Every consumer unit upgrades on a hmo enquiry we take from Aberdare starts in the same place: what is the installation actually doing right now? HMO CU swaps mean RCBO-per-circuit — one tenant's faulty appliance shouldn't take out power to three other rooms. Common HMO findings we flag before quoting is the pivot point. Everything quoted after it follows from what the readings say, which is why the survey comes first at any CF44 address. Most Aberdare visits settle this within the first hour.
The order of work matters: isolate, test, explain, then price. Skipping the middle two is how people end up paying twice. Older installations around CF44 show this more often than newer ones. Consumer unit upgrades on a hmo touches safety, paperwork and cost, and the three do not always point the same way.



