Full RCBO consumer units, AFDD on bedroom circuits, Type 2 surge protection, metal enclosure — every install fully compliant with BS 7671:2018+A2:2022 (18th Edition Amendment 2). Notified to Building Control through our NAPIT registration. From £550 + VAT @ 20%.
07889 334849 · Dan Stevens
NAPIT
CHAS
City & Guilds
TrustMark
Part P
BS 7671A failing consumer unit usually gives you warning. Some signs are nuisance-level — one of them means you should call an electrician today, not next week. If any of these apply to your property, book a £99 health check or call us straight away.
Ceramic holders with thin wire strung across them. Pre-1990s technology, no RCD protection, no defence against an earth fault. Failed at every modern EICR.
Since January 2016 (Amendment 3) all new domestic boards must be non-combustible — typically steel. Plastic enclosures can melt and ignite during a fault.
Persistent tripping is the board telling you something is leaking to earth. It might be one circuit, one appliance, or general degradation — all of it needs investigating, not ignoring.
Loose terminations cook the bus-bar. Discolouration, warmth or a brown halo around a breaker means a connection is degrading and pulling current through resistance.
This is the one. Switch off at the main, get out of the cupboard, ring us. A burning smell means insulation has failed somewhere — book today, not next week.
Surveyors, lenders and letting agents flag old boards instantly. Upgrading before going to market protects the deal and the price.
Real DS Electrical install — Wells, Somerset. Dual-RCD board, labelled, tested, certified.
Final price depends on circuit count, access and any remedial work identified on the day. Survey is free, written quote is fixed. £99 health check is credited against any upgrade you go ahead with.
From a single dual-RCD changeover in a Wells flat through to a three-phase distribution board for a Frome workshop — same testing standard, same certification pack, same NAPIT lodgement. One contractor for every board on the property.
RCBOs disconnect a faulted circuit in milliseconds. AFDDs catch arc faults — the leading cause of electrical fires — before they ignite. SPDs absorb grid surges. Modern protection is an order of magnitude better than a 1990s rewireable fuse.
Landlords need a satisfactory EICR every 5 years (Electrical Safety Standards PRS England 2020). New boards must be metal-enclosed (Reg 421.1.201). Notifiable under Part P — we lodge with Building Control automatically through NAPIT.
Buildings insurers, mortgage lenders and chartered surveyors flag old boards instantly. A compliant board with a current EIC removes a deal-killer at sale, satisfies lender conditions, and protects an insurance claim if the worst happens.
Typical domestic consumer unit upgrades start at from £550 + VAT for a small flat or bungalow, from £750 + VAT for an average 3-bedroom house, and from £1,200 + VAT for a larger property requiring AFDD on bedroom circuits, surge protection, and full re-bonding. Final price depends on circuit count, access, and any additional work identified during the on-site survey. Every job is priced individually after a free survey — written quote, no hidden extras.
There is no blanket retrospective requirement — but if your installation is dangerous (rewireable fuses, no RCD protection, plastic enclosure with degraded breakers) it will fail an EICR. Landlords must hold a satisfactory EICR every 5 years under the Electrical Safety Standards (PRS England) Regulations 2020. Most insurers and mortgage lenders also require a compliant board as a condition of cover. Any new board we fit is notified to Building Control under Part P through our NAPIT registration.
A full upgrade includes: a metal-enclosed consumer unit (Reg 421.1.201), an RCBO on every circuit so one fault only takes out one circuit, AFDD (Arc Fault Detection Devices) on bedroom socket circuits per BS 7671 18th Edition Amendment 2 (2022), a Type 2 Surge Protection Device, full main earthing and bonding upgrade if required, every circuit tested and recorded, an EICR before and after, an Electrical Installation Certificate, and Part P notification to your local Building Control via NAPIT.
A typical domestic consumer unit changeover takes one full day on site. We isolate the supply at the cut-out, label and disconnect every circuit, install the new board, reterminate, test every circuit (continuity, insulation resistance, earth fault loop impedance, RCD timing), energise, and issue the certificate pack. Larger properties or those needing remedial work on bonding, earthing or final circuits may take 1.5–2 days.
Yes. Every upgrade comes with a full certification pack: pre-works EICR, Electrical Installation Certificate (EIC) for the new board, schedule of test results, schedule of inspections, and Part P notification lodged with your local Building Control through NAPIT. The certificate is dated, signed, and traceable on the NAPIT national database — accepted by insurers, mortgage lenders, letting agents and commercial compliance officers.
For non-urgent jobs, book the £99 health check or send us photos of your board. For anything that smells, sparks or buzzes — switch off at the main and ring us straight away.
07889 334849