A consumer unit, still often called the fuse board, does not need replacing on a schedule, but there are clear signs it has had its day. If yours still has old rewireable fuses with wire in them rather than modern breakers, a wooden or plastic back board rather than a metal enclosure, or no RCD safety switches to cut the power fast in a fault, it no longer meets today's standards. Other prompts are a board that trips repeatedly, shows signs of scorching or overheating, or simply has no spare way to add the circuits a modern home needs, such as an EV charger or a new kitchen.
A modern unit gives every circuit its own protection, so a fault on one does not black out the whole house, and it guards against electric shock and fire in a way an old board cannot. We upgrade consumer units across Harrow, Edgware, Stanmore, Watford and North West London, testing every circuit first so any hidden faults show up before the new board goes in, not after. Most swaps are a single day's work with the power off for only part of it, and you get the Electrical Installation Certificate to prove the work is safe and to standard.
Signs it is time
Rewireable fuses, no RCD safety switches, a wooden back board or repeated tripping all point to a board that is past its best.
Tested first
We check every circuit before the upgrade, so any hidden faults show up early rather than after the new board is in.
A one-day job, certified
Most upgrades are done in a single day, left neatly labelled, and issued with an Electrical Installation Certificate.
Your questions, answered
Does an old fuse board have to be replaced by law?
No, there is no law that forces you to replace a working board simply for being old. But if it lacks modern safety switches or shows signs of damage, upgrading it is a sensible safety step. We test first and advise honestly.
Will a new consumer unit stop my tripping?
If the trips come from a faulty circuit, a new board alone will not cure that, it will just catch the fault more reliably. We test every circuit at the upgrade, so anything the new board flags is found and put right.
How long does a consumer unit upgrade take?
Most are done in a single day, with the power off for only part of it. We test every circuit as part of the work and label everything clearly before we leave.
Ready for electrics done properly?
Free fixed quotes across Harrow and Greater London. Certified work, an immaculate finish and a price that doesn't move.