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.
Two things dominate consumer unit upgrades on a new-build in Aberdare: developer CU maxed out — no spare ways for an EV charger or garden feed, and no SPD retrofit, which the 2022 amendment now expects. Both are known variables on this stock, and both belong on the quote — not the invoice.
We work across CF44 weekly and see the same patterns street after street. That means the quote reflects real experience of this property type, not a template price.
New-Build House properties are a distinctive part of the Aberdare housing mix — ex-mining cottages in Trecynon and Cwmbach with original 1950s wiring, alongside 1980s semis in Aberaman, particularly around Trecynon & Cwmbach. We work on this stock weekly.
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.
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. ex-mining cottages in Trecynon and Cwmbach with original 1950s wiring, alongside 1980s semis in Aberaman — the new-build is a recognisable slice of that mix.
Beyond Aberdare itself, we regularly cover new-build work across Merthyr Tydfil, Mountain Ash, Pontypridd on the same fixed-price model — same materials, same certificate format.
Practical next step: photos of the utility room or garage or a 15-minute survey, fixed written quote back inside 24 hours, work booked around your add what the developer skipped. That's the whole process for a Aberdare new-build, on one page.
One local point of contact for new-build house work across Aberdare and the surrounding Merthyr Tydfil / Mountain Ash area — quote, work, certificate and after-care.
