There is no single price for in Cardiff, and anyone quoting one before looking is guessing. a CU upgrade at a rental usually gets triggered by a C2 on the EICR — we quote the swap on the same visit so you don't pay a second callout. Most enquiries reaching us from Cardiff arrive after something has already been tried. Starting from measurements rather than the previous attempt saves time. For Victorian and Edwardian terraces across Cathays and Roath that detail matters more than it does elsewhere.
Where previous work has no certification behind it, we test it rather than take it on trust. We would explain the same thing on site, just with the board open. This page is for anyone in Cardiff trying to work out whether consumer unit upgrades for landlords is their next job or next year's.



