A tenant is due to move in, a consumer unit has just been replaced, or an electrician has identified an ageing circuit. The practical question is usually the same: are electrical certificates mandatory, and which document is actually needed? The answer depends on the property, the work carried out and who is responsible for it.
For London landlords, the requirement is clear: a valid Electrical Installation Condition Report, usually called an EICR, is mandatory for most privately rented homes. For homeowners, there is no blanket rule requiring a current certificate simply because they own a house or flat. However, certification can still be required after certain electrical work and is often the sensible evidence that an installation is safe, properly tested and compliant.
Are electrical certificates mandatory for landlords?
In England, private landlords must have the electrical installation in each rented property inspected and tested by a qualified, competent person at least every five years. They must then provide tenants with a copy of the EICR.
This applies to fixed electrical installations, including consumer units, wiring, sockets, switches, lighting circuits and permanently connected equipment. It is not limited to older properties. A recently refurbished flat may still need a report once it is let.
Landlords must give a copy of the report to existing tenants within 28 days of the inspection. New tenants should receive it before they occupy the property, and a prospective tenant can request a copy within 28 days. If the local authority asks for the report, it must normally be supplied within seven days.
An unsatisfactory EICR is not something to file away and deal with later. Observations classed as C1, C2 or FI require action. C1 indicates immediate danger, C2 identifies a potentially dangerous condition, and FI means further investigation is needed without delay. Remedial work should be completed within the stated period, usually 28 days or sooner where the report requires it. The landlord then needs written confirmation that the work has been completed or that the installation now meets the required standard.
Failing to comply can lead to enforcement action and financial penalties. More importantly, it leaves tenants exposed to avoidable electrical risks and landlords without the evidence they need if a problem occurs.
What about Houses in Multiple Occupation?
HMOs may have further licensing conditions set by the local authority, but an EICR remains a core electrical safety requirement. Shared kitchens, heavier appliance use and higher occupancy can all place more demand on an installation. Property managers should not assume an old report covers new alterations, added circuits or a consumer unit upgrade.
When homeowners need an electrical certificate
A homeowner does not normally need an EICR by law at a fixed interval. That said, an inspection is strongly advisable when a property has not been checked for many years, after flooding or fire damage, before major renovation, or when there are warning signs such as tripping circuits, burning smells, warm sockets or flickering lights.
Homeowners may need formal certification when electrical installation work has been carried out. The document required depends on the scope of work.
An Electrical Installation Certificate, or EIC, is generally issued for new installations or significant additions and alterations. Examples include a full rewire, a new consumer unit, a new circuit for an electric oven, an EV charger installation, or substantial changes to existing wiring. It confirms the work has been designed, installed, inspected and tested.
For smaller alterations to an existing circuit, such as adding a socket or replacing a lighting fitting where testing is appropriate, an electrician may issue a Minor Electrical Installation Works Certificate. This records what was changed and the tests completed.
Some domestic work is also notifiable under Building Regulations Part P. This can include certain work in special locations and the installation of new circuits. A registered electrician can usually notify the relevant work through their competent person scheme, after which the homeowner receives a Building Regulations compliance certificate. This is separate from the EIC or minor works certificate, so keep both documents safely.
It is worth retaining certificates even if you have no immediate plans to sell. They provide a clear record for future electricians, help explain alterations to buyers and surveyors, and may be useful if an insurer asks for evidence following an electrical incident.
An EICR is not the same as an installation certificate
These documents are often confused, but they serve different purposes.
An EICR is a condition report. It assesses the safety and condition of an existing fixed installation at the time of inspection. It does not certify that a new installation has been completed.
An EIC or minor works certificate is tied to specific electrical work. It shows that the new or altered work was tested when it was completed. It does not replace periodic inspection of the wider installation.
For example, fitting a new consumer unit should result in an installation certificate. If the property is rented, the landlord will still need a valid EICR for the whole installation at the required interval. Equally, a satisfactory EICR does not remove the need for proper certification after a new circuit is installed.
Are electrical certificates mandatory for businesses?
Businesses have duties under the Electricity at Work Regulations 1989 to ensure electrical systems are maintained so far as reasonably practicable to prevent danger. The law does not prescribe one universal certificate or a fixed EICR interval for every business premises. Instead, the inspection and testing regime should reflect the installation, environment and level of risk.
In practice, a periodic EICR is the usual way to demonstrate that fixed wiring has been assessed and maintained. An office with modern, lightly used circuits may have different inspection needs from a commercial kitchen, workshop, salon or retail unit with high electrical demand. A competent electrician can recommend a suitable next inspection date after assessing the installation.
Business owners should also separate fixed-installation testing from portable appliance testing. PAT testing is not automatically a legal annual requirement, despite what many people believe. The legal duty is to maintain appliances safely. How often an appliance is checked should depend on its type, condition, use and environment. A kettle in a low-risk office and equipment used daily in a busy commercial kitchen do not present the same risk.
What happens during an EICR?
A proper EICR is more than a quick look at the consumer unit. The electrician carries out visual checks and testing to identify deterioration, damage, inadequate earthing, overloaded circuits, unsuitable alterations and faults that could lead to electric shock or fire.
Some circuits may need to be switched off briefly while testing takes place. In occupied homes, landlords and property managers should allow enough access for sockets, distribution boards and fixed equipment to be checked properly. Trying to rush the inspection or testing only part of the installation can produce an incomplete picture.
At the end, the report will state whether the installation is satisfactory or unsatisfactory and list any observations. An unsatisfactory result does not always mean the entire property needs rewiring. It may mean targeted remedial work is needed, such as correcting poor connections, upgrading protection, replacing damaged accessories or investigating a specific fault. The right response is based on the report, not guesswork.
How to avoid gaps in your paperwork
Keep electrical certificates with tenancy documents, property maintenance records or your home file. Record the next inspection date and retain invoices and remedial certificates alongside the original EICR. If electrical work is completed between inspections, make sure the relevant installation or minor works certificate is supplied before the engineer leaves.
Be cautious if someone offers a very cheap certificate without asking about the size of the property, number of consumer units or access arrangements. A meaningful inspection takes time, testing and clear reporting. The lowest upfront price can become costly if faults are missed or the report is not accepted when you need it.
For landlords, the simplest approach is to treat electrical certification as planned maintenance rather than a last-minute compliance task. For homeowners and businesses, arrange an inspection when there is a genuine change in risk, uncertainty about the installation or evidence of a fault. A clear report, accurate diagnosis and properly completed remedial work protect the people using the property and prevent small electrical issues becoming disruptive emergencies.