A lot of the terraced housing in Blackwood, and out towards Cefn Fforest and Pengam, still has the original rewireable fuse box fitted when the house was built, the kind with a wire fuse you replace by hand rather than a switch you flick. Those old boards weren't built with modern life in mind, no RCD protection to cut the power fast if there's a fault, and not enough ways to cope with a kitchen full of appliances, an electric shower and a home office all running at once. I see fuses that have been repaired with the wrong wire, boards that are warm to the touch and units so old the manufacturer stopped making parts for them years ago.
When I replace an old fuse box I fit a modern consumer unit with an RCBO on every single circuit, so a fault on one circuit trips just that circuit rather than plunging the whole house into darkness, and I add surge protection as standard to guard against damage from the electrics on the street outside. The whole job usually takes a day, and I work through it methodically, isolating the supply, fitting the new board, testing every circuit against it and making sure everything from the kitchen to the loft light still works exactly as it should before I leave. You'll get a signed certificate for the work, which matters whether you're a homeowner in Blackwood or a landlord with a rental in Cefn Fforest or Pengam who needs it for an EICR.
Replacing old rewireable fuse boxes
Common across older Blackwood terraces and out towards Cefn Fforest and Pengam, I swap wire-fuse boards for a modern consumer unit with proper protection.
RCBO on every circuit
Each circuit gets its own RCBO, so a fault trips only that circuit instead of cutting power to the whole house, plus surge protection as standard.
Usually done in a day
Most consumer unit replacements are completed in a single day, tested throughout and finished with a signed certificate before I leave.
Your questions, answered
How much does a fuse box replacement cost?
It's usually in the region of £450 to £900 depending on the board and circuits involved. Every property differs, so I always agree one fixed written price before I start.
Do I need a new fuse box if mine still works?
If it's an old rewireable board with no RCD protection it's worth upgrading, even if it's still working, since it won't cut power fast enough in a fault.
Is a new consumer unit needed for a landlord EICR?
Often yes if the existing board has no RCD or RCBO protection, since that's one of the most common reasons an EICR comes back unsatisfactory.
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