If a previous certificate exists, ev charger installation for new-build owners usually starts by checking whether it still reflects reality. Property in Port Talbot varies street to street, so the honest answer to "what will it cost" is that it depends on paperwork is delivered in the format your agent, solicitor — checkable in under an hour. That holds whether the property is owned, let or being sold.
Where an installation has been extended over decades, the sensible approach is to establish a baseline before adding anything else to it. Two properties on the same street can differ on this entirely. Ev charger installation for new-build owners is one of the more commonly misquoted jobs, largely because nobody tests before pricing it.
