now supplies. Conversely, an EICR completed after a refurbishment does not replace the completion certification for the new circuits and equipment installed as part of that refurbishment.
This becomes particularly relevant in phased commercial projects. A landlord may commission base-build works, then tenants complete separate fit-outs over several years. Each party can introduce circuits, containment, local distribution or specialist equipment. Without proper installation certificates and updated records, a later EICR can take longer, have more limitations and produce findings that are harder to resolve with confidence.
An EICR is also not a design approval document. If a building’s electrical load is increasing because of new air conditioning, EV charging, production equipment, server rooms or tenant demand, the question may be bigger than whether the existing installation is presently satisfactory. Load monitoring, capacity assessment and review of the LV distribution system may be needed before work proceeds.
A sensible handover process starts before the work begins. Agree the extent of the installation, responsibilities for design, shutdown requirements, testing arrangements and the records to be provided. This is especially useful where a construction contractor, managing agent, landlord and tenant all have different responsibilities.
On completion, check that certification matches the actual works. A certificate describing “additional circuits” is less helpful than one that clearly identifies the affected distribution board, circuit references and installed equipment. Circuit charts and labels should reflect the completed installation, rather than relying on marked-up drawings that never reach the operations team.
Where an EICR has identified unsatisfactory items, remedial work should be documented clearly. Depending on the nature and extent of the work, this may require an installation certificate or minor works certificate. Keep the original EICR, the remedial certification and any confirmation of completed actions together. Altering or discarding the original report can obscure the audit trail.
For complex sites, it is often efficient to coordinate EICR remedials with other planned works, such as emergency lighting upgrades, fire alarm alterations, LED replacement or distribution-board maintenance. These systems have their own inspection, testing and documentation requirements. Electrical installation certification does not replace the records required for emergency lighting or fire alarm systems.
The most frequent issue is not necessarily unsafe workmanship. It is incomplete information. A building may have an acceptable EICR but no current circuit schedules after several tenant alterations. Or it may have certificates for recent works but no evidence that the wider installation has been periodically assessed.
Other recurring gaps include unlabelled spare ways, missing test results, unclear ownership of tenant supplies and reports that do not reflect later alterations. These omissions increase risk during maintenance and can delay projects when an incoming tenant, insurer or surveyor asks for evidence.
A competent contractor should be able to explain what the certificate covers, what it does not cover and which records should be updated. For sites across London, Hertfordshire and the Home Counties, consistent document control is particularly useful where estates teams manage multiple properties and several contractors.
No. A satisfactory EICR assesses the installation within its agreed inspection scope at the time of inspection. It does not replace certification for new electrical work that requires verification on completion.
No. It applies to the work described on the certificate. An older installation is not automatically unsafe because it does not match the latest edition of BS 7671, but its condition, suitability and any safety risks should be assessed through inspection, testing and competent engineering judgement.
Retain them for the life of the relevant installation or until they are superseded by clearly documented alteration or replacement. In practice, keeping a complete electrical record set supports maintenance, future inspections, property transactions and project planning.
If your records are fragmented, a planned review can establish what is installed, what has been certified and where further inspection or remedial work is needed. Whitton Electrical supports commercial clients with EICRs, installation certification, infrastructure surveys and compliance-led maintenance programmes, helping building teams make well-informed decisions before minor gaps become operational problems.