I Failed My EICR. Can I Still Rent Out My Flat in London?

Are you a homeowner, landlord, or business owner in London? Ensuring the safety and compliance of your property’s electrical installations is crucial, and that’s where an Electrical Installation Condition Report (EICR) certificate comes in. But, how do you obtain one? Our step-by-step guide provides all the information you need to follow to get your EICR certificate. From finding a qualified electrician to scheduling the inspection and addressing any issues highlighted in the report, our guide covers everything you need to know. Don’t risk the safety of your property – read our guide and obtain your EICR certificate today!

I Failed My EICR. Can I Still Rent Out My Flat in London?

Home Articles posted byEICR Certificate

EICR Certificate

11 November 2025

EICR Faults & Failures

Home Articles posted byEICR Certificate

Failed EICR in London? Here’s the Real Answer Landlords Need

You’ve just received your Electrical Installation Condition Report (EICR) and it says “Unsatisfactory.”
Now you’re probably asking:

“Can I still rent my flat, or do I need to wait until everything’s fixed?”

The short answer:
⚠️ You can’t legally rent out a property with an unsatisfactory EICR, but if you’ve already booked remedial work and can prove it, there’s a small legal window of flexibility.

Let’s break down what the law says, what “booked remedial work” means, and how you can stay compliant while keeping your tenants safe.

What the Law Says About Renting After a Failed EICR

Under the Electrical Safety Standards in the Private Rented Sector (England) Regulations 2020, every rented property in England must have a satisfactory EICR certificate in place.

The law requires landlords to:

Get the property inspected every 5 years (or sooner if recommended).
Provide a satisfactory report before renting or renewing a tenancy.
Fix C1 and C2 faults within 28 days of the report (or earlier if the electrician says so).
Provide proof of completed remedial work to the tenant and local council.

So technically:

🚫 You cannot legally rent a property that has a failed EICR.
✅ You can continue existing tenancies temporarily if remedial work has been booked, provided you act promptly and keep written proof.

The “Proof of Booking” Exception Explained

If your EICR failed but you’ve immediately booked remedial work with a qualified electrician, you’re taking reasonable steps to comply with the law.

Here’s how this works:

The law recognises that arranging electrical work can take a few days.
You can show evidence of your booking confirmation (email, invoice, or message) to prove you’re fixing the issue.
If the council inspects your property and sees you’ve arranged repairs, they may allow time before issuing fines.

However, this does not make your property legally compliant to rent until the faults are actually repaired and you have a new Satisfactory EICR certificate.

In other words:

Proof of booking gives you breathing room — not permission to rent long-term.

EICR Codes and What They Mean for Renting

When your electrician completes an EICR, they’ll assign one or more codes to the issues found.

Code	Meaning	Can You Rent?	Action Required
C1	Danger present	❌ No	Must fix immediately
C2	Potential danger	❌ No	Fix within 28 days
C3	Improvement recommended	✅ Yes	Optional fix
FI	Further investigation required	❌ No	Investigate before renting

If your report includes C1, C2, or FI, it’s automatically classed as “Unsatisfactory.”

You can only legally rent or continue renting once those issues have been fixed and a new EICR or written confirmation of completion is issued.

📖 Related reading:
How to Read and Understand an EICR Report for Your London Property

What To Do If You Failed Your EICR

Failing an EICR doesn’t mean you’re in trouble, it just means something needs fixing.
Here’s how to turn that fail into a pass:

1️⃣ Get a Remedial Work Quote

Contact a qualified NICEIC electrician and request a remedial quote.
This will cover all C1, C2, and FI issues found in the report.

👉 Get a Remedial Work Quote

2️⃣ Book the Work Immediately

Even if you can’t do the repairs same day, book them as soon as possible.
Keep all emails or invoices showing your booking date and company name.

This is your proof if the council checks your compliance.

3️⃣ Send Confirmation to Your Tenant (and Council if Needed)

Once the remedial work is booked, email your tenant confirming:

You’ve arranged the repairs
The date of the appointment
The contractor’s details

If the council asks for proof, forward that same confirmation email or invoice.

4️⃣ Complete the Repairs and Retest

After the faults are fixed, your electrician will carry out a re-test and issue a Satisfactory EICR Certificate.

At this stage, your property becomes fully compliant again.

📅 Book now:
Book EICR Inspection in London

Example Scenario: Booked Remedial Work But Still Renting

Let’s say your flat in Battersea failed its EICR on Monday.
You booked remedial work for Thursday with London EICR Certificates and have the confirmation email.

✅ You’re showing due diligence.
✅ You’re working within the 28-day repair window.
✅ If the council checks, you have proof you’re resolving the issue.

However:
🚫 You still can’t legally start a new tenancy or renew a current one until the EICR passes.
You can continue to let existing tenants stay temporarily, but new rentals must wait for the “Satisfactory” report.

What Happens If You Ignore a Failed EICR

If you ignore a failed EICR, the local council can:

Issue fines of up to £30,000 per breach
Serve enforcement notices requiring urgent repairs
Flag your property as non-compliant, affecting insurance and tenancy renewals

💡 Quick reminder: A failed EICR is not just paperwork, it’s a safety issue that could lead to fires, electric shocks, or invalid insurance claims.

How Fast Can You Fix a Failed EICR?

At London EICR Certificates, we handle failed EICRs every day.
Most landlords are back to full compliance within 24–48 hours.

We offer:

⚡ Same-day remedial quotes
🔧 Fast re-tests after repairs
📜 5-year valid EICR certificates
🧰 NICEIC-approved electricians

Book your remedial work today → Book Online

What Does a Passed EICR Certificate Look Like?

Once your repairs are complete, you’ll receive a Satisfactory Report stating that your property meets electrical safety standards.
This document is valid for five years and must be shared with tenants before they move in.

📘 Related: EICR Certificate Cost in London

Pro Tips to Avoid Failing Your Next EICR

Replace outdated fuse boards with RCD-protected consumer units.
Have visual electrical checks done every year.
Use only NICEIC electricians never DIY repairs.
Keep your certificates safe and ready to show to agents or councils.

Read: How to Pass Your EICR Inspection in London — Expert Advice from Certified Electricians

Common Questions from London Landlords

Can I still rent my property with a failed EICR if tenants already live there?

You can maintain existing tenancies only if you’ve booked repairs and can show proof of remedial work within 28 days. However, you cannot sign new tenants or renew leases until it’s passed.

Can I be fined even if I booked the repair?

If the council sees that you acted quickly and booked repairs, you’ll likely avoid fines. They target landlords who ignore reports or fail to provide evidence of remedial actions.

Do I need to give tenants the failed report?

Yes. Tenants must receive a copy of the EICR within 28 days of the inspection, even if it failed. This shows transparency and compliance.

What if the electrician can’t come within 28 days?

Inform the council immediately, showing your booking confirmation. They may allow an extension if you’ve demonstrated prompt action.

Quick Reference: Renting Legally After a Failed EICR

Situation	Can You Rent?	Action
Failed EICR (C1/C2/FI)	❌ No	Fix Immediately
Booked Remedial Work (Proof Provided)	⚠️ Temporarily Allowed (existing tenancy only)	Complete repairs ASAP
Only C3 Issues	✅ Yes	Optional improvements
Retested & Passed	✅ Yes	Fully compliant

The Fastest Way to Get Back to “Satisfactory”

Electrical safety is non-negotiable, but it doesn’t have to be stressful.
With our fast remedial service, most landlords in London get their new certificate within one day of booking.

✅ Book Your Failed EICR Repair Today
✅ Learn About EICR Costs
✅ Read What to Do If Your Property Fails the EICR Certificate in London

If you failed your EICR, you can’t legally rent or renew a tenancy until it’s passed.
But if you’ve booked remedial work immediately and can prove it, councils see that as responsible compliance, giving you a short grace period.

Fix it fast, keep everything documented, and you’ll be back to fully compliant — with peace of mind for another five years.

📞 Call us at 0203 811 8331 or
💻 Book Online in 2 Minutes

Because when it comes to safety and compliance, there’s no reason to risk it.

Frequently Asked Questions About Renting After a Failed EICR in London

1️⃣ Can I rent my property if I failed the EICR?

No, you can’t legally rent or renew a tenancy if your EICR is marked “Unsatisfactory.” You must fix all C1, C2, or FI issues first and obtain a new Satisfactory EICR Certificate before the property is legally safe to rent.

2️⃣ Can I still rent if I’ve booked remedial work after a failed EICR?

If you’ve booked remedial work with a qualified electrician and can show written proof (like a confirmation email or invoice), local councils often allow a short grace period while repairs are completed. However, this doesn’t make your property compliant ,you can’t start new tenancies until you pass the re-test.

3️⃣ How long do I have to fix issues after a failed EICR?

You have 28 days from the date of the report to fix any C1 or C2 issues (or sooner if your electrician specifies). After repairs, you must send written confirmation of the completed work to your tenant and local council if requested.

4️⃣ What happens if I ignore a failed EICR in London?

Ignoring a failed EICR can lead to fines up to £30,000, enforcement notices, and even invalid insurance. Councils take electrical safety seriously, especially if tenants are at risk.

5️⃣ What does “Unsatisfactory” mean on an EICR report?

“Unsatisfactory” means your electrical system has one or more faults (C1, C2, or FI) that make it unsafe. The property fails the inspection and must be repaired before it’s legally rentable again.

6️⃣ Can tenants stay in the property while I fix a failed EICR?

Yes, existing tenants can usually remain temporarily if repairs are booked and safety is managed. However, if your report shows C1 (immediate danger), those issues must be isolated or repaired straight away for safety reasons.

7️⃣ Do I need to give tenants a copy of a failed EICR?

Yes. Landlords are required to provide tenants with a copy of the EICR even if it has failed within 28 days of the inspection. This demonstrates transparency and compliance with regulations.

8️⃣ Can I show proof of booked work to avoid fines?

Yes, proof of booked remedial work (like a quote, confirmation email, or scheduled date) helps show you’ve taken reasonable steps to comply. Councils are less likely to fine landlords who act promptly.

9️⃣ How do I get a new EICR after remedial work?

Once your electrician completes all repairs, they’ll re-test the fixed circuits and issue a new Satisfactory EICR Certificate, valid for five years.

🔟 Who can fix a failed EICR in London?

Only qualified and registered electricians, ideally NICEIC-approved contractors, should carry out remedial work. They ensure the job meets legal standards and provide documentation needed for compliance.

Please Submit Details Below

For your convenience, you can also fill out our online contact form below. Please provide as much detail as possible, and a member of our team will get back to you promptly.

Tags :

EICR Certificates,EICR Inspection

Share This :

Recent Posts

Will your London property fail its EICR? Professional EICR inspection checklist and consumer unit for London landlords.

Will Your London Property Fail Its EICR? 12 Real Scenarios Landlords Should Check First

5 June 2026

EICR for London property auctions showing an electrical installation condition report, auction gavel and property model before bidding

EICR for London Property Auctions: Why Buyers Should Check Electrical Safety Before Bidding

2 June 2026

EICR for Restaurants, Cafés and Commercial Kitchens in London

31 May 2026

24/7 Emergency Service

Find answers to common questions about EICR certificates and electrical safety inspections in London. Visit our FAQ page on EICRcertificates.com for more information.

0203 811 8331

EICR Failed Due to High Ze or Impedance Readings. What It Means & How to Fix It

Home Articles posted byEICR Certificate

EICR Certificate

10 November 2025

EICR Faults & Failures

Home Articles posted byEICR Certificate

EICR Failed Due to High Ze or Impedance Readings

If your recent EICR report mentions “high Ze” or “impedance readings above limits”, you’re not alone.
These are among the most common causes of EICR failures in London properties, especially older homes or offices with outdated earthing arrangements.

In this 2025 guide, the certified electricians from London EICR Certificates explain what “high Ze” means, why it causes an EICR fail, and how to fix it safely without breaking your budget.

What Is Ze in an Electrical Installation?

The term Ze stands for External Earth Fault Loop Impedance, which measures the resistance of the earth path outside your property, between your consumer unit (fuse board) and the electricity supplier’s earth connection.

A low Ze means electricity can flow safely back to earth in the event of a fault.
A high Ze, however, means the circuit’s fault current may not be strong enough to trip protective devices (like fuses or RCDs), leading to potential electric shock or fire hazards.

Acceptable Ze Values (Typical)

Earthing Type	Max Ze Value (Ohms)
TN-S	0.8 Ω
TN-C-S (PME)	0.35 Ω
TT	200 Ω (max, but should be much lower in practice)

If your reading exceeds these limits, it’s a red flag during an EICR inspection.

Why High Ze Causes EICR Failure

When your Ze (earth loop impedance) is too high, the protective devices can’t disconnect the supply quickly enough during a fault.
That delay increases the risk of electrocution or fire; hence, EICR inspectors must code it as a C2 fault (potentially dangerous).

A typical EICR remark might read:

“High external earth loop impedance – disconnection time not met (C2).”

This instantly fails the EICR until the issue is corrected.

Common Causes of High Ze in London Properties

Corroded or loose earth connections at the supply head or main bonding clamp.
Outdated or missing main earthing conductor.
Old TN-S earthing systems where the metallic sheath has degraded.
Detached PME (TN-C-S) connections in multi-occupancy buildings.
Poorly installed consumer unit or broken earth bar links.
Incorrect bonding to gas or water pipes – see our guide on Missing Gas Bonding.
DIY modifications that interrupt the protective earth path.

In London’s older buildings, worn cables or corroded terminals are the number one cause.

How Electricians Test Ze During an EICR

Your electrician performs an Earth Fault Loop Impedance Test using a multifunction tester (MFT).
It’s done by disconnecting the main earth conductor temporarily and measuring the resistance between line and earth at the incoming supply.

If readings are high, additional tests are done at various points (distribution boards, sockets, lighting circuits) to locate the problem.

The process is quick, safe, and fully compliant with BS7671:2018 (18th Edition Amendment 2) wiring regulations.

How to Fix High Ze or Impedance Readings

Depending on what’s causing the problem, fixing a high Ze can involve:

Tightening or cleaning the main earth connection at the supply intake.
Replacing damaged earthing conductors or upgrading to a thicker cable size (often 16mm² or 25mm²).
Installing a new PME earth if available from the supplier (UKPN or equivalent).
Adding an earth rod for TT systems to reduce impedance.
Checking all bonding points (gas, water, structural steel).

In some cases, a new consumer unit upgrade with RCD/RCBO protection might be required, especially if your fuse board is outdated or damaged.

How Much Does It Cost to Fix a High Ze EICR Fault?

In London, costs typically range between £120 – £450, depending on access, earthing type, and remedial complexity.

Repair Type	Average Cost
Reconnect loose earth terminal	£120–£180
Replace or upgrade main earthing conductor	£150–£250
Install new earth rod (TT system)	£200–£350
Full earthing rewire / bonding upgrade	£350–£450

You can learn more about pricing on our EICR Certificate Cost page for a transparent breakdown.

Example: Real London Case Study

In early 2025, one of our electricians in Clapham SW4 tested a 1930s terraced property and found a Ze reading of 2.47Ω on a TN-S system (limit 0.8Ω).
We traced the issue to a corroded earth clamp on the incoming water pipe.
After replacing the clamp and upgrading the bonding, the new reading was 0.42Ω, and the property passed its EICR re-inspection.

What Happens If You Ignore a High Ze Fault?

Ignoring a high Ze issue can lead to:

Failed compliance under landlord regulations
Increased risk of electric shock or fire
Potential insurance invalidation
Civil penalties up to £30,000 for unsafe rental conditions

If you’re a landlord, you’re legally required to maintain safe electrical installations . See our full guide on EICR Certificates for Landlords in London.

Preventing Future EICR Failures

To avoid high impedance readings in the future:

Schedule routine electrical inspections every 5 years (or sooner for rentals).
Keep your main bonding points accessible and corrosion-free.
Upgrade to a modern consumer unit with RCD/RCBOs.
Always use a registered NICEIC or NAPIT electrician. You can book an EICR inspection online here.

High Ze or impedance readings can sound intimidating, but they’re a straightforward fix for a qualified electrician.
The key is addressing the issue early before it compromises safety or leads to costly fines.

At London EICR Certificates, we handle diagnostics, repairs, and re-testing across all London postcodes from Chelsea to Canary Wharf.

✅ Book your EICR remedial inspection today and ensure your property meets 2025 electrical safety standards.

London Areas We Frequently See This Fault

Our engineers often find this issue in:

Explore our location pages:
👉 EICR East London
👉 EICR Central London
👉 EICR North London
👉 EICR South London
👉 EICR West London

FAQ: Understanding and Fixing High Ze or Impedance Readings on EICR Reports

1. What does high Ze mean on an EICR report?

High Ze means that the external earth fault loop impedance of your electrical installation is above the safe limits set by the wiring regulations. In simple terms, electricity cannot flow back to earth efficiently during a fault, increasing the risk of electric shock or fire.

2. Why does high Ze cause an EICR to fail?

When the Ze reading is too high, it means that protective devices such as fuses or RCDs may not trip fast enough to disconnect the power during a fault. Because of this, inspectors are required to issue a C2 fault code, meaning “potentially dangerous,” which automatically fails your EICR.

3. What is the acceptable Ze value in the UK?

Acceptable Ze values vary based on your earthing type. For TN-S systems, it should not exceed 0.8 ohms. For TN-C-S (PME) systems, the limit is 0.35 ohms. For TT systems, it must be under 200 ohms, though lower is better. Any value higher than these limits indicates excessive resistance in the earthing path.

4. Can a high Ze be fixed easily?

Yes, in most cases it’s straightforward. A qualified electrician can tighten or clean the main earth connections, upgrade bonding to gas and water pipes, or install a new earth rod if required. For more complex issues, such as old earthing systems, a new connection or consumer unit upgrade may be needed.

5. How much does it cost to fix a high Ze fault in London?

The average cost in London ranges from £120 to £450, depending on the cause. Minor fixes like reconnecting an earth clamp are cheaper, while replacing bonding or installing an earth electrode costs more. You can find full details on our EICR Certificate Cost page at londoneicrcertificates.co.uk/eicr-certificate-cost.

6. Can a high Ze reading damage electrical appliances?

High Ze itself doesn’t directly damage appliances, but it can lead to delayed fault disconnection and unsafe voltage conditions, which may stress sensitive electronics and increase the risk of overheating or electrical failure over time.

7. What causes high Ze readings in older London homes?

Older London properties often have corroded or degraded earthing cables, missing main bonding, or worn metallic sheaths on TN-S systems. In multi-occupancy buildings, shared earth paths can also be damaged or disconnected, leading to unstable Ze values.

8. Do I need a new fuse board if my EICR failed due to high Ze?

Not always. If the main earth connection is sound, a simple repair may be enough. However, if your consumer unit lacks RCD or RCBO protection, upgrading it can significantly improve safety and ensure compliance during your next EICR reinspection. Learn more about remedial upgrades at londoneicrcertificates.co.uk/remedial-work-for-failed-eicr-certificates.

9. How long does it take to repair a high Ze issue?

Most high Ze faults can be repaired in one to two hours, depending on accessibility and the cause. After the repair, your electrician will perform a retest to verify that the readings now fall within safe limits.

10. Can I still pass an EICR with a high Ze if RCD protection is installed?

RCDs offer an additional layer of protection, but they don’t replace proper earthing. If the Ze value exceeds the maximum allowed by the regulations, the installation may still fail. An electrician will decide whether it’s a C2 (fail) or C3 (advisory) based on the actual readings and system design.