Trusted Electrician in Cardiff
Cardiff Electrical Home Rewire Ltd provides expert fuse box and consumer unit repair services across all Cardiff postcodes. From emergency repairs to full upgrades with modern RCD and RCBO protection, our NICEIC Approved electricians ensure your home's electrical heart is safe, compliant, and future-ready.
Cardiff Electrical Home Rewire Ltd provides expert fuse box and consumer unit repair services across all Cardiff postcodes. From emergency repairs to full upgrades with modern RCD and RCBO protection, our NICEIC Approved electricians ensure your home's electrical heart is safe, compliant, and future-ready.
Fuse Box Repairs Across All Cardiff Postcodes
Your consumer unit is the single most critical safety component in your home's electrical system. When it develops faults — loose terminals, burnt busbars, faulty breakers, or outdated protection — the entire property is at risk. We provide fast, professional fuse box repairs and upgrades across every Cardiff postcode, from CF3 to CF99.
Cardiff's diverse housing stock means we encounter every type of consumer unit imaginable. Victorian terraces in Splott and Grangetown often have ancient fuse boxes with no RCD protection. 1930s semis in Whitchurch and Cyncoed frequently have early Wylex boards with limited ways. Post-war estates in Ely and Llanrumney may have outdated fuse boxes that are now non-compliant. Modern developments in Cardiff Bay need supply assessments before adding EV charger circuits. Our electricians have repaired and replaced consumer units in every property type across Cardiff.
Every fuse box job we undertake includes full testing of all circuits, RCD function verification, earth loop impedance measurement, and complete certification. If your unit is beyond economical repair, we provide honest advice on replacement options with transparent, fixed pricing for modern metal-clad boards with RCBO protection.
Electrical Services in Cardiff
Every service is backed by our NICEIC certification and 6-year workmanship guarantee.
Fuse Box Repairs
Professional repair of broken consumer units, loose terminals, faulty breakers, and burnt busbars across Cardiff.
Learn MoreConsumer Unit Upgrade
Replace old fuse boxes with modern RCD-protected metal-clad consumer units. Completed in a single day.
Learn MoreRCD Testing
Professional RCD function testing to ensure your life-saving devices work when needed.
Learn MoreSurge Protection
Whole-house surge protection to safeguard your electronics and appliances from voltage spikes.
Learn MoreEmergency Electrician
24/7 emergency response across all Cardiff postcodes. Average 45-minute response time.
Learn MoreEICR Testing
Electrical Installation Condition Reports for Cardiff landlords and homeowners.
Learn MoreWhy Cardiff Homeowners Choose Us
NICEIC Approved Contractor
We are a NICEIC Approved Contractor and Domestic Installer. All fuse box work is self-certified through NICEIC with building control notification handled on your behalf.
Same-Day Repairs
Our vans carry common MCBs, RCDs, RCBOs, busbar sections, and enclosure components. Most fuse box repairs complete in a single visit.
Honest Repair vs Replace Advice
We don't push unnecessary upgrades. If a simple repair is safe and cost-effective, that's what we recommend. If replacement is better, we explain why transparently.
6-Year NICEIC Guarantee
All fuse box work carries a 6-year NICEIC insurance-backed workmanship guarantee. If anything goes wrong with our repair, we fix it at no cost.
Common Electrical Problems in Cardiff Properties
Cardiff's diverse housing stock creates specific electrical challenges that require local expertise to resolve properly.
Loose Terminals and Arcing
Loose terminal screws in consumer units arc continuously, generating intense heat that can ignite the plastic enclosure and surrounding materials. This is one of the most common and dangerous faults we find in Cardiff properties.
Outdated Ceramic Fuse Boxes
Many Cardiff homes still have old fuse boxes with ceramic fuses and no RCD protection. These systems offer zero protection against earth leakage faults and are non-compliant with current BS 7671 standards.
Failed RCDs and MCBs
Faulty protective devices may not trip during a fault, leaving you completely unprotected against electric shock and fire. Only professional testing can identify failed devices.
Burnt Busbars
Over time, thermal cycling loosens busbar connections and causes oxidation. Burnt or corroded busbars prevent proper contact, increase resistance, and generate dangerous heat.
Our Process for Cardiff Customers
Free Assessment
We inspect your consumer unit for visible damage, test all protective devices, and identify the specific fault.
Repair or Replace
We advise on the most cost-effective and safe solution — repair existing components or upgrade to a modern board.
Professional Work
Faulty components replaced, connections tightened, and damage made good with quality parts.
Testing & Certification
Full electrical testing and appropriate certification provided before handover.
Questions About Cardiff
Simple repairs like MCB or RCD replacement cost £120–£200. More complex busbar or enclosure repairs range from £250–£450. Full consumer unit replacements typically cost £450–£850. We provide free, fixed quotes before starting work.
Electrician in Cardiff
Get a free quote for electrical work in Cardiff. Call 0333 323 1998 or request a callback.