← OhmsteadJob file 0417
A 1960s semi, rewired in three days.
- Where
- Hemel Hempstead, HP2
- Home
- 3-bed 1960s semi
- Circuits
- 22, all tested
- Time on site
- 3 days
01 / The brief
Rubber cable, a rewirable fuse box and one very warm socket.
The owners had bought the house a month earlier. The EICR we did first came back unsatisfactory: perished rubber insulation in the downstairs ring, no RCD protection anywhere, and a fuse box with the lid held on by hope. They asked for the whole house done before the decorators arrived.


02 / Three days
One circuit at a time, then everything live.
- D1
First fix upstairs
Lift boards, pull out the old cable, run new twin and earth to every point. The house stayed live downstairs so the family could cook that night.
- D2
First fix downstairs
New ring and radial circuits, kitchen appliance feeds, cable for smoke and heat alarms. Boards back down and chased walls filled before we left.
- D3
Board, test, certify
Old fuse box out, new board in, every circuit tested for continuity, insulation resistance and RCD trip time. Certificate and schedule handed over on the doorstep.
03 / The schedule
Ten ways on the board. Every one labelled.
- C1 · Ring final, upstairs32 A RCBO
- C2 · Ring final, downstairs32 A RCBO
- C3 · Kitchen appliances32 A RCBO
- C4 · Cooker32 A RCBO
- C5 · Lighting, upstairs6 A RCBO
- C6 · Lighting, downstairs6 A RCBO
- C7 · Smoke & heat alarms6 A RCBO
- C8 · Boiler & controls6 A RCBO
- C9 · Shower40 A RCBO
- C10 · EV charger (future)40 A spare way