Your consumer unit, the fuse box in everyday speak, is the heart of your home's electrics, and a few things tell you it's time for a new one. If yours still has rewireable fuses (the ceramic holders with a strip of wire you replace by hand), a wooden or metal-clad back board, or no RCDs (the safety switches that cut the power in a fraction of a second when something goes wrong), it belongs to an older generation and doesn't give the protection a modern board does. Other prompts are obvious damage, scorching or a burning smell, a board that trips for no clear reason, or a rewire or new circuit that the old unit simply can't accommodate.
A modern board gives every circuit its own protection, so a fault in one room can't black out the whole house, and it adds surge protection to look after your appliances. I fit and upgrade consumer units across Caerphilly, Blackwood and the valleys, and I never push a board you don't need, plenty of units I look at are perfectly fine and I'll say so. When one is genuinely due, I test every circuit before the changeover so there are no surprises, fit a quality board, label it clearly, and certify and notify the work through my NAPIT registration. Most upgrades are finished in a day.
Know when it's due
Rewireable fuses, a wooden back board or no RCD protection are the clearest signs a fuse box has had its day.
Tested before the swap
I inspect and test every circuit before changing the board, so any hidden fault is found and priced honestly up front.
Only when it's needed
If your existing board is sound I'll tell you so. I never sell a consumer unit that doesn't need replacing.
Your questions, answered
Does an old fuse box have to be replaced?
Not always, but if it has rewireable fuses, a wooden back or no RCD protection, upgrading brings real safety benefits. If yours is sound I'll tell you honestly, rather than pushing a board you don't need.
Why does my new fuse box trip when the old one never did?
A modern board catches faults the old one silently ignored, which is exactly the protection you're paying for. I test every circuit at changeover, so anything the new board flags gets found and put right properly.
How long will the power be off for the swap?
Usually just a few hours in the middle of the day. I plan the changeover to keep the disruption to your home as short as possible, and most upgrades are finished the same day.
Ready for electrics done properly?
Free fixed quotes across Caerphilly and South Wales. Certified work, an immaculate finish and a price that doesn't move.