For ex-mining cottages in Trecynon and Cwmbach in particular, full property rewires on a 1930s semi throws up a fairly predictable set of findings. 1930s semi rewires are usually driven by an extension or loft conversion — the trick is separating what's genuinely needed from what a builder assumes needs doing. A quote that arrives before any testing is a guess with a number on it. We do it the other way round. Around Rhondda Cynon Taf County Borough Council that is a familiar finding rather than an alarming one.
A fair amount of this work is preparation: confirming certificate at the end, delivered the same evening, planning the route, agreeing what happens if something unexpected appears behind the plaster. It gets photographed if it will be hidden afterwards. You can spend a lot on full property rewires on a 1930s semi or very little. Which one is right depends on measurements, not on the quote.



