Plenty of households cannot empty the house, stop working from home or pay for everything in one go. Splitting a rewire into stages answers all three problems. It is not a shortcut, though. A staged job still has to end up as one safe, coherent installation, so the order of work and the point at which each part is signed off matter more than they do on a single continuous job.
The short answer
A house can be rewired in stages, for example floor by floor, or a few rooms at a time over several months. Each stage is a complete piece of work in its own right: new circuits are run, connected, tested and certified before that part of the house goes back into daily use. What you should avoid is leaving a mix of old and new cable joined together with no plan to finish the rest.
What usually has to come first
The fuse board is normally the starting point. New circuits need modern protection, and fitting a new consumer unit early means every stage that follows can be connected straight to it. The main earthing and bonding are checked at the same point, because every later circuit relies on them.
After that, the order is driven by the building rather than by preference. Circuits that feed more than one room, such as an upstairs lighting circuit or a ring serving several bedrooms, decide where one stage can sensibly end and the next begin.
Common ways to split the work
There is no single correct split. The right one depends on how the circuits are laid out and how you use the house.
- Board and kitchen first, because the kitchen carries the heaviest loads
- Ground floor in one stage, upstairs in another, working from the loft and under floorboards
- Rooms being decorated this year first, the rest when their turn comes
- Lighting circuits in one visit, socket circuits in the next
- Old circuits that tested badly first, sound ones later
Where staging costs more
Every return visit means setting up again, lifting boards again and testing again. Some cable routes are also easier to run once across the whole house than in two halves. A staged rewire therefore usually costs a little more in total than the same scope done in one go.
The trade off is often worth it. You spread the cost, you keep most of the house usable, and you can line each stage up with the decorating or building work that would disturb the walls anyway. Your written quote should show each stage separately so the total is clear from the start.
Paperwork for each stage
New circuits are notifiable work, so each stage should be certified when it is finished, not just at the very end. Keep every certificate. When the last stage is done you should hold a complete record covering the whole house, which is exactly what a buyer's surveyor or a future electrician will ask to see.
If there is a long gap between stages, the old circuits that are still in use should be sound enough to carry on. A condition check on those circuits before the gap starts tells you whether that is true.
Living in the house between stages
Between stages the house works normally. The finished rooms run on new circuits, and the remaining rooms run on the old ones, protected at the new board. During each stage, expect the power to be off in the affected area for most working days, with lighting restored each evening wherever that can be done safely.
Dust and floorboard lifting are the parts people notice most. Clearing furniture from the next stage's rooms before the start date makes each visit shorter.
When staging is not a good idea
If testing shows the old wiring is in poor condition throughout, for example perished rubber insulation or no earth on the lighting, leaving any of it in service for months is hard to justify. In that case the honest advice is to do the whole house as one job, or at least to shorten the gap between stages as far as possible.
Common questions
- Is a staged rewire less safe than a full one?
- Not if it is planned. Each finished stage is tested and certified. The risk comes from open ended jobs where old and new cable are joined with no plan to finish.
- How long can I leave between stages?
- That depends on the condition of the circuits still in use. If they tested sound, months is reasonable. If they tested badly, shorten the gap.
- Can you quote for every stage up front?
- Yes. A written quote can set out each stage separately, so you can plan the timing and the cost.
Planning a rewire you would rather split into stages? Ask for a free written quote that sets out each stage.
Related guides
- Partial Rewire or Full Rewire: How to DecideA partial rewire is the right answer more often than people think, and the wrong one more often than they hope.
- How Long a Rewire Actually TakesThe electrical work is only part of the calendar — plaster drying is often the longest single item.
- Rewiring a House You Are Still Living InIt is entirely possible to live through a rewire. It is much easier if the phasing is agreed before anyone lifts a floorboard.