Electrical Installation Condition Report (EICR): Cost, Process, and 5 Mandatory Tests

Key Facts About EICRs in 2026

An EICR can only be issued by a qualified electrical inspector with valid accreditation — not just a standard domestic installer. An inspection for a flat costs €205.90 to €308.90 and takes 2 to 4 hours. For residential properties, it is recommended to repeat this every 5 years, while commercial premises require one every 2 to 3 years. It is mandatory for building completion certificates, following a full rewire, during property sales, and as evidence for insurance claims.

What is an EICR and who can issue it?

An EICR (formerly known as a periodic inspection report) is a legally binding document confirming that the electrical installation meets current wiring regulations and is safe for continued use. It is issued exclusively by a qualified inspector with valid certification from a recognised body like Technical Inspection SR.

Important distinction: a registered electrician can install wiring, but they cannot necessarily certify it. An inspector must hold higher qualifications and should not sign off their own installation work to ensure independent oversight. Reputable firms usually have a contracted external inspector included in the project price. To see how inspection fits into your total budget, check our article on electrical installation costs by property size.

When is an EICR mandatory?

For new build completion — building control will not issue a final certificate without a valid report. For new builds, the internal flat wiring and the external LV service connection to the meter are inspected simultaneously.

Following a full rewire — any major intervention (consumer unit replacement, new circuits, replacing old aluminium wiring with copper) requires a new certificate. During a bathroom or kitchen renovation, the electrical certificate is a standard part of the handover.

When selling a property — mortgage lenders and surveyors increasingly demand a valid EICR. For insurance claims — if an electrical fire occurs and you lack a valid certificate, the insurer may significantly reduce the payout. For commercial premises — businesses are legally required to undergo regular inspections every 2 to 3 years.

Which 5 mandatory tests are included?

A professional inspection isn't just a visual check — the inspector performs 5 mandatory tests using calibrated instruments, recording the results in a schedule of test results.

Insulation Resistance Testing

This verifies that wire insulation hasn't degraded or been damaged. Low insulation resistance poses a risk of short circuits and fire — a typical issue with aluminium wiring over 40 years old. The minimum standard is 1 MΩ for circuits up to 500 V.

Continuity of Protective Conductors and Earthing

This checks the continuity of the protective earth (PE) from the consumer unit to every socket and appliance. A broken earth wire is the most dangerous fault — if an appliance fails, the casing remains live, posing a risk of fatal electric shock.

RCD (Residual Current Device) Testing

The inspector measures if the RCD trips the circuit within 30 milliseconds at 30 mA. RCDs are mandatory for all socket circuits and wet zones (bathrooms). A faulty RCD results in an immediate fail on the report.

Fault Loop Impedance Testing

This ensures that in the event of a short circuit, the circuit breaker trips fast enough. High impedance means the breaker might not trip in time, causing cables to overheat — common with long cable runs or poor connections in junction boxes.

Consumer Unit Inspection

Checking terminal tightness, circuit labelling, main switch functionality, and Surge Protection Devices (SPD) if installed. This also includes thermal or physical checks for signs of overheating under load.

How much does an EICR cost in 2026?

The price of an EICR for a flat ranges between €205.90 and €308.90 depending on the property size and number of circuits. A standalone inspection of the external LV service connection costs €186 to €279 — for new builds, both are usually done together to save on call-out fees.

Pricing is influenced by the number of circuits (more breakers mean more testing), the availability of existing diagrams (without them, the job takes longer), and the region — prices in major cities are typically 15 to 25% higher. Within a full price list for construction works, this is a small item that protects your largest investment — your property.

The Inspection Process Step-by-Step

Step one is the visual inspection and document review — the inspector will ask for existing wiring diagrams and previous reports. They visually check the consumer unit, sockets, switches, and visible cabling.

Step two is the actual testing — all 5 mandatory tests are performed circuit by circuit. In a standard 2-bedroom flat, testing takes 2 to 3 hours; larger homes with 20+ circuits can take half a day.

Step three is the report production — the EICR includes all test results, any observed defects categorised by severity, and a conclusion on whether the installation is 'Satisfactory'. You usually receive the report within 3 to 7 working days.

Common Mistakes to Avoid

The biggest mistake is hiring an electrician without the specific inspector accreditation. Such a report is legally void — building control and insurers won't accept it, meaning you pay twice. Always verify credentials against the national register.

The second mistake is inspecting without documentation. If you don't have diagrams (common in older flats), the inspector must trace circuits manually, increasing the price by 20 to 40%. When renovating, always request 'as-installed' drawings from your electrician.

The third mistake is an expired certificate — many owners forget the 5-year interval. In the event of an insurance claim with an expired report, payouts can be slashed. Set a reminder or ask your inspector for a notification.

How to choose an inspector?

Verify their accreditation in the official register, ask for a firm delivery date for the report (one week is standard), and compare 2 or 3 quotes — rates can vary by 40%. A local inspector is often best as they understand regional distribution network requirements and can assist with the administration for building control.

FAQ - Common Questions about EICRs

How much does an electrical report cost?

An EICR for a flat in 2026 costs €205.90 to €308.90, while an external service connection check costs €186 to €279. The price depends on the number of circuits and location.

How long is an EICR valid for?

For residential properties, 5 years is the recommended interval. For commercial spaces, it's 2 to 3 years. A new report is required after any major electrical work.

Who can issue an electrical certificate?

Only a qualified electrical inspector with valid professional accreditation. A standard domestic installer without specific testing credentials cannot issue the report.

What if the report identifies defects?

The inspector categorises them by severity. Urgent defects (missing RCD, broken earth) must be fixed immediately followed by a re-test. Minor observations can be addressed before the next scheduled inspection.

Do I need a certificate to sell my flat?

While not strictly mandatory by law for every sale, banks and surveyors almost always request it for the buyer's mortgage. A valid report also increases the value and credibility of your property listing.

Calculate the cost of an EICR for your property

This overview provides an indicative price range for 2026. The final cost depends on your property size and region. Before contacting an inspector, calculate an estimate using the Numiq online calculator. Get a real sense of market rates and a stronger negotiating position. Sign in to save your calculations for future reference.

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