We have a 1920s semi-detached that's never been fully rewired. The circuits are a mix of old rubber-insulated cable and a partial update from the 1980s. We'd like to get it done properly, but we're worried about the disruption - do we actually have to move out, and how long does a full rewire typically take?
A full rewire on a property of that era is the right decision when rubber-insulated cable is present - it degrades over time and can present a fire and shock risk. For partial or room-by-room rewiring, many homes can remain occupied with careful planning and power restored to essential areas each evening. For a full rewire, moving out for the most disruptive first-fix phase is often recommended where practical, especially in occupied family homes. The final recommendation depends on property size, access, age of wiring, the room-by-room plan and safety.
We work in two stages:
- First fix - All new cabling is run through the fabric of the building. On a 1920s property, this typically means working through ceiling voids, lifting floorboards, and chasing plaster where needed. We use dust sheets, HEPA-filtered extraction equipment, and seal off rooms daily to keep disruption manageable.
- Second fix - Once decorating is complete (or once you are happy to proceed), we fit all accessories: sockets, switches, luminaire connections, and the new consumer unit.
The new consumer unit will be a fully metal, fire-rated enclosure compliant with the latest 18th Edition Amendment 2 wiring regulations - a significant safety upgrade in itself. A typical four-bedroom period property in South West London takes our team three to five working days for first fix, depending on layout complexity.
We issue a full Electrical Installation Certificate on completion, which is important for building insurers and any future sale. Learn more about our rewiring service or book a no-obligation survey.