Will Your London Property Fail Its EICR? 12 Real Scenarios Landlords Should Check First
5 June 2026
If you own or manage a rental property in London, one question can create immediate stress:
Will the property pass its EICR, or will it fail?
Most landlords only think about an EICR certificate when a tenant is moving in, a letting agent requests one, a council asks for proof, or an existing certificate is close to expiry. The problem is that electrical faults rarely announce themselves clearly. A property can look clean, modern and fully functional, yet still fail an Electrical Installation Condition Report because of hidden wiring defects, missing protection, poor earthing, damaged accessories or unsafe consumer unit arrangements.
This guide works like a practical EICR failure simulator for London landlords. Instead of giving another generic explanation of electrical safety rules, we will walk through 12 realistic scenarios we regularly see across London flats, houses, HMOs and commercial properties. For each scenario, we explain the likely risk, whether it may lead to a failed EICR, what type of EICR code may appear, and what the landlord or property owner should do next.
If you already know you need an inspection, you can book your EICR certificate online through our booking page here: Book an EICR Certificate in London. If you are still comparing options, our main EICR Services in London page explains what is included in our inspection and report.
An EICR, or Electrical Installation Condition Report, is a formal inspection and test of the fixed electrical installation inside a property. It is not just a quick visual check. A qualified electrician checks whether the installation is safe for continued use, whether protective devices are suitable, whether circuits are correctly arranged, and whether any defects create danger or potential danger.
For landlords in England, rental properties generally require electrical inspection and testing at least every 5 years, unless the previous report recommends an earlier inspection. A satisfactory EICR is an important part of landlord electrical safety compliance, especially before a new tenancy, renewal, council inspection, HMO licence review or property management handover.
An EICR can fail if the report is marked “unsatisfactory”. This usually happens when the electrician records one or more observations coded as C1, C2 or FI.
Here is a simple breakdown.
| EICR Code | Meaning | Does it usually fail the report? | Typical action |
|---|---|---|---|
| C1 | Danger present | Yes | Immediate action needed |
| C2 | Potentially dangerous | Yes | Remedial work required |
| FI | Further investigation required | Yes | Investigation required before safety can be confirmed |
| C3 | Improvement recommended | No | Improvement advised but not normally a fail on its own |
A C3 observation can still matter commercially. If you are selling, refinancing, applying for a licence or dealing with a cautious managing agent, even “improvement recommended” items may create follow-up questions. But from a basic EICR pass/fail point of view, C1, C2 and FI are the main problem codes.
For a deeper explanation of report codes, you can also read our guide on how to read and understand an EICR report.
The table below gives a practical view of common failure causes. This is not a guaranteed result because every property must be inspected properly, but it gives landlords a useful pre-check.
| Property issue | Failure risk | Possible code | Why it matters |
|---|---|---|---|
| Exposed live parts | Very high | C1 | Immediate electric shock risk |
| No RCD protection where required | High | C2 or C3 depending on situation | Increased shock risk |
| Missing main earthing or bonding | High | C2 | Fault protection may not operate correctly |
| Burnt sockets or accessories | High | C2 | Fire risk and overheating |
| Damaged consumer unit cover | Medium to high | C2 | Access to live parts possible |
| Borrowed neutrals | High | FI or C2 | Circuit safety cannot be confirmed |
| Overloaded circuits | Medium to high | C2 or FI | Fire and overheating risk |
| Poor circuit labelling | Low to medium | C3 or FI | Safe isolation and testing can be affected |
| Old fuse board | Medium | C2 or C3 depending on defects | Age alone is not always a fail |
| Bathroom fittings not suitable | Medium to high | C2 | Water and electricity risk |
| No previous certificate | Compliance risk | Not a defect itself | The installation still needs testing |
| DIY electrical work | Medium to high | FI or C2 | Quality and safety may be unknown |
This is one of the most common landlord assumptions. The flat may have new flooring, painted walls, modern spotlights, a clean kitchen and good-looking sockets. On the surface, everything appears well maintained. But EICR testing is not based on appearance alone.
A modern-looking London flat can still fail because of hidden issues behind the consumer unit, poor circuit arrangements, incorrect earthing, no RCD protection, loose connections, borrowed neutrals or unsafe additions made during previous refurbishments.
Likely EICR result: Depends on testing, but cosmetic condition does not guarantee a pass.
Possible codes: C2, FI or C3 depending on the defect.
Example: A landlord in Battersea prepares a flat for a new tenant. The property has been freshly decorated and all sockets work. During testing, the electrician finds poor continuity on one circuit and signs of previous DIY alteration. The report cannot confirm the circuit is safe without further investigation. This may result in an FI code, making the EICR unsatisfactory until investigated.
What to do next: Do not rely on decoration, age or visual condition. Book a proper EICR before the tenancy deadline. If the property has recently been renovated, ask whether any electrical work was certified. If there are issues after the inspection, our EICR remedial work service can help bring the installation back to a satisfactory standard.
An old fuse board does not automatically mean the property will fail. However, older consumer units often increase the chance of defects being recorded, especially where modern protection is missing or where the installation has been altered over time.
The key question is not simply “is the fuse board old?” The real questions are:
• Are there exposed live parts?
• Is the enclosure damaged?
• Is there suitable circuit protection?
• Is RCD protection present where required?
• Are cables correctly terminated?
• Is the installation safe for continued use?
Likely EICR result: Could pass with C3 recommendations, or fail if there are dangerous or potentially dangerous defects.
Possible codes: C2 or C3, sometimes C1 if live parts are exposed.
Case study example: A 2-bedroom rental flat in Fulham has an older fuse board with rewireable fuses. The tenant reports no problems. During the EICR, the electrician finds missing blanks, poor labelling and no RCD protection to specific circuits. Depending on the exact arrangement and risk, the report may include C2 observations, especially where shock protection is inadequate.
What to do next: If your fuse board is old, do not wait until the day before a tenant moves in. Arrange the inspection early. If the board needs upgrading, factor in time for remedial work and retesting.
For pricing guidance before booking, see our EICR Certificate Cost in London page.
This is not guaranteed. A previous satisfactory EICR is useful, but it does not freeze the electrical installation in time. Over 5 years, tenants may overload sockets, accessories may become damaged, moisture may affect fittings, circuits may be altered, and previous hidden issues may become more visible under current inspection standards.
A property can pass one EICR and fail the next one.
Likely EICR result: Uncertain until tested.
Possible codes: C2, FI or C3 depending on what has changed.
Example: A landlord in Kensington had a satisfactory EICR in 2021. In 2026, the property is inspected again before renewal. The electrician finds damaged sockets, loose terminations and a bathroom fitting that is unsuitable for its zone. The new report is unsatisfactory because the current installation condition has changed.
What to do next: Treat every EICR renewal as a fresh safety check. If your current certificate is expiring soon, book early rather than waiting for the exact expiry date.
This is a high-pressure scenario. It is also one of the most avoidable. When a tenant is moving in and the landlord does not have a valid EICR, there is no time buffer if the property fails. Even a small C2 or FI observation can delay paperwork, create agent pressure and cause awkward conversations with the tenant.
Likely EICR result: The inspection may be completed, but a failed result can create immediate compliance problems.
Possible codes: Any, depending on the condition.
Risk level: High because timing is the issue.
Case study example: A landlord in Clapham books an urgent EICR the day before a new tenancy. The electrician finds missing bonding and a damaged socket. The landlord expected a certificate the same day, but the report is unsatisfactory and remedial work is required before a satisfactory certificate can be issued.
What to do next: If you are close to a move-in date, book urgently and be prepared for possible remedials. For last-minute bookings, use our Book Online page or contact us directly. We regularly help landlords, tenants and agents arrange fast EICR inspections across London.
This is a classic misunderstanding. Electrical safety is not only about whether the socket works. A socket can power a kettle, charger or vacuum cleaner and still fail an EICR because the installation lacks suitable protection against electric shock.
RCD protection is especially important for socket outlets, bathroom circuits, outdoor equipment and many modern electrical arrangements. Whether lack of RCD protection becomes C2 or C3 depends on the specific installation, use, circuit type and current guidance applied by the inspector.
Likely EICR result: Medium to high failure risk.
Possible codes: C2 or C3 depending on context.
Example: A rented flat in Islington has a consumer unit with no RCD protection on socket circuits. The tenant uses extension leads and portable appliances throughout the property. During inspection, the lack of suitable additional protection may be recorded as potentially dangerous.
What to do next: Do not argue that “it works”. An EICR is about safety under fault conditions, not only normal operation. If the report fails due to RCD issues, our electricians can quote for remedial work after the inspection.
Bathrooms are higher-risk areas because water and electricity are close together. An unsuitable light fitting, exposed wiring, damaged extractor fan, poor IP rating, unsafe shaver socket or incorrect circuit protection can lead to failure.
Likely EICR result: Medium to high failure risk if bathroom fittings are unsuitable.
Possible codes: C2 or C3.
Case study example: A landlord in Chelsea has a bathroom with standard downlights installed years ago. The lights work, but they are not suitable for the bathroom zone and there is no appropriate protection. The electrician records the issue because the installation may create a shock risk.
What to do next: Before an EICR, visually check bathroom fittings for damage, missing covers, loose fans, cracked accessories and signs of moisture. Do not replace fittings yourself unless you are competent and the work is properly certified where required.
Main protective bonding is one of the most important safety features in many installations. It helps reduce electric shock risk by connecting extraneous conductive parts, such as gas and water pipework, to the electrical earthing system where required.
Missing or inadequate bonding can be a serious EICR issue.
Likely EICR result: High failure risk.
Possible code: C2.
Example: A landlord owns a ground-floor flat in Wandsworth. The tenant has no electrical complaints. During the EICR, the electrician checks the main bonding and finds that bonding to the gas pipe is missing or cannot be verified. The property may receive a C2 observation because the fault protection arrangement is incomplete.
What to do next: If you have access to the meter cupboard or service intake, check whether bonding conductors are visible, but do not assume anything. The electrician must verify properly. If bonding is missing, remedial work is usually required before the report can become satisfactory.
This happens often. A landlord books an EICR because the agent asks for “the electrical certificate”. The landlord expects a PDF certificate, but the inspection finds defects. The electrician cannot issue a satisfactory report just because the agent needs one.
An EICR is an inspection report, not a guaranteed pass certificate.
Likely EICR result: Depends on condition.
Possible codes: Any.
Risk level: Commercially high because the agent may block marketing or tenancy progression until the issue is resolved.
Case study example: An estate agent in Central London asks a landlord for an EICR before listing the property. The inspection finds a damaged consumer unit cover and several loose accessories. The report is unsatisfactory, so the agent cannot simply use it as proof of compliance until remedials are completed.
What to do next: Tell your agent that the EICR is booked, but allow a time buffer in case remedial work is required. If you manage multiple properties, our EICR Certificates for Landlords in London page is the best starting point.
Commercial EICRs are often more complex than domestic inspections. Offices, shops, cafés, restaurants, salons, warehouses and shared workspaces can have larger boards, more circuits, three-phase supplies, emergency lighting, commercial kitchens, server rooms, high equipment loads and more operational disruption.
Commercial properties may also have tenant alterations, poorly documented fit-out work, overloaded circuits or old distribution boards.
Likely EICR result: Higher complexity, higher chance of FI or C2 if documentation and access are poor.
Possible codes: C2, FI or C3.
Commercial example: A small restaurant in Central London books an EICR after years of equipment changes. The kitchen has added fridges, ovens, extraction equipment and extra sockets over time. Testing identifies overloaded circuits and unclear circuit labelling. The report may require further investigation or remedial work before a satisfactory result can be issued.
What to do next: For business premises, plan the inspection around trading hours and make sure the electrician has access to distribution boards, locked cupboards, plant areas, kitchens and basement rooms. Our Commercial EICR Certificates in London service is designed for offices, shops, landlords and business owners who need proper documentation.
Recent electrical work should make a property safer, but only if the work was carried out correctly. Poorly completed additions, uncertified alterations, incorrect cable routes, poorly terminated conductors, mixed circuit arrangements or borrowed neutrals can cause EICR problems.
Likely EICR result: Depends on workmanship and certification.
Possible codes: FI or C2.
Example: A landlord in Shoreditch had extra sockets installed for a tenant working from home. No certificate was provided. During the EICR, the electrician finds unusual wiring behaviour and cannot confirm the circuit is correctly arranged without additional investigation. This could lead to FI.
What to do next: Keep all electrical certificates and installation records. If you do not have them, tell the electrician before the inspection. If faults are found, arrange proper remedial work rather than patch repairs.
Extension leads are not part of the fixed installation in the same way as the wiring inside walls, but heavy extension lead use can indicate that the property does not have enough suitable socket outlets for modern use. It can also expose overheating, poor loading and tenant safety risks.
Likely EICR result: Extension leads alone may not fail the fixed wiring report, but related issues might.
Possible codes: C3, C2 or FI depending on what is found.
Example: A 1-bedroom flat in Canary Wharf has only a few socket outlets in the living room. The tenant has a workstation, heater, router, TV and chargers connected through multiple adaptors. The electrician may recommend improvements and may identify signs of overheating or socket damage.
What to do next: Before an inspection, ask tenants about electrical issues, tripping, burning smells, warm sockets or flickering lights. If sockets are damaged or overloaded, arrange inspection before the issue becomes more expensive.
Not having the old report does not automatically mean the electrical installation will fail. However, it creates a compliance and management issue. Without the previous certificate, you may not know when the next inspection was due, what limitations were recorded, whether C3 improvements were recommended, or whether any previous remedial work was completed.
Likely EICR result: Unknown.
Compliance risk: High if the property is rented and no valid report can be produced.
Example: A landlord inherits a London property and believes there was an EICR “a few years ago”. The letting agent asks for the report, but nobody can find it. In this situation, the safest step is usually to book a new inspection rather than rely on memory.
What to do next: If the property is rented, being marketed or changing tenants, book a new EICR. You can also use our EICR Certificate Cost page to estimate the likely inspection cost before arranging a visit.
This table gives a simple risk rating for the 12 scenarios above.
| Scenario | Likelihood of EICR issue | Urgency | Best next step |
|---|---|---|---|
| Modern-looking property but untested wiring | Medium | Medium | Book inspection before tenancy deadline |
| Old fuse board | Medium to high | Medium | Inspect early and allow time for remedials |
| Passed 5 years ago | Medium | Medium | Treat renewal as a fresh inspection |
| Tenant moving in tomorrow | High | Very high | Book urgent EICR immediately |
| No RCD protection | Medium to high | High | Inspect and quote remedials if needed |
| Bathroom electrical concerns | Medium to high | High | Check fittings and test properly |
| Missing bonding | High | High | Arrange remedial work if confirmed |
| Agent needs certificate | Medium | High | Book before marketing or move-in |
| Commercial property | Medium to high | Medium | Plan access and downtime |
| Recent uncertified electrical work | Medium to high | High | Provide records or investigate |
| Heavy extension lead use | Medium | Medium | Check sockets and loading |
| Missing previous EICR | High compliance risk | High | Book new EICR |
If your EICR is unsatisfactory, the next step depends on the codes and observations. The electrician should provide a report explaining the defects. In many cases, remedial work can be quoted after the inspection. Once the necessary work is completed, the property can be retested or certified as appropriate.
A failed EICR does not always mean a full rewire. Many failed reports are caused by targeted defects such as damaged accessories, missing bonding, lack of protection, poor labelling, unsafe fittings or specific circuit faults. However, some older or poorly altered properties may require more substantial work.
Here is a practical breakdown.
| EICR outcome | What it means | What you should do |
|---|---|---|
| Satisfactory | No C1, C2 or FI observations | Keep the report and diarise renewal |
| Unsatisfactory with C1 | Immediate danger | Make safe urgently |
| Unsatisfactory with C2 | Potentially dangerous | Arrange remedial work |
| Unsatisfactory with FI | Safety cannot be confirmed | Arrange further investigation |
| Satisfactory with C3 | Improvement recommended | Consider upgrades, especially before future letting or sale |
If you already have a failed report and need help understanding the next step, visit our Remedial Work for Failed EICR Certificates page. If you want to estimate potential remedial costs before speaking to us, you can also use our failed EICR remedial cost estimator tool here: Failed EICR Remedial Cost Estimator.
A landlord in West London contacted us because a tenant was due to move in within a few days. The flat looked excellent: clean walls, modern kitchen, new flooring and no visible electrical damage. The landlord expected a quick certificate.
During the inspection, the electrician found that the consumer unit arrangement was not as straightforward as expected. Some circuit labelling was unclear, socket testing showed problems, and there were concerns that required further investigation. The property did not receive a satisfactory report on the first visit.
The issue was not that the landlord had ignored the property. The issue was that visual presentation and electrical safety are not the same thing.
Lesson: Book the EICR before the final tenancy deadline. A nice-looking flat can still have hidden defects.
Best internal link for this situation: EICR Certificates for Landlords in London.
A small commercial unit in London had been used by different tenants over several years. Each tenant made small changes: extra sockets, different equipment, new lighting and altered layouts. Nobody had a complete set of records.
When the EICR was arranged, the electrician had to inspect a more complicated installation than the owner expected. Some circuits were poorly labelled, parts of the installation were difficult to trace, and several observations required follow-up.
Lesson: Commercial EICRs need planning. Access, documentation and circuit identification matter.
Best internal link for this situation: Commercial EICR Certificates in London.
Not every issue on an EICR automatically means the report has failed. A landlord contacted us worried because their report included improvement recommendations. The report was still satisfactory because the observations were coded C3 only.
However, the C3 items were still worth considering. If the landlord ignored them for another 5 years, they could become more serious later, especially if the property use changed or the installation deteriorated.
Lesson: C3 is not usually a fail, but it is not useless information. It is a warning that improvement is recommended.
Best internal link for this situation: How to Read an EICR Report.
You cannot fully self-certify your property, but you can reduce avoidable problems before the inspection.
Use this pre-inspection checklist:
• Make sure the electrician has access to the consumer unit.
• Clear cupboards, storage and furniture blocking electrical boards.
• Tell the tenant about the appointment and allow enough time.
• Check for cracked sockets, broken switches and loose accessories.
• Look for signs of burning, overheating or flickering lights.
• Find any previous EICR, installation certificates or remedial records.
• Provide access to meter cupboards, basements, loft areas or plant rooms if relevant.
• Do not hide known electrical issues from the electrician.
• Do not attempt DIY electrical repairs before the inspection.
• Book early if a tenant move-in, sale, refinance or agent deadline is approaching.
For homeowners who are not legally required to arrange the same landlord checks but still want peace of mind, our EICR Certificates for Homeowners in London page explains when an inspection is useful before buying, selling, renovating or investigating electrical concerns.
London EICR Certificates provides professional EICR inspections for landlords, homeowners, estate agents, letting agents, commercial property owners and businesses across London.
We can help with:
• EICR inspections for rental properties
• Electrical Installation Condition Reports for homeowners
• Commercial EICR certificates for offices, shops and business premises
• Failed EICR remedial work quotes
• Urgent EICR bookings where availability allows
• EICR reports sent digitally
• Clear guidance on C1, C2, C3 and FI observations
• Support for landlords managing multiple properties
• Practical advice before tenant move-in or agent deadlines
If you need a straightforward inspection, start with our EICR Services in London page. If you are a landlord, use our dedicated Landlord EICR Certificates in London page. If your property has already failed, go directly to EICR Remedial Work.
No, not if the property is rented, being marketed or about to change tenants.
Waiting until the last minute creates three problems:
• You may not get the appointment slot you want.
• If the EICR fails, you may not have time for remedial work.
• Agents, tenants or councils may request the report before you have it ready.
A better approach is to book the inspection before the deadline and keep the report safely stored. If the property passes, you have peace of mind. If it fails, you still have time to resolve it properly.
The honest answer is: you cannot know until it is inspected and tested.
But you can estimate the risk. If your property has an old consumer unit, missing RCD protection, no visible bonding, damaged sockets, bathroom electrical concerns, recent uncertified electrical work, unclear circuit labelling or no previous report, the chance of an unsatisfactory EICR is higher.
The safest step is to book the inspection early, understand the report properly, and deal with any remedial work before it becomes urgent.
If you want to arrange an EICR inspection in London, you can book online here: Book Your EICR Inspection.
London EICR Certificates can inspect your property, issue the report, explain any observations clearly, and provide remedial work support if the report is unsatisfactory.
These answers explain what London landlords, homeowners and property managers need to know before booking an EICR inspection, especially if the property may fail.
Yes. A property can still fail an EICR even if the lights, sockets, boiler and appliances appear to work normally. An EICR checks the safety of the fixed electrical installation, not just whether electricity is present. Hidden issues such as missing RCD protection, poor earthing, damaged wiring, unsafe bathroom fittings, overloaded circuits or borrowed neutrals can make the report unsatisfactory.
Common reasons include no RCD protection, missing main bonding, damaged sockets, loose accessories, exposed live parts, unsafe consumer unit covers, poor circuit labelling, overloaded circuits, bathroom electrical issues, failed continuity readings and defects requiring further investigation. Older London properties, converted flats and properties with previous DIY electrical work can carry a higher risk.
No. An old fuse board does not automatically fail an EICR. The electrician must assess whether the installation is safe for continued use. However, older fuse boards are more likely to have missing protection, damaged parts, exposed live areas, poor labelling or outdated circuit arrangements. These issues may lead to C2, FI or C3 observations depending on the condition.
A report is usually unsatisfactory if it contains C1, C2 or FI observations. C1 means danger is present and immediate action is required. C2 means the issue is potentially dangerous and remedial work is needed. FI means further investigation is required because the electrician cannot confirm the installation is safe without additional checks. C3 means improvement is recommended but does not normally fail the report on its own.
If the EICR is unsatisfactory, the defects must be dealt with properly. For rental properties, landlords must make sure the electrical installation is safe and that required remedial or investigative work is completed within the correct timeframe. If you are close to a tenant move-in date, it is better to book the EICR early so there is time to complete any remedial work before the tenancy becomes urgent.
After a failed EICR, the electrician should provide a report showing the observations and codes. The next step is to review the defects, quote for remedial work if required, complete the necessary repairs or investigations, and then provide confirmation that the installation has been made safe. In many cases, a failed EICR does not mean the property needs a full rewire. It may only need targeted remedial work.
Landlords can reduce avoidable issues by giving the electrician clear access to the consumer unit, checking for broken sockets and switches, locating previous certificates, warning tenants in advance, clearing access to meter cupboards and reporting known electrical problems before the appointment. However, only a qualified inspection and test can confirm whether the installation is satisfactory.
Not always. Lack of RCD protection depends on the circuit type, installation condition, property use and risk involved. In some cases it may be coded C2, which fails the report. In other cases it may be coded C3 as an improvement recommendation. The electrician must assess the actual installation rather than applying a blanket rule.
Yes. If you do not already have a valid satisfactory EICR, you should book the inspection before the new tenant moves in. Leaving it until the last minute is risky because the property may fail and require remedial work. Early booking gives you time to inspect, repair if needed, and provide the certificate to the tenant or letting agent without pressure.
Yes. London EICR Certificates can carry out the inspection, issue the report, explain any C1, C2, C3 or FI observations, and provide a remedial work quote if the report is unsatisfactory. We help landlords, homeowners, estate agents and commercial property owners across London arrange EICR inspections and resolve failed report issues efficiently.
Book a professional EICR inspection and get clear guidance if your property passes or fails.
Find answers to common questions about EICR certificates and electrical safety inspections in London. Visit our FAQ page on EICRcertificates.com for more information.
