Commercial EICR in Sevenoaks

CJA Electrical does commercial EICR and fixed wire testing across Sevenoaks and the wider Sevenoaks area. The legal framework for commercial premises is the Electricity at Work Regulations 1989 — and the EICR (also called fixed wire testing or periodic inspection) is the standard documentary evidence that the duty-holder is meeting that obligation. Whether you’re an office tenant, a retail unit operator, or a building owner with multi-tenanted commercial property, the inspection runs out of our Rochester base.

What Commercial EICR actually is

A commercial EICR is a periodic inspection and test of the fixed wiring in a commercial premises — the distribution board, sub-circuits, sockets, lighting, and fixed equipment connections. It’s the same fundamental process as a domestic EICR, but typically covers larger installations, three-phase supplies, and the kind of building services (emergency lighting interface, fire alarm interface, plant equipment) that don’t appear in residential. The output is a written report against BS 7671 with observation codes (C1, C2, C3, FI) on anything that doesn’t meet the regulations, plus a schedule of test results documenting what was actually measured. The duty-holder uses the report to plan remedial work and demonstrate compliance.

When you need Commercial EICR in Sevenoaks

The standard inspection cycle for commercial premises follows IET Guidance Note 3. For most Sevenoaks 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 Sevenoaks where a sale is in progress and the buyer’s surveyor has flagged the electrics for further investigation.

Standards and what compliance looks like

Fixed wire testing is governed by BS 7671 — the IET Wiring Regulations — which sets the technical requirements for what gets tested and to what tolerances. The legal duty to actually do the testing comes from the Electricity at Work Regulations 1989, specifically Regulation 4(2) (maintenance of electrical systems to prevent danger) and Regulation 16 (employer’s duty to ensure competent persons do the work). The inspection criteria, frequency guidance, and the format of the written report all follow IET Guidance Note 3. Sevenoaks District Council and the HSE both reference Guidance Note 3 in their compliance expectations for commercial premises.

Testing schedule and remedials

Each circuit is tested in turn. Dead testing — with the circuit isolated — covers continuity of protective and bonding conductors, insulation resistance, polarity, and (for ring finals) ring continuity. Live testing — with the supply restored — covers earth fault loop impedance, prospective fault current, and RCD operating times. Every measurement is recorded on a schedule of test results and lodged with the certificate. Findings are recorded against observation codes (C1, C2, C3, FI) with a note against each. The summary on the front of the certificate gives an overall verdict — satisfactory or unsatisfactory — based on whether any C1 or C2 observations are present. C3 observations alone don’t make a report unsatisfactory; they’re recommendations rather than failures.

Why Sevenoaks property owners book CJA Electrical

Most of the commercial EICR work in Sevenoaks comes from existing relationships — letting agents we’ve done landlord EICRs for who also manage commercial property, building owners we’ve upgraded consumer units for, businesses where we’ve done a domestic EICR on the director’s home and they’ve asked us to do the office at the same time. Word-of-mouth in a town this size builds the business steadily and means the work is done by someone with a reputation to protect. Operationally, the things that matter on commercial — phased testing during trading, reports in the format insurers and managing agents expect, separate quoting for remedials — are all covered as standard.

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 Sevenoaks 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

The two factors that drive Sevenoaks commercial EICR pricing are circuit count (more circuits = more testing time) and access (does the building need shutting down, can it be tested in phases, are there specialist areas like server rooms or plant rooms that need careful handling). Out-of-hours testing carries a small premium reflecting the late-evening or weekend working. Premises with single distribution boards and good access — most small offices and retail units — are quoted as a fixed price. Larger premises with multiple boards or specialist equipment get a capped quote based on a brief pre-visit scope.

FAQs

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 Sevenoaks 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.

Will the testing damage anything?

No. The tests are non-destructive — insulation resistance and earth fault loop are low-current measurements that don’t stress the installation. The most disruptive part is the brief power cuts during dead testing, which is why we schedule around operations. We do power-down sensitive equipment (servers, control systems) properly before testing the circuits that feed them, and we coordinate with you on anything that can’t be cleanly isolated.

Do you handle three-phase installations?

Yes. Three-phase is normal on commercial Sevenoaks premises with higher load — workshops, larger offices with mechanical plant, industrial units. Test equipment, methodology, and reporting formats are the same as single-phase but with phase-specific readings recorded on the schedule.

What documentation do I get at the end?

The Electrical Installation Condition Report itself (front page with verdict, schedule of inspections, schedule of test results, list of observations) as a single PDF. We can split it into board-specific certificates if you need separate documents for individual tenants in a multi-tenanted building. The PDF is what your insurer, Sevenoaks District Council, and any future buyer’s surveyor will expect to see.