Yes, commercial properties must keep their electrical installations safe and maintained to prevent danger. In practice, the recognised way to inspect, test and evidence the condition of the fixed electrical installation is an EICR, also known as fixed wire testing. The law does not set one blanket rule saying every commercial property must have an EICR on the same timetable, but it does require electrical systems to be constructed and maintained so that they do not present danger. That is why a commercial EICR is widely treated as the standard compliance document for business premises.
If you are searching for an electrical safety certificate for commercial premises, a commercial electrical certificate, or an EICR for commercial property, the document you usually need is an Electrical Installation Condition Report covering the fixed wiring installation. For many businesses, this is not just good practice. It is often needed for insurance, lease compliance, facilities management checks, audits, due diligence, and risk control.
Last updated: 2026
Reviewed by: London Safety Certificate compliance team
Key Takeaways
- Commercial premises must keep electrical installations safe and maintained to prevent danger.
- An EICR (fixed wire test) is the standard way to evidence electrical safety compliance for commercial properties.
- There is no single legal test interval for every commercial building; the next inspection date should be set by a competent person based on risk and usage.
- If your insurer, lease, managing agent, or audit requires an EICR, it becomes effectively mandatory for you to operate and remain compliant.
- Keep a compliance pack: EICR + remedials evidence + records, especially for insurance and audits.
Table of Contents
What the Law Actually Requires
The legal duty is about safety and maintenance. Commercial electrical systems must be properly constructed, maintained, and managed so they do not create danger. That applies to fixed electrical installations used in work premises, including offices, shops, warehouses, restaurants, industrial units, and other non-domestic buildings.
That is the key point many pages get wrong. The law is not centred on the phrase “EICR certificate”. The law is centred on keeping the system safe. The EICR is the accepted inspection and testing report used to evidence that the fixed installation has been assessed and that defects, deterioration, and risks have been identified and recorded.
Is an EICR Mandatory for Every Commercial Property?
The professional answer is this: the duty to keep the electrical installation safe is mandatory, and the EICR is the standard way to demonstrate that duty has been met. That is why an EICR is effectively required for most commercial premises even though the law is framed around safety rather than a single named certificate.
In real commercial settings, an EICR often becomes unavoidable where:
- the insurer asks for evidence of electrical safety
- the lease places maintenance obligations on the tenant or landlord
- a managing agent requires updated compliance records
- a business is preparing for audit, acquisition, fit-out, or occupation
- there has been damage, flooding, fire risk, or a known electrical concern
- a previous report has already recommended the next inspection date
So while the law is high level, the compliance reality is much more practical. If you need to prove the fixed installation is being properly maintained, a commercial EICR is usually the document that does that.
What Counts as a Commercial EICR?
A commercial EICR is an inspection and testing report for the fixed electrical installation in a non-domestic property. It is commonly referred to as fixed wire testing for businesses. It relates to the building’s permanent electrical system rather than movable equipment.
This usually includes the intake equipment, distribution boards, protective devices, fixed circuits, earthing and bonding, and the general condition of the installation. It is relevant to offices, retail units, restaurants, industrial premises, mixed-use buildings, common landlord areas, and other commercial environments.
Who Is Responsible for the EICR on Commercial Property?
Responsibility depends on control, not just ownership.
In commercial property, the responsible party is usually the person or organisation that controls the fixed electrical installation. That may be the landlord, the tenant, the building owner, the managing agent, or a combination of parties depending on the lease, the layout of the building, and who is responsible for maintenance and repairs.
This is why commercial premises can be more complicated than domestic rentals. A lease may make the tenant responsible for the demised area while the landlord remains responsible for landlord supplies, risers, plant areas, common parts, or incoming services. In other buildings, the landlord keeps wider control. The practical rule is simple: if you control that part of the installation, you need to keep it safe and be able to evidence that you have done so. If you need a more detailed breakdown of control and lease responsibility, read who is responsible for EICR on commercial property.
Practical rule:
If you control it, you’re responsible for keeping it safe – and for being able to evidence that with inspection/testing records.
Is There a Legal Interval for Commercial EICRs?
There is no single universal legal interval that applies to every commercial building. The frequency should be based on risk, usage, environment, condition, and the recommendation of a competent person following inspection. HSE guidance takes the same risk-based approach to maintenance and testing rather than imposing one blanket timetable for all cases.
That means the correct answer to “how often does a commercial property need an EICR?” is not the same for every site. A low-risk office with a well-maintained installation is not the same as a workshop, industrial unit, leisure venue, kitchen environment, or older property with heavier electrical demand.
What matters in practice is this:
- the environment the installation operates in
- the age and condition of the system
- the type of use and electrical load
- previous inspection findings
- whether remedial works were completed properly
- the recommended next inspection date stated on the last report
For most businesses, the next inspection date on the current EICR is the key document to follow.
Important: Your EICR should state a recommended next inspection date. Follow that date – that’s what auditors and insurers usually check.
What a Commercial EICR Covers
A commercial EICR focuses on the fixed installation. That commonly includes:
- incoming supply position and main switchgear
- distribution boards and protective devices
- earthing and bonding arrangements
- lighting circuits and power circuits
- fixed equipment supplies
- visible signs of damage, wear, overheating, or poor workmanship
- test results and coded observations
The report is intended to assess the condition of the installation and identify whether there are dangerous defects, potentially dangerous issues, matters requiring further investigation, or items recommended for improvement. If you want to see how the document is usually presented, view our EICR report example.
What a Commercial EICR Does Not Cover
This point needs to be clear because businesses often mix different compliance documents together.
A commercial EICR does not replace:
- PAT testing for portable appliances
- gas safety records
- fire risk assessments
- emergency lighting inspection records
- fire alarm inspection and servicing records
- specialist servicing schedules for plant or equipment
If a business asks for an “electrical safety certificate for commercial premises”, it is important to separate fixed wire compliance from portable appliances and from other building safety duties.
What Happens if the Commercial EICR Is Unsatisfactory?
If the report records serious observations, the overall result may be unsatisfactory. That means remedial works, and sometimes further investigation, will be needed before the installation can be treated as satisfactory.
Typical observation codes include:
- C1 – danger present
- C2 – potentially dangerous
- FI – further investigation required
- C3 – improvement recommended
C1 and C2 observations are the most urgent. An FI can also prevent the report from being satisfactory because the condition of part of the installation has not been fully resolved. A C3 does not by itself make the report unsatisfactory, but it still records a recommended improvement.
For commercial operators, an unsatisfactory EICR is not something to leave sitting in a drawer. It can affect insurance, building management requirements, health and safety records, and the ability to show that electrical risks are being properly managed. For a full explanation of report outcomes, read EICR codes explained.
What Documents Should a Business Keep?
A commercial property should keep more than just a single pass/fail page. A proper electrical compliance file is usually far stronger than a bare certificate.
A sensible compliance pack should include:
- the latest EICR with schedules
- evidence that remedial works were completed
- any Electrical Installation Certificates or Minor Works Certificates issued afterwards
- records of limitations or inaccessible areas
- maintenance records where relevant
- distribution information or circuit schedules where available
This makes a big difference when dealing with insurers, managing agents, lease queries, audits, internal compliance checks, or future contractors. For a broader operational view, see our guide to commercial property EICR requirements.
How to Prepare for a Commercial EICR
Commercial EICRs go badly when access and planning are poor.
Before the inspection, make sure the person arranging the work has confirmed:
- access to distribution boards, plant areas, risers, and locked rooms
- whether shutdown or partial isolation will be required
- whether the site has any operational restrictions
- whether there is a previous EICR available
- who is responsible for authorising access, shutdowns, or agreed limitations
- whether there are any known faults, alterations, or ongoing issues
Good preparation reduces limitations, avoids wasted visits, and produces a stronger report.
Commercial Landlords, Tenants, and Managing Agents
For landlords, the key issue is proving that the electrical installation under their control is safe and properly maintained. For tenants, the issue is often whether the lease places the duty on them for the demised area. For managing agents, the issue is usually being able to show up-to-date compliance records across common areas and managed assets.
That is why commercial EICR compliance is rarely just a technical matter. It sits inside the wider reality of leases, insurance, facilities management, occupational safety, and operational risk.
Offices, Shops, and Other Business Premises
The same legal principle applies across different types of commercial premises, but the way it is managed may differ.
An EICR for offices may be easier to plan where the installation is straightforward and the environment is low risk. A retail unit, restaurant, workshop, warehouse, or mixed-use building may involve more circuits, more wear, more equipment, or more difficult access. That can affect the inspection scope, the frequency of review, and the importance of keeping full supporting records.
Final Answer
Yes, commercial properties must keep their electrical systems safe and maintained to prevent danger, and an EICR is the recognised report used to evidence that duty for the fixed installation. The law does not impose one single named certificate on one universal timetable for every building, but in practice a commercial EICR is usually the document businesses need to show compliance, satisfy insurers and managing agents, support lease obligations, and maintain proper electrical safety records.
If you need a commercial EICR in London, London Safety Certificate can help arrange inspection and testing for offices, retail units, industrial premises, landlord areas, and other business properties.
Frequently Asked Questions
Is an EICR a legal requirement for commercial property?
Commercial properties must keep their electrical systems safe and maintained to prevent danger. An EICR is the recognised inspection and testing report used to evidence that duty for the fixed installation.
Do commercial properties need an EICR?
In practice, yes. If you need to show the fixed installation has been inspected and maintained properly, the EICR is usually the document used to do that.
Is fixed wire testing the same as a commercial EICR?
In most business contexts, yes. Fixed wire testing usually refers to the inspection and testing process that results in an EICR for the fixed electrical installation.
Who is responsible for an EICR on commercial property?
It depends on who controls the installation and what the lease says. Responsibility may sit with the landlord, the tenant, or another duty holder depending on the area and system involved.
How often does a commercial property need an EICR?
There is no single universal legal interval. The correct interval should be based on risk, use, environment, condition, and the recommendation of a competent person on the previous report.
What does a commercial EICR cover?
It covers the fixed electrical installation, including boards, circuits, protective devices, earthing, bonding, and the recorded condition of the system.
What happens if the EICR is unsatisfactory?
Remedial works, and sometimes further investigation, will be needed before the installation can be treated as satisfactory. The report codes (C1/C2/C3/FI) show urgency.
Is an electrical safety certificate for commercial premises the same as an EICR?
In many cases, that phrase is being used to describe the EICR for the fixed installation, although businesses often confuse it with other compliance documents.
Do we need to shut down the building?
Some tests require isolation. If shutdown isn’t possible, limitations must be agreed and recorded, and a return visit may be needed to complete testing.