This is a practical page about full property rewires on a post-war semi in Ystrad Mynach — no stock photography claims, no invented statistics. 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. Work in Ystrad Mynach is planned so that the disruptive part is as short as it can reasonably be. Materials matched to the stock is the part worth confirming rather than assuming.
Owners in Ystrad Mynach often ask whether this is a repair or the start of something bigger. Testing answers that; opinion does not. Which is why the price follows the test rather than the other way round. The Ystrad Mynach version of this job is shaped by the local housing: 1970s estates around Hengoed.



