modern cavity construction, service voids designed in, plasterboard on dabs. Service voids and pre-planned cable routes make additions straightforward — but the developer board is often the bottleneck.
New-build CUs are compliant but full — the fix is usually a spare-way add and an SPD retrofit, not a swap.
If you own a new-build in Caerphilly and need consumer unit upgrades, the right spec is usually not the most expensive one. On this stock the sensible answer is spare-way CU add — matched to the wiring generation, not a lift-and-shift from a new-build brochure.
That is the standard we quote to. Fixed price, honest survey, SPD retrofit inside the existing enclosure, and paperwork the next EICR won't question.
New-Build House properties are a distinctive part of the Caerphilly housing mix — new-build estates in Bedwas, traditional valley terraces in Senghenydd, and detached homes towards Abertridwr, particularly around Senghenydd & Abertridwr. We work on this stock weekly.
Focus on the utility room or garage, the consumer unit location, and the intended cable route. Usually 15–30 minutes on-site or a short photo set.
Priced against your new-build's specific construction, not a template. Route sketched, materials listed, no line-item surprises.
Diary planned for the access constraint that matters on this stock — service voids and pre-planned cable routes make additions straightforward — but the developer board is often the bottleneck.
NICEIC certificate, photo evidence of hidden work, Part P where applicable — all emailed the evening the job signs off.
spare-way CU add; SPD retrofit inside the existing enclosure; OCPP-compliant charger onto the developer stub. All on the written quote.
Almost never. A spare-way add on the side of the existing board plus an SPD retrofit covers 90% of new-build enquiries.
Two things: developer CU maxed out — no spare ways for an EV charger or garden feed, and the wiring generation — current — often 17th or 18th Edition compliant at handover but with no headroom. Both go on the quote, not the invoice.
Not unless the quote says so. On period stock in particular we route through floors, lofts and non-original plaster; cornices, dado rails and original panelling stay intact.
Common enough that we work on this stock most weeks. new-build estates in Bedwas, traditional valley terraces in Senghenydd, and detached homes towards Abertridwr — the new-build is a recognisable slice of that mix.
Service voids and pre-planned cable routes make additions straightforward — but the developer board is often the bottleneck.
Wiring generation on this stock is typically current — often 17th or 18th Edition compliant at handover but with no headroom. On a new-build you should expect us to flag: developer CU maxed out — no spare ways for an EV charger or garden feed; no SPD retrofit, which the 2022 amendment now expects; EV cable stub left by the developer that terminates at an isolator, not a working charger.
Materials and methods we spec on new-build house work: spare-way CU add; SPD retrofit inside the existing enclosure; OCPP-compliant charger onto the developer stub. Everything is priced on the quote — nothing added on invoice.
Beyond Caerphilly itself, we regularly cover new-build work across Cardiff, Newport, Ystrad Mynach on the same fixed-price model — same materials, same certificate format.
Bottom line: new-build house owners in Caerphilly deserve a quote calibrated to post-2005 construction, not a template. That's what we do, on every job.
Send the address, a photo of the utility room or garage and the consumer unit, and the add what the developer skipped you're working towards. Written fixed quote back inside 24 hours, priced to the actual construction of your new-build.
