Office trunking and twin sockets in a commercial fit-out tested by CJA Electrical

For Medway business owners, building managers, and commercial landlords, the EICR is the piece of paper that closes the loop on the Electricity at Work Regulations 1989. CJA Electrical does the inspection, the test schedule, and (separately, if needed) the remedial work to clear observations. Most Rainham commercial jobs are scheduled outside trading hours so the testing doesn’t disrupt the business.

What Commercial EICR actually is

Fixed wire testing — to use the term most commercial clients in Rainham are familiar with — is a periodic inspection and test of every circuit in the building’s fixed installation. The inspection has two parts: a visual survey of the consumer unit, distribution boards, and accessible accessories, then dead and live electrical testing on each circuit (continuity, insulation resistance, polarity, earth fault loop, RCD operation). What lands on the report is a formal opinion of whether the installation is satisfactory or unsatisfactory against BS 7671, with each observation coded so the duty-holder knows what’s urgent and what isn’t. C1 means immediate danger, C2 potentially dangerous, C3 improvement recommended, FI further investigation required.

When you need Commercial EICR in Rainham

The standard inspection cycle for commercial premises follows IET Guidance Note 3. For most Rainham offices, retail units, and small workshops that’s five years. Industrial premises, educational buildings, and laboratories typically run on a three-year cycle. Higher-risk environments — cinemas, theatres, swimming pools, petrol stations, places of public assembly — sit on annual inspection. Beyond the periodic cycle, an EICR is commissioned at change of occupancy (new tenant taking over a unit), after major refurbishment, after a known fault or insurance claim, and on insurance request at policy renewal. We’ve also done a few in Rainham where a sale is in progress and the buyer’s surveyor has flagged the electrics for further investigation.

Multi-occupancy meter cupboard with separate consumer units and smart meters
Multi-occupancy meter cupboard with separate consumer units and smart meters

Standards and what compliance looks like

BS 7671 is the technical standard for the work itself — what “satisfactory” looks like, what gets tested, the tolerances on each test, the format of the report. The Electricity at Work Regulations 1989 is the law that says the duty-holder must keep the installation safe and provides the framework for prosecution if they don’t. Together they’re the framework Rainham duty-holders work within. The current edition of BS 7671 is the 18th Edition with Amendment 2 (2022); any EICR signed off after January 2023 should reference that. Reports referring to older editions of BS 7671 are still technically valid for the cycle they were issued in but should be re-tested to current standards on the next inspection.

Testing schedule and remedials

The testing itself splits into dead testing (with the circuit isolated) and live testing (with the supply restored). Dead tests cover continuity of protective conductors, insulation resistance between live and earth, polarity, and ring final continuity on sockets. Live tests cover earth fault loop impedance and RCD operation. Each circuit gets recorded individually on the schedule of test results that accompanies the certificate. On a typical Rainham commercial installation, the testing takes anywhere from half a day for a small office to two or three days for a multi-board industrial unit. We schedule the work around your trading hours — most offices and workshops can be done outside business hours, and retail units are usually best done early morning before opening.

Main service fuse, cutout and smart meter on the incoming supply
Main service fuse, cutout and smart meter on the incoming supply

Why Rainham property owners book CJA Electrical

We work with commercial clients across Rainham the same way we work with domestic clients: same-day quotes, clear communication on what the inspection involves, transparent pricing, and a written report inside 48 hours. The difference on commercial is just the scheduling — most jobs run outside trading hours or in phased blocks during quieter periods. Reports are formatted to the standard BS 7671 template that insurers, managing agents, and HSE inspectors expect. Remedial work — if the report is unsatisfactory — is quoted separately so the duty-holder can plan the budget and prioritise C1 and C2 observations first.

How the work runs

First contact: a five-minute call to scope the premises. We need to know roughly what the installation looks like — number of distribution boards, three-phase or single-phase, number of circuits, whether there’s any specialist equipment (server rooms, plant, kitchens) that needs handling carefully. Most quotes go out within 24 hours of the initial call. Booking: testing scheduled around your hours. Most Rainham offices are tested outside business hours; retail units are usually done early morning or evenings; workshops and industrial premises are sometimes done in phased blocks weekend-by-weekend if the building can’t shut down at all. Reporting: PDF within 48 hours, formatted to BS 7671 Appendix 6, with the schedule of test results, schedule of inspections, and observations all in the standard format insurers and managing agents expect to see.

What affects the price

Commercial EICR pricing is driven by the size of the installation — number of circuits, number of distribution boards, total accessory count — and the access conditions. Most Rainham office EICRs come in as a fixed price after a five-minute scoping call. Industrial premises and multi-board commercial often need a brief site visit before the quote firms up. What’s included in the quote: the inspection, the testing, the written report formatted to BS 7671. What’s quoted separately: any remedial work needed to clear C1 or C2 observations after the report. We don’t bundle remedials into the inspection price — keeping them separate means the duty-holder can shop the remedial quote against other contractors if they want to.

FAQs

How often does a commercial EICR need doing?

IET Guidance Note 3 is the reference. Five years is standard for offices, retail, and most small commercial in Rainham. Three years for industrial, educational, and most workshop premises. One year for higher-risk environments — cinemas, swimming pools, places of public assembly. The duty-holder can shorten these intervals based on risk assessment, and most insurers require evidence the building is on cycle.

What law requires a commercial EICR?

The Electricity at Work Regulations 1989. Regulation 4(2) makes the duty-holder responsible for keeping the installation safe and maintained, and Regulation 16 makes the employer responsible for ensuring competent persons do the testing. The EICR is the standard documentary evidence of compliance with both. Insurers commonly require it as a condition of policy.

Can testing be done out of hours so we don’t shut the business?

Yes. Out-of-hours testing is the default for retail units, restaurants, and most Rainham commercial premises. We can also phase the testing across multiple visits if the building can’t sustain a single block. Tell us when you’re closed (or quietest) and we’ll plan the work to fit.

What’s a sampling EICR and is it appropriate for our building?

Sampling is when the duty-holder specifies a percentage (often 10–20%) of circuits and accessories to be tested rather than 100%. The remaining circuits are visually inspected only. The sample is documented on the report and the duty-holder accepts responsibility for the un-tested portion. Appropriate for large, low-risk premises on tight inspection cycles. For most Rainham commercial, full testing is the right call.

Who’s legally responsible — landlord or tenant?

Depends on the lease. In a typical full-repairing-and-insuring (FRI) commercial lease the tenant carries the duty for the installation within the demise. In shorter leases the landlord usually retains the duty. For multi-tenanted buildings, the landlord normally holds the duty for shared common parts and main supply. We can read the lease with you on a quick call and clarify who needs to commission the EICR.

How long does a commercial EICR take?

Half a day for a small Rainham office (single board, ~20 circuits) up to two or three days for a multi-board industrial unit. Premises that need phased testing across weekends will take longer in calendar time but the same total testing hours. We give a realistic estimate at quoting stage based on the circuit count and access conditions.

What happens if the report comes back unsatisfactory?

Unsatisfactory just means the inspection has flagged C1 or C2 observations — items that need putting right to bring the installation back to compliance. The report lists each item, and CJA Electrical can quote separately for the remedial work. Once the remedials are done, the affected circuits are re-tested and a fresh, satisfactory certificate is issued.

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Frequently asked questions

How often does a commercial EICR need doing?

IET Guidance Note 3 is the reference. Five years is standard for offices, retail, and most small commercial in Rainham. Three years for industrial, educational, and most workshop premises. One year for higher-risk environments — cinemas, swimming pools, places of public assembly. The duty-holder can shorten these intervals based on risk assessment, and most insurers require evidence the building is on cycle.

What law requires a commercial EICR?

The Electricity at Work Regulations 1989. Regulation 4(2) makes the duty-holder responsible for keeping the installation safe and maintained, and Regulation 16 makes the employer responsible for ensuring competent persons do the testing. The EICR is the standard documentary evidence of compliance with both. Insurers commonly require it as a condition of policy.

Can testing be done out of hours so we don't shut the business?

Yes. Out-of-hours testing is the default for retail units, restaurants, and most Rainham commercial premises. We can also phase the testing across multiple visits if the building can't sustain a single block. Tell us when you're closed (or quietest) and we'll plan the work to fit.

What's a sampling EICR and is it appropriate for our building?

Sampling is when the duty-holder specifies a percentage (often 10–20%) of circuits and accessories to be tested rather than 100%. The remaining circuits are visually inspected only. The sample is documented on the report and the duty-holder accepts responsibility for the un-tested portion. Appropriate for large, low-risk premises on tight inspection cycles. For most Rainham commercial, full testing is the right call.

Who's legally responsible — landlord or tenant?

Depends on the lease. In a typical full-repairing-and-insuring (FRI) commercial lease the tenant carries the duty for the installation within the demise. In shorter leases the landlord usually retains the duty. For multi-tenanted buildings, the landlord normally holds the duty for shared common parts and main supply. We can read the lease with you on a quick call and clarify who needs to commission the EICR.

How long does a commercial EICR take?

Half a day for a small Rainham office (single board, ~20 circuits) up to two or three days for a multi-board industrial unit. Premises that need phased testing across weekends will take longer in calendar time but the same total testing hours. We give a realistic estimate at quoting stage based on the circuit count and access conditions.

What happens if the report comes back unsatisfactory?

Unsatisfactory just means the inspection has flagged C1 or C2 observations — items that need putting right to bring the installation back to compliance. The report lists each item, and CJA Electrical can quote separately for the remedial work. Once the remedials are done, the affected circuits are re-tested and a fresh, satisfactory certificate is issued.

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