RCD and loop impedance testing in progress on a domestic circuit

Developer compliance for electrical work splits into two streams. New installations — circuits added during build, refurb, or conversion — produce an Electrical Installation Certificate (EIC) at commissioning. Existing installations being inspected periodically produce an EICR. We work with Tonbridge developers on both: EIC for new work signed off as it goes in, EICR on existing installations inherited through purchase or returned to service after refurb.

What an EICR involves for Developer

A developer EICR follows the same regulatory standard as any domestic EICR (BS 7671:2018+A2:2022) but is most often commissioned in one of three contexts: ahead of a refurbishment to document the starting condition; after refurbishment of a pre-existing installation, where the existing wiring has been adapted but not replaced; or as periodic inspection on a phased development whose earlier phases are already occupied. New circuits don’t get an EICR — they get an EIC at commissioning. We do both, with the right document for the right job.

When you need this in Tonbridge

Developers come to us for EICR work in a handful of recurring patterns: pre-purchase due diligence on properties being acquired for refurb; snagging-stage inspection where an existing installation has been kept and needs final sign-off; periodic inspection on the early phases of a multi-phase development that have entered service; and change-of-use work where an existing installation needs assessment before being adapted to new use. The trigger varies; the inspection itself is consistent.

Smaller domestic consumer unit with each circuit clearly labelled
Smaller domestic consumer unit with each circuit clearly labelled

What the report contains

Standard three-part EICR deliverable: form, schedule of inspection, schedule of test results. For phased developments, we’ll commonly supply a plot-by-plot summary alongside the individual reports so the developer’s project tracker has a single overview document. Where new circuits sit alongside retained wiring, we’ll issue the appropriate EIC for the new work in addition to the EICR for the retained installation. Two documents, two purposes.

Why book CJA Electrical for your Tonbridge EICR

For developer work, the value is in getting the documentation right. EIC where it should be an EIC, EICR where it should be an EICR, all formatted correctly for Building Control sign-off and for the eventual buyer’s solicitor. CJA Electrical works to BS 7671:2018+A2:2022 with a City & Guilds 2391 qualified inspector, fully insured, ten years on Tonbridge and Malling projects. Reports back within 48 hours of testing; remedial quotes attached where needed.

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

How the inspection runs

  1. Project scope conversation — what’s being inspected, where it sits in the project programme, what other trades are on site 2. Quote with appointment options that fit the project programme 3. On-site inspection — coordinated with the site manager or principal contractor as needed 4. Written report (PDF) supplied within 48 hours 5. Where new circuits are involved, EIC issued separately at commissioning 6. Remedial work quoted alongside any unsatisfactory findings; re-test on completion

What affects the price

No standard rate card for developer work — the variability between projects is too high. We’ll quote on receipt of the scope (number of dwellings, refurb vs new vs mixed, programme dates, access constraints) and the price is fixed at that point.

FAQs

When during a refurb do I need an EICR vs an EIC?

Existing wiring being kept and adapted as part of a refurbishment is the EICR domain — the report documents the condition of what’s being retained. New circuits added during the refurbishment get their own EIC at the point they’re commissioned. A typical refurb often produces both documents — EICR for the retained installation, EIC for the new circuits.

What’s the difference between a Minor Works Certificate and an EICR?

A Minor Works Certificate (MWC) is issued for small additions to an existing installation that don’t constitute a new circuit — for example, adding an extra socket on an existing ring main. The MWC documents the modification and confirms it doesn’t compromise the installation’s safety. An EICR is a full periodic inspection of every accessible part of the installation; the two cover very different scopes.

Do you handle EIC issuance alongside EICR work on a project?

Yes. Most developer projects mix retained and new installation work. We’ll issue the EICR for the retained sections and EICs for the new circuits, with both documents formatted for Building Control sign-off and for the eventual buyer’s conveyancing. Single point of contact for both, single project invoice.

Can you work alongside other trades on a live site in Tonbridge?

Yes. Most of our developer work happens on live sites with other trades present. We coordinate with the site manager or principal contractor to fit the inspection slot into the wider programme, and we work to the site’s H&S and access protocols. Tonbridge sites are reached from our Rochester base in around 55 minutes.

Do you supply documentation in a format Building Control accepts?

Yes. EICs and EICRs follow the standard BS 7671 formats that Building Control bodies accept across England. Standard three-part EICR PDF — form, schedule of inspection, schedule of test results — and standard EIC for new circuits with the matching schedule of test results.

Developer EICR in nearby towns

EICR for other audiences in Tonbridge

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EICR detail (helps with the quote)

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