Key Takeaways
- Commercial properties need an EICR every 3 years (offices/shops) or 5 years (industrial)
- Penalties for landlord non-compliance increased to £40,000 per breach in 2025
- C1 codes mean "danger present" and require immediate action
- EICR inspections are governed by the Electricity at Work Regulations 1989 and BS 7671
- Wire Now provides EICR inspections and remedial works across London, Hertfordshire, and Essex
How Often Does a Commercial Property Need an EICR?
Commercial properties need an Electrical Installation Condition Report (EICR) at regular intervals depending on the type of premises. Offices, shops, and restaurants should be tested every 3 years. Industrial premises every 5 years. These frequencies are recommended by BS 7671 (the IET Wiring Regulations) and enforced under the Electricity at Work Regulations 1989.
Higher-risk environments such as swimming pools, construction sites, or petrol stations may require annual inspections. If your building has had significant alterations or you've experienced electrical issues, an earlier inspection is advisable regardless of the standard schedule.
What Do the EICR Observation Codes Mean?
When an inspector identifies an issue, they assign an observation code that indicates the severity:
| Code | Meaning | Required Action |
|------|---------|-----------------|
| C1 | Danger present | Immediate remedial action required — the inspector may disconnect the circuit |
| C2 | Potentially dangerous | Urgent remedial action required as soon as practicable |
| C3 | Improvement recommended | Not immediately dangerous but should be improved |
| FI | Further investigation | Additional investigation required to determine the extent of the issue |
A property with C1 or C2 observations will receive an "unsatisfactory" EICR result. Remedial work must be completed and verified before a satisfactory certificate can be issued.
What Are the Penalties for Non-Compliance?
The financial and legal consequences of EICR non-compliance are significant:
For landlords: The maximum financial penalty for breaches increased from £30,000 to £40,000 per offence in 2025. Local authorities can issue these penalties without going through the courts.
Insurance implications: An outdated or missing EICR can invalidate your building insurance. If an electrical incident occurs and you cannot produce a current satisfactory report, your insurer may refuse to pay out.
Business disruption: A C1 observation can result in immediate disconnection of affected circuits, potentially shutting down critical business operations until remedial work is completed.
Personal liability: Under the Electricity at Work Regulations, duty holders (building owners, employers, facilities managers) have a personal legal duty to maintain electrical installations in a safe condition.
What Does an EICR Inspection Involve?
An EICR is a thorough examination of the fixed electrical installation in a building. The inspection covers:
- Consumer units and distribution boards — condition, labelling, RCD protection
- Wiring — type, condition, adequacy for current load
- Earthing and bonding — continuity, adequacy
- Socket outlets and switches — condition, polarity
- Lighting circuits — condition, protective devices
- External installations — outdoor lighting, signage circuits
The inspector will carry out visual checks, electrical testing with calibrated instruments, and sampling of circuits. For a commercial property, this means testing a representative sample of circuits across the building.
How Long Does a Commercial EICR Take?
The duration depends on the size and complexity of the installation:
- Small office or retail unit (single consumer unit): Half a day
- Medium commercial property (multiple distribution boards): 1–2 days
- Large industrial premises (complex distribution network): 2–5 days
Testing is normally carried out during business hours, though some circuits may need to be isolated temporarily. Wire Now works with facilities managers to schedule inspections with minimal disruption.
How Much Does a Commercial EICR Cost?
EICR costs for commercial properties vary based on several factors:
- Size of the premises — larger buildings with more circuits take longer to inspect
- Number of distribution boards — each board and its associated circuits must be tested
- Age and condition of the installation — older installations may require more extensive testing
- Access constraints — restricted access areas (ceilings, risers, plant rooms) can add time
For an accurate quote, Wire Now offers free site surveys to assess the scope of work before providing a fixed price.
Book Your EICR with Wire Now
Wire Now is an NICEIC-approved contractor providing EICR inspections and remedial works across London, Hertfordshire, and Essex. We deliver clear reports, prioritised remedial recommendations, and can carry out any required upgrades as part of the same contract.
Part of our [Commercial Compliance Guide](/blog/commercial-fire-electrical-compliance-guide-2026) series.
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