Every consumer unit upgrades on a new-build enquiry we take from Merthyr Tydfil starts in the same place: what is the installation actually doing right now? That shapes every line on the quote. Photographs of anything hidden are taken as standard, because you should not have to take our word for what is above the ceiling. Most Merthyr Tydfil visits settle this within the first hour.
Owners often ask whether this can wait. Sometimes it can, and where common new-build findings we flag before quoting is the only finding we will say so plainly. Older installations around CF47–CF48 show this more often than newer ones. Consumer unit upgrades on a new-build touches safety, paperwork and cost, and the three do not always point the same way.



