Commissioning an EICR before a renovation is the single cheapest way to avoid a six-figure surprise after the plasterboard goes up. A pre-build inspection identifies hidden faults — undersized ring finals, missing earth bonding on extended kitchens, aluminium tails, AC-only RCDs incompatible with planned EV chargers — while the existing finishes can still be lifted cheaply.
We carry out pre-renovation EICRs from £89.99 with same-day NICEIC certification and an optional renovation electrical plan consultation: a written brief sized for your architect, builder and Part P notifier. The plan distinguishes between full rewire, partial rewire by zone, and consumer-unit-only upgrade — so the tender comes back accurate.
Why Electrician London
Hidden-fault identification
Pre-build is the only chance to find faults behind sound finishes cheaply. Aluminium tails, undersized ring finals, missing earth bonding — flagged before the build budget is committed.
Part P guidance
We confirm which planned circuits need Part P notification (any work in a 'special location' or a new circuit), and which fall under non-notifiable maintenance. Saves the builder a notifier fee where it isn't needed.
Architect-friendly report
Report formatted for the design team — circuit schedule, consumer unit load assessment, and a clean rewire-vs-partial recommendation. Goes straight into the tender pack.
Cost-saving early detection
A £89.99 EICR before the build prevents the most common renovation surprise — a £4,000 mid-project rewire because the existing installation cannot carry the new load. Cheapest insurance you will ever buy.
Pre-renovation EICR pricing
Standard residential pricing. Add the renovation electrical plan consultation for architects and builders.
1–2 bedroom flat or house
£89.99
3–4 bedroom house
£99.99
5 bedroom house
£110.99
Renovation electrical plan consultation
Written brief: rewire vs partial vs consumer-unit-only, Part P advisory, EV charger and heat pump pre-install scope
£150
Bundle EICR + renovation plan
Save £40 on the combined visit
£199.99
What's covered in a pre-renovation EICR
- Full BS 7671:2018 + A4:2026 inspection
- Consumer unit load assessment for the new build
- Type A RCD compliance check (for EV, heat pump, induction loads)
- Earth bonding inspection (kitchen, bathroom, services)
- Hidden-route fault identification (cable behind finishes)
- Architect-friendly PDF report
- Part P advisory (notifiable vs non-notifiable scope)
- Same-day digital NICEIC certificate
- Clear rewire-vs-partial recommendation
- No upfront payment — pay on report
Frequently asked questions
When does Part P apply to my renovation?
Part P of the Building Regulations applies to any electrical work in a special location (bathroom, kitchen) and any new circuit installation anywhere in the dwelling. Adding sockets to an existing circuit, replacing accessories like-for-like, and like-for-like consumer unit replacement are non-notifiable. We confirm the scope in writing before the build so the builder knows when a Part P notifier is required.
When does the EICR recommend a full rewire vs partial?
Full rewire is recommended when the existing installation has aluminium tails, rubber-insulated cabling, no earth on the lighting circuit, or a consumer unit predating the 16th edition (pre-1992). Partial rewire by zone is appropriate where one zone (typically the kitchen or a new extension) needs to carry a new load but the rest of the installation tests clean. The report makes that call explicit.
I want to swap all the lighting to LED — does that need a circuit upgrade?
Usually no. LED loads are a fraction of the original halogen or filament load, so the existing lighting circuit has substantial headroom. However, the existing dimmer and any AC-only RCD may need replacing — many older dimmers buzz or flicker on LED, and certain LED drivers carry DC fault current that Type AC RCDs cannot detect. We code that as C3 on the report.
Are you adding an EV charger? What's the pre-install scope?
An EV charger needs a dedicated radial circuit, an RCD with DC fault detection (Type A as a minimum, or Type AC plus an RDC-DD device per OZEV grant terms), and main fuse / DNO capacity headroom of 7.4 kW minimum. We assess all three at the EICR and flag any need for a main fuse upgrade (which is a DNO request, not an electrician job) before the charger is ordered.
I'm planning a heat pump — does the EICR cover that?
The EICR confirms the existing installation can carry the heat pump load — typically 4–6 kW additional, which most modern installations handle but older 60A main fuses sometimes cannot. We assess main fuse rating, consumer unit capacity, and consumer-unit-to-heat-pump cable route. The report flags any DNO main fuse upgrade required before the heat pump is commissioned.
Does a pre-renovation EICR satisfy the post-renovation certification requirement?
No. After the renovation, the electrician carrying out the new work issues an Electrical Installation Certificate (EIC) or a Minor Works Certificate for the work they did. The pre-renovation EICR is a survey of the existing installation — it informs the renovation scope but does not replace the post-build EIC. Both documents are normally retained in the property file.
Related services
NICEIC engineers, same-day across London.
Director-led, no call-centre. Same-day digital certificate, no upfront payment.
Call 020 3633 5557