How Long Does an EICR Last? (And What Counts as a Fail)

  • Fergus
  • May 20, 2026

Long story short, an EICR doesn’t have a fixed expiry date. It’s a snapshot of the installation’s condition at the time of inspection, with a recommended date for the next periodic inspection set by the electrician who conducted it. For most properties, that timeframe is 5 years, but it can be shorter depending on the installation’s age, condition, and use.

If you’re an electrician, you’re the one making that call. You’re also the one explaining to customers what “unsatisfactory” actually means, why their report failed, and what happens next.

This guide covers the recommended retest intervals by property type, when to set a shorter interval, and what can cause an EICR to fail.

How Long Is an EICR Valid For?

Strictly speaking, an EICR doesn’t “expire.” It’s a report, not a certificate with a fixed validity date. What it does include is a “recommended date for next inspection” – and that’s the date that matters.

The recommended intervals come from BS 7671 (the IET Wiring Regulations) and vary by property type:

Property TypeRecommended Maximum Interval
Private rented property (England)Every 5 years (legal requirement)
Owner-occupied domestic propertyEvery 10 years (recommendation)
Social housing (England)Every 5 years (legal from 1 May 2026)
Commercial offices and retailEvery 5 years
Industrial sites and factoriesEvery 3 years
Hospitals, schools, public buildingsEvery 1–3 years
Swimming pools, laundries, commercial kitchensEvery 1–3 years
Temporary installations (construction sites, events)Every 6–12 months

For landlords in England, the legal position is clear. The Electrical Safety Standards in the Private Rented Sector (England) Regulations 2020 require an EICR at least every five years, or before a new tenancy begins – whichever comes first.

From 1 May 2026, social housing landlords are also legally required to meet the same five-year EICR standard, following the implementation of provisions under the Social Housing (Regulation) Act 2023. So if you work with housing associations or councils, expect a significant increase in EICR demand.

When Should You Set a Shorter Retest Interval?

The five-year interval is a maximum, not a target. As the inspecting electrician, you set the recommended retest date based on what you actually find. There are plenty of situations where a shorter interval is the right call:

The installation is old. Properties with rubber or lead-sheathed cabling, rewirable fuses, or installations that pre-date the 16th Edition are deteriorating faster than modern systems. A two- or three-year retest may be appropriate.

You’ve found C3 observations. C3 items don’t fail the report, but they indicate the installation is drifting away from current standards. If there are multiple C3s, a shorter retest interval gives you and the customer a built-in checkpoint.

The environment is harsh. Properties with high moisture, heat, dust, or vibration – commercial kitchens, laundries, workshops, agricultural buildings – put more stress on electrical installations. Shorter intervals reflect the accelerated wear.

The property has a history of issues. If the previous EICR turned up significant problems, or you can see evidence of poor previous workmanship (borrowed neutrals, bad extensions, overloaded circuits), a shorter retest keeps things in check.

High-risk occupancy. HMOs, student accommodation, care homes, and properties with vulnerable occupants warrant more frequent inspection due to the higher duty of care and heavier use of the electrical installation.

The key point: you’re not just following a table. You’re making a professional judgment based on the actual condition of the installation in front of you. If you think the next inspector needs to see it sooner than five years, say so on the report – and explain to the customer why.

What Makes an EICR Fail?

An EICR is classified as “unsatisfactory” when it contains one or more C1, C2, or FI observation codes. These are the only codes that trigger a fail. C3 observations alone do not make a report unsatisfactory.

The observation codes explained

C1 – Danger present. There’s an immediate risk of injury. You need to make the situation safe before you leave the site – typically by isolating the affected circuit. Examples: exposed live conductors, missing protective covers, accessible live parts, or a live conductor touching an earthed enclosure.

C2 – Potentially dangerous. Not immediately dangerous, but it will become so without intervention. This is where most EICR failures land. Examples: no RCD protection on socket circuits, inadequate earthing or bonding, overloaded circuits without adequate protection, deteriorated wiring, or a consumer unit without adequate fault protection.

C3 – Improvement recommended. The installation is safe for continued use, but doesn’t meet current standards in some respect. A C3 does not fail the report. Examples: a consumer unit that works but lacks surge protection, circuits that would benefit from additional RCD coverage, or accessories that are functional but dated.

FI – Further investigation. You’ve found something you can’t fully assess during this inspection. Maybe you couldn’t access part of the installation, test results were inconclusive, or there’s a suspected fault that needs specialist investigation. FI counts as a fail because the installation can’t be confirmed safe until the investigation is done.

The most common reasons for a fail

From a practical standpoint, here are the issues that come up most frequently on unsatisfactory reports:

No RCD protection on socket circuits. This is probably the single most common C2 finding. Older consumer units with rewireable fuses or MCBs but no RCDs are widespread, particularly in properties built or last rewired before the mid-2000s.

Inadequate earthing or bonding. Missing main bonding to gas or water, undersized earth conductors, or supplementary bonding that’s been disconnected during bathroom or kitchen work.

Outdated consumer units. Units without adequate fault protection, missing or incorrect labelling, or consumer units that don’t comply with the current regulations around enclosure material (the 2016 Amendment 3 requirement for non-combustible consumer unit enclosures in domestic premises).

Deteriorated wiring. Rubber-insulated cabling from pre-1960s installations that has become brittle and cracked. PVC cabling in high-temperature locations has degraded. Any wiring where the insulation resistance test results are marginal or declining.

Poor previous workmanship. Borrowed neutrals, cables run without adequate mechanical protection, junction boxes buried in insulation without being accessible, DIY modifications that bypass protective devices, or spurs taken from spurs.

Non-IP-rated fittings in bathrooms. Light fittings within zones that don’t have the correct IP rating for the location – a common finding in older properties where bathrooms have been refitted without the electrics being updated.

Damage and wear. Cracked or broken sockets and switches, damaged cable insulation, signs of overheating at connections, or evidence of rodent damage to cables.

How to Explain EICR Results to Customers

One of the most underrated skills in EICR work is the ability to explain results clearly. A landlord who gets an “unsatisfactory” report often panics – they hear “fail” and assume the whole house needs rewiring.

Here’s how to frame it:

Lead with what the codes actually mean. Explain that C1 is immediate danger (rare), C2 is “needs fixing soon” (the most common), and C3 is “advisory only.” Most customers don’t know the coding system.

Be specific about the work required. Don’t just hand over a report full of codes. Walk them through each observation in plain English: “You need RCD protection on your socket circuits – that means upgrading the consumer unit. Here’s what it’ll cost.”

Separate the urgent from the advisory. Make it clear which items they must fix (C1, C2, FI) and which are recommendations (C3). Customers appreciate knowing what’s legally required versus what’s nice to have.

Quote the remedial work before you leave. If you can give them a quote on the spot, you make the whole process easier for the customer – and you’re far more likely to get the follow-on work than if they shop around later.

Managing EICR Renewals and Remedial Work at Scale

If you’re running an electrical contracting business, EICR work is a reliable recurring revenue stream, meaning a job management platform with recurring job functionality becomes important. Landlords need inspections every five years. Commercial properties every three to five. Housing associations are ramping up for the May 2026 social housing deadline.

The challenge isn’t doing the inspections – it’s managing the admin. Which properties are due? Who’s been quoted for remedial work? Has the invoice been sent? Did the landlord get the paperwork?

That’s what Fergus handles.

Fergus is job management software built for trade businesses. It’s not an EICR certificate generator – you’ve got your own systems for that. What it does is manage everything around the inspection work:

Recurring job scheduling. Set up recurring jobs for each property on a five-year (or shorter) cycle. When the retest is due, it’s already in your calendar. No spreadsheets, no missed renewals.

Job cards with full history. Every property gets a digital job card with photos, notes, site hazards, previous observations, and customer details. When you go back in five years, all the context is there.

Quote remedial work from site. EICR turns up C2 issues? Build and send a professional quote while you’re still on site. Customer approves, it becomes a job in two clicks.

Invoice and get paid. Fergus pre-populates your invoice from the job card. With Fergus Pay, customers pay on site via card or QR code.

Team stays connected. Fergus Go gives your electricians their schedule, job details, and site notes from their phone.

UK electrical contractors like Waterlip Electrical Contracting have used Fergus to halve their admin time. For EICR work, especially – where you’re managing dozens of properties on rolling cycles – that kind of time saving compounds fast.

Want to see how it works? Start a free 14-day trial – no credit card needed.

Frequently Asked Question

How long does an EICR last?

An EICR doesn’t have a fixed expiry date. It includes a recommended retest interval set by the inspecting electrician. For private rented properties in England, the legal maximum is five years. For owner-occupied homes, the standard recommendation is every 10 years. For commercial and industrial properties, every 3–5 years, depending on use and risk.

Does an EICR expire?

Not technically – it’s a snapshot of the installation at the time of inspection. But it includes a recommended date for the next inspection. For landlords in England, an EICR must be renewed at least every five years under the 2020 Regulations. Letting an EICR lapse puts you in breach of the law.

What fails an EICR?

An EICR is classified as unsatisfactory when it contains C1 (danger present), C2 (potentially dangerous), or FI (further investigation) observation codes. C3 (improvement recommended) does not fail the report. The most common causes of failure are lack of RCD protection, inadequate earthing or bonding, outdated consumer units, and deteriorated wiring.

How long does a landlord have to fix a failed EICR?

In England, landlords must complete all remedial work within 28 days of receiving the unsatisfactory report, or sooner if specified. C1 items must be made safe immediately. Written confirmation of the completed work must be provided to tenants and, if requested, to the local authority. Fines of up to £30,000 can apply for non-compliance.

Can a C3 observation fail an EICR?

No. A C3 code means improvement is recommended, but the installation is safe for continued use. Only C1, C2, and FI codes result in an unsatisfactory report. However, multiple C3 observations may prompt the electrician to recommend a shorter retest interval.

Is a full re-inspection needed after remedial work?

Not always. In most cases, written confirmation from the electrician who did the remedial work is sufficient – typically a Minor Works Certificate or EIC, depending on the scope. A full new EICR is only needed if the work was extensive enough to warrant it or if the original inspector recommends one.

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