Consumer Unit
Upgrades in Cardiff
Professional fuse box replacement and consumer unit upgrades across Cardiff. Upgrade to modern RCD protection and meet current 18th Edition regulations. Serving Cathays, Roath, Canton, Pontcanna, Whitchurch, and all Cardiff areas.
Consumer Unit Upgrade Services in Cardiff
Consumer unit upgrades (also known as fuse box replacement) are essential for electrical safety in older properties across Cardiff. Modern consumer units provide RCD protection, circuit breakers, and surge protection that old-style fuse boxes simply cannot offer. If your Cardiff property still has an old fuse box with rewirable fuses or lacks RCD protection, an upgrade is strongly recommended.
At Megalec Electrical Solutions, we provide professional consumer unit upgrades throughout Cardiff including CF10, CF11, CF14, CF23, CF24 and all surrounding postcodes. Our NAPIT approved electricians install modern consumer units that meet the latest 18th Edition wiring regulations, providing enhanced protection against electric shocks, electrical fires, and power surges.
Whether you need a consumer unit upgrade for safety reasons, as part of a rewire, to support new circuits (like EV chargers), or to meet landlord EICR requirements in Cardiff, we provide fast, professional service across Cathays, Roath, Canton, Pontcanna, Whitchurch, Llandaff, Grangetown, Splott and all Cardiff neighborhoods.
Consumer Unit Upgrade Services
Modern electrical protection for your Cardiff property
RCD Protection
Modern consumer units with RCD protection that instantly cuts power in the event of a fault, preventing electric shocks and fires.
Circuit Breakers
Replace old rewirable fuses with modern MCB circuit breakers that trip instantly and can be easily reset without replacing fuses.
Surge Protection
SPD (surge protection devices) installed to protect your appliances and electronics from damaging voltage spikes.
EICR Compliance
Consumer unit upgrades to meet EICR requirements for landlords and ensure your Cardiff property passes electrical safety inspections.
Additional Circuits
Upgrade to larger consumer units with space for additional circuits to support EV chargers, extensions, and new appliances.
Full Certification
Complete electrical installation certificates and Building Regulations compliance documentation upon completion.
Our Consumer Unit Upgrade Process
Safe, efficient, and fully certified
Inspection
We assess your existing consumer unit, electrical system, and earthing arrangements to plan the upgrade.
Quote & Planning
Detailed quote provided with a clear explanation of the work required and any additional upgrades needed.
Installation
Professional installation of your new consumer unit with RCD protection, circuit breakers, and surge protection.
Testing & Certification
Full electrical testing, certification, and handover. Your property is now protected by modern electrical safety standards.
Inspection
We assess your existing consumer unit, electrical system, and earthing arrangements to plan the upgrade.
Quote & Planning
Detailed quote provided with a clear explanation of the work required and any additional upgrades needed.
Installation
Professional installation of your new consumer unit with RCD protection, circuit breakers, and surge protection.
Testing & Certification
Full electrical testing, certification, and handover. Your property is now protected by modern electrical safety standards.
Why Choose Megalec for Consumer Unit Upgrades in Cardiff?
Consumer unit upgrades require electrical expertise and must comply with Building Regulations Part P. Megalec's NAPIT approved electricians ensure your Cardiff upgrade is completed safely, efficiently, and with full certification – giving you peace of mind and legal compliance.
Service Areas Across South Wales
Available throughout Cardiff, Newport, Swansea, Bridgend & surrounding areas
Frequently Asked Questions
A standard consumer unit upgrade in Cardiff typically costs £400–£800 depending on the size of the unit, number of circuits, and any additional work required (earthing upgrades, circuit modifications). We provide free quotes.
Most consumer unit upgrades take 3–5 hours. Your electricity will be off during installation, but we work efficiently to minimize disruption. We can usually complete the work in a single visit.
If your Cardiff property has an old fuse box with rewirable fuses, lacks RCD protection, or fails an EICR inspection, you should upgrade. Consumer units over 20 years old should also be considered for replacement.
Yes, the electricity supply must be isolated during installation. We coordinate with your electricity supplier if needed and work efficiently to restore power as quickly as possible.
Yes, consumer unit replacement is notifiable under Building Regulations Part P. As NAPIT approved electricians, we can self-certify the work and provide all necessary documentation.
In many cases, yes. If we have the correct consumer unit in stock and no major additional work is required, we can often complete upgrades on the same day. Contact us to discuss your requirements.
Need a Consumer Unit Upgrade in Cardiff?
Contact Megalec today for a free quote. Upgrade to modern electrical protection with our NAPIT approved electricians serving all Cardiff areas.