If a previous certificate exists, eicr — electrical safety checks for home sellers usually starts by checking whether it still reflects reality. Keeping the chain moving — a buyer's survey flagged the electrics, and you need paperwork or fixes fast — that is the underlying job. Age alone does not condemn an installation. Plenty of older Merthyr Tydfil wiring tests perfectly well; some newer work does not. Around CF47–CF48 it is the single most common reason a job runs long.
The practical question on this job is photos of the CU and meter, or a 15-minute, and it is answered by testing rather than by opinion. In Merthyr Tydfil that usually decides both the scope and the sequence of the visit. For stone-built valley terraces in Heolgerrig and Cefn Coed that detail matters more than it does elsewhere. Eicr — electrical safety checks for home sellers is one of the more commonly misquoted jobs, largely because nobody tests before pricing it.



