Fuse Board Replacement Cardiff
Rewireable fuses, no RCD, or a board that trips every time the shower runs? We upgrade consumer units across Cardiff and certify the work the same day.
Fuse Board Replacement In Cardiff
Upgraded, Tested And Certified In A Day
We replace consumer units every week across Cardiff, and most are done inside a day, with the certificate in your hand before we leave. Every circuit is tested first, so you find out what is behind the cover before committing money, rather than halfway through.
Our fuse board services include:
- Fuse board and consumer unit replacement
- Rewireable fuse box upgrades
- RCD and RCBO installation
- Metal consumer units to current regulations
- Split load and full RCBO boards
- Main earthing and bonding upgrades
- Additional circuits and spare ways added
- Board upgrades for EV chargers and showers
- Landlord consumer unit replacement
- Part P certification and full testing
Whatever is on your wall now, we will look at it and tell you honestly whether it needs changing.
Thinking Of Upgrading Your Fuse Board?
From a single flat to a full commercial board, no job is too big or too small for our electricians.
Fuse Board Replacement Across Cardiff & Nearby
A Short Drive From Every CF Postcode
Cardiff based, so we know the housing stock and what is usually sitting behind the cover.
We replace boards across the whole city and out into the Vale.
The age of a property usually tells us what is behind the cover before we arrive, so we can give you a fair idea of the job from the postcode and the year it was built.
Our Accreditations
- NICEIC Registered
- Part P Compliant
- BS 7671 18th Edition
- Safecontractor Member
- MCS Accredited
- RECC Member
- CHAS Member
- OZEV Approved Charge Point Installer
- Trustmark Member
- Fully Insured
What Happens On The Day
Power Off While We Work, Certified Before We Leave
During a board replacement, you should expect to be without power for most of the time we are there. On a straightforward job that is roughly half a day. On a larger property, or one where testing turns something up, it can be the full day. We tell you which when we book it in so you can plan around it.
We test the existing circuits first because that tells us whether anything needs attention before a new board goes on. The old unit then comes off, the new one goes up, and every circuit is reconnected and labelled properly rather than left with a faded pencil mark.
Then the part that matters. Every circuit is tested, the RCDs and RCBOs are timed to confirm they trip within the required period, and the results go onto the certificate.
You are left with a board you can actually read, so when something trips on a Sunday evening you know which switch is yours before ringing anybody.
Signs Your Fuse Board Needs Replacing
What We Find Behind The Cover
Most people call us because something has gone wrong rather than because they were planning an upgrade. Rewireable fuses are the clearest sign, and they are still common across the city. They protect the cable rather than the person, so nothing in that board will help someone who puts a nail through a wall.
No RCD protection is next. Anything predating the early 1990s usually has none, and many later boards cover only some circuits. A wooden backboard or plastic enclosure also needs attention, because domestic boards have required a non-combustible enclosure since 2016.
Browning around a breaker means a connection has been running warm for a long time. Repeated tripping with no obvious cause often points to an ageing RCD, which is worth investigating properly before assuming the board is finished.
If yours has years left in it, we will say so. Plenty do, and there is no invoice in that answer.
Frequently Asked Questions
Our Fuse Board FAQs
What does a new fuse board cost?
Every job is different, so we look before quoting. The number of circuits, the size and layout of the property, where the board sits and the state of the earthing all change the work involved.
How long will my power be off?
Roughly half a day on a straightforward job, up to a full day on a larger property or where testing finds a fault first. We tell you which before booking it in.
Do I legally have to replace an old fuse board?
No. An old board is not illegal simply for being old. New work must meet current standards though, and a rented property inspection will flag a board with no RCD protection.
Will a new board make my lights trip more often?
It can. Proper RCD protection notices small faults an old fuse board ignored. We test every circuit before signing off, so those get found and fixed on the day.