Commercial EICR in Dartford
Commercial EICR and fixed wire testing in Dartford — Electricity at Work Regulations 1989 compliance across Dartford.
For Dartford 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 Dartford 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 Dartford 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 Dartford
There’s no single statutory cycle for commercial EICRs the way there is for domestic landlord property — the duty-holder works to IET Guidance Note 3 and to whatever the insurer’s policy schedule requires. Most policy schedules across Dartford reference five-year intervals as standard, with shorter cycles where the building has higher inherent risk. What we see most often in Dartford is the renewal trigger — the insurer asks for a current certificate at the policy anniversary, the building’s last EICR is more than five years old, and we get called in to bring it back into date. Other common triggers: a new tenant on the lease, a CDM-flagged fit-out completion, a refurbished consumer unit that needs documenting against the new circuits.

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. Dartford Borough 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 Dartford property owners book CJA Electrical
CJA Electrical is based in Rochester and covers commercial work across the whole of Dartford from there. Dartford sits within the 40-minute working radius — close enough that scheduling around your trading hours and getting back for remedial work is a non-issue. The work is done by someone qualified to City & Guilds 2391 (Inspection & Testing) and 2382 (18th Edition Wiring Regulations), using calibrated test equipment, with reports produced in the standard BS 7671 format your insurer and managing agent recognise. No subcontracting — the person on site is the person signing the certificate.
How the work runs
The process from first call to delivered certificate is straightforward. Initial chat (phone or email) to confirm the premises type, circuit count, board count, and access constraints. A quote — fixed price where possible, otherwise capped — covering the testing itself. A scheduled testing visit, typically out-of-hours for retail and during business hours for office. Report supplied as a PDF within 48 hours of testing completing, formatted to BS 7671 with all observations coded. If anything is unsatisfactory, remedial work gets quoted separately so you can decide which observations to clear first. Once the remedials are done, the affected circuits are re-tested and a fresh certificate issued reflecting the post-remedial state of the installation.
What affects the price
Pricing is transparent: a fixed price for the inspection and report, separate quoting for any remedial work. The fixed price is set after a quick scoping conversation about the installation — circuit count, board count, three-phase or single-phase, any specialist equipment to handle. What the price includes: the on-site inspection, dead and live testing, schedule of test results, BS 7671-formatted report, PDF delivery within 48 hours. What’s separate: remedial work (quoted line-by-line against the report observations), any re-testing needed after remedials are completed, and any additional reports if the duty-holder wants the original split into board-specific certificates.
FAQs
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 Dartford 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 Dartford 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 Dartford 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, Dartford Borough Council, and any future buyer’s surveyor will expect to see.
Related services in Dartford
- EICR in Dartford
- Landlord EICR in Dartford
- Emergency in Dartford
- Alarms in Dartford
- Emergency Lighting in Dartford
- Outdoor Lighting in Dartford
Commercial EICR in nearby towns
- Commercial EICR in Longfield — Dartford
- Commercial EICR in Gravesend — Gravesham
- Commercial EICR in Northfleet — Gravesham
Frequently asked questions
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 Dartford 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 Dartford 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 Dartford 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, Dartford Borough Council, and any future buyer's surveyor will expect to see.
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