Rewiring & Fuse Box
The big-ticket questions: when wiring has reached the end, what upgrading costs, and what the process is actually like.
How do I know if my house needs rewiring?
Age and evidence: wiring in old red-and-black colours predates 2006, rewireable fuses suggest decades without major work, and any rubber or fabric-covered cable means 1960s or earlier and genuine urgency. The definitive answer costs £150 to £280: an EICR tests every circuit and codes exactly what needs doing.
Read the full answerHow much does it cost to replace a fuse box?
£450 to £750 excluding VAT in Bristol for a modern metal consumer unit with RCBO protection per circuit, surge protection, full testing and certification. The day includes testing every circuit the board feeds, which is where cheap quotes cut and where the value actually lives.
Read the full answerCan you live in a house during a rewire?
Yes, and most of our Bristol rewires happen in occupied homes: the work is planned room by room, power stays on where we are not working, and each room is habitable again before the next opens. It adds a little time versus an empty house, but with a written room plan it is disruption, not exile.
Read the full answerHow long does a rewire take?
Five to ten working days for a full three-bed rewire: roughly a week of first fix (cables in), then second fix (faces on) and a final day dominated by testing and certification. Occupied houses run a day or two longer than empty ones; larger houses scale with circuit count.
Read the full answerWhat are the old wiring colours in the UK?
Before 2006, UK fixed wiring used red for live and black for neutral; since 2006 it is brown for live and blue for neutral, matching Europe. Red-and-black wiring is not automatically dangerous, but it dates the installation to at least two decades old, which makes an inspection worthwhile.
Read the full answerDo I legally have to upgrade my old fuse box?
In your own home, no: no law forces an upgrade, and an old board that passes inspection can legally stay. The pressure points are practical: an EICR coding it C2 (which makes remedial work legally required for landlords), insurance questions, and the reality that rewireable fuses protect wiring but do very little to protect people.
Read the full answerWhat is an RCD and do I need one?
An RCD (residual current device) detects current leaking out of a circuit, through a damaged cable or a person, and disconnects in milliseconds, fast enough to prevent fatal electric shock. Modern consumer units protect every circuit this way (ideally via individual RCBOs); if your board has none, that is the single most valuable upgrade available to you.
Read the full answerWhy does my electricity keep tripping?
A trip is protection working: something is leaking current or overloading a circuit. The commonest culprit is a failing appliance, which you can find yourself by unplugging everything on the circuit and reintroducing one at a time. If the circuit trips with nothing plugged in, or trips instantly on reset, stop resetting and book fault-finding: each reset pushes fault current through damage.
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