Fuse Box Replacement in Caerphilly
Replace an old fuse box with a modern consumer unit that protects your family from electric shock and electrical fires.
- Covering Caerphilly
- Qualified & insured
- Free no-obligation quotes
- Local since 2014
- 4.9 on Googlefrom 46 reviews
- Local since 2014based in Cardiff CF5
- Qualified & insuredwork to BS 7671
- Free quotesno obligation, no pressure
Fuse Box Replacement in Caerphilly: A consumer unit replacement removes an old fuse box and fits a modern unit with RCD and circuit breaker protection, which disconnects the power quickly when a fault occurs. Cardiff Electrician tests every circuit as part of the change and issues an Electrical Installation Certificate under BS 7671.
Fuse Box Replacement for Caerphilly homes
The most common type of home in Caerphilly is semi-detached houses (44% of households, Census 2021). Whatever the age of your Caerphilly home, the signs are the same: a fuse box without RCD protection, trips you cannot explain, scorch marks or warm sockets, and wiring that has been added to over the years.
Housing figures: ONS Census 2021.
Older fuse boxes with rewireable fuses, plastic housings or no RCD protection do not offer the level of safety modern regulations expect. An RCD can cut the power in a fraction of a second if someone touches a live part, which an old fuse cannot do. Many homes in Cardiff still have the original board.
Changing a consumer unit is not just a box swap. Jorge tests every circuit before the change, because faults hidden in old wiring will cause a new RCD to trip. We tell you what we find, agree any repairs and then fit the new unit with the right protection for your home.
Signs you need it
- Your fuse box has rewireable fuses or a wooden back
- There is no RCD protection on your circuits
- Breakers or fuses trip or blow regularly
- You are adding an EV charger, shower or new circuits
- The fuse box casing is cracked, scorched or makes a noise
- You are buying, selling or renovating an older property
What's included
Pre-change testing
We test existing circuits before fitting the new unit, because hidden faults in old wiring can make a new RCD trip.
Modern consumer unit
We fit a consumer unit with RCD protection, circuit breakers and a non-combustible enclosure, in line with the current edition of BS 7671.
Surge protection where needed
We assess whether surge protection is required for your installation and include it where the regulations call for it, explaining why in plain terms.
Labelling and certificate
Every circuit is clearly labelled, tested after the change and recorded on an Electrical Installation Certificate, which you should keep with your property documents.
Where we work in Caerphilly
We cover the whole of Caerphilly, including:
Questions about fuse box replacement in Caerphilly
Do you do fuse box replacement in Caerphilly?
Yes. Jorge carries out fuse box replacement across Caerphilly, including Lansbury Park, Energlyn, Trecenydd, Penyrheol, Llanbradach and Bedwas. We are based in Cardiff, about 7 miles from Caerphilly. Call 029 2000 1399 or send the form for a free, no-obligation quote.
Is it a legal requirement to replace an old fuse box?
There is no general law forcing homeowners to replace an older board, but a fuse box without RCD protection falls well short of current safety standards. If you are adding circuits, an EV charger or a shower, the existing board may need upgrading anyway to protect the new work properly.
How long will the power be off?
The power is off while the old board is removed and the new one connected, usually for most of a working day. We tell you in advance, and plan the work so fridges and freezers are off for as short a time as possible. Hidden faults can add time, which is why we test first.
What affects the cost of a consumer unit replacement?
The number of circuits, the condition of the existing wiring, whether faults need repairing first, whether main earthing and bonding need upgrading, and whether surge protection is required. A quick look at your current board is usually enough for Jorge to give an accurate free quote.
Why does my new RCD keep tripping?
An RCD detects small earth leakage that an old fuse box ignored, so existing faults in wiring or appliances can show up for the first time. That is the RCD doing its job. Testing the circuits before the change helps us find and deal with these problems at the outset.
Other electrical work in Caerphilly
- Full Rewires
- Cooker & Oven Installation
- Electrical Fault Finding
- Electric Shower Installation
- Emergency Lighting
- EV Charger Installation
- Extractor Fan Installation
- Garden Electrics
- Outdoor Lighting
- Light Fitting
- Ring Doorbell & CCTV Fitting
- PAT Testing
- Extra Sockets & USB Sockets
- Summerhouse & Outbuilding Electrics
- Bathroom Electrics
- Garage Electrics
- Electric Underfloor Heating
- Kitchen Electrics
- Smoke Alarm Installation
- Media Wall Wiring
- Electric Radiator Wiring
Fuse Box Replacement in nearby areas
- Cardiff
- Penarth
- Bridgend
- Newport
- Swansea
- Bristol
- Aberdare
- Barry
- St Mellons
- Dinas Powys
- Llandough
- Llandaff
- Canton
- Grangetown
- Merthyr Tydfil
- Cowbridge
- Monmouth
- Neath
- Port Talbot
- Pontypridd
- Rhondda Valley
More about fuse box / consumer unit replacement and our electrical services in Caerphilly.
Rated 4.9 out of 5 on Google
I had a number of small electrical jobs for Jorge to do. He completed everything quickly, professionally and to a high standard. Jorge was very polite and helpful and clearly takes pride in his work. I would 100% call him if I need more electrical work doing.
I have been a private landlord 25 years and can count the reviews I've left on one hand. I've known Jorge several years. He is a trusted professional, timely and charges competitive rates.
We initially asked Jorge to help us after being let down by another electrician, and he was only too happy to help make some bad work safe... Jorge always explains what is going on and helps us understand more about how electrics work. He is thorough, leaves no mess behind and very reliable.
Fuse Box Replacement in Caerphilly? Talk to Jorge.
Free, no-obligation quotes across Cardiff and South Wales.

