cavity brick with plasterboard finishes, concrete lintels. Good loft access, generous under-floor voids and a straightforward driveway make the physical work easy; the variable is always the CU generation.
If you own a post-war semi in Cardiff and need consumer unit upgrades, the right spec is usually not the most expensive one. On this stock the sensible answer is metal-clad 18th Edition CU with RCBO per circuit — 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, and paperwork the next EICR won't question.
Focus on the hallway 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 post-war semi'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 — good loft access, generous under-floor voids and a straightforward driveway make the physical work easy; the variable is always the cu generation.
NICEIC certificate, photo evidence of hidden work, Part P where applicable — all emailed the evening the job signs off.
Across CF10–CF24 the post-war semi stock we've worked on shares consistent patterns: kitchen refit added post-rewire, socket circuit no longer matches the original ring layout. That local pattern is baked into the quote, not discovered on the day.
Good loft access, generous under-floor voids and a straightforward driveway make the physical work easy; the variable is always the CU generation.
Wiring generation on this stock is typically rewired 1990s–2010s; kitchen and bathroom often updated separately with mixed board vintages. On a post-war semi you should expect us to flag: kitchen refit added post-rewire, socket circuit no longer matches the original ring layout; bathroom shower feed on a 6mm radial with an isolator hidden above the ceiling; outside tap or outside socket added on a spur without RCD protection.
Materials and methods we spec on post-war semi work: metal-clad 18th Edition CU with RCBO per circuit; SPD retrofit; shower feed uprated to 10mm where the run length demands it. Everything is priced on the quote — nothing added on invoice.
Owners of post-war semi properties in Cardiff, Penarth and the wider area get one point of contact for the lot — quote, work, certificate, after-care.
Good loft access, generous under-floor voids and a straightforward driveway make the physical work easy; the variable is always the CU generation. We mark the route at survey and price against it.
A CU swap is usually enough. We test every circuit at survey and only recommend rewiring where the readings genuinely justify it.
No — surveys for Cardiff post-war semi enquiries are free. You only pay once the fixed-price scope is agreed.
For a post-war semi usually yes — a 15-minute survey or a set of photos of the hallway or garage and the consumer unit is enough to write a fixed price.
metal-clad 18th Edition CU with RCBO per circuit; SPD retrofit; shower feed uprated to 10mm where the run length demands it. All on the written quote.
"Quick, easy and clear with the process! Would definitely call out again for future work." — Lauren Filby, Sockets & Lights — Two Rooms
Bottom line: post-war semi owners in Cardiff deserve a quote calibrated to c.1945–1965 construction, not a template. That's what we do, on every job.
Send the address, a photo of the hallway or garage and the consumer unit, and the modernise without a full rewire you're working towards. Written fixed quote back inside 24 hours, priced to the actual construction of your post-war semi.
