Fuse Box Electrician
South Wales
Expert fuse box installation and repair across South Wales. Faulty MCBs, tripping circuits, old fuse boards replaced with modern consumer units. NAPIT approved electricians serving Cardiff, Newport, Swansea, Bridgend and all surrounding areas.
Fuse Box Installation & Repair Services in South Wales
Your fuse box (also called a consumer unit or distribution board) is the heart of your home's electrical system. When it develops a fault, trips repeatedly, or is simply too old to be safe, you need a qualified fuse box electrician in South Wales you can trust. Megalec Electrical Solutions provides fast, professional fuse box repairs and full fuse box installations across the region.
Whether you have a blown fuse, a faulty MCB that won't reset, an RCD that keeps tripping, or an old-style fuse board that needs replacing entirely, our NAPIT approved electricians diagnose and fix the problem quickly. We carry a full range of consumer units and components, so most fuse box repairs and installations can be completed in a single visit.
We serve domestic and commercial customers across Cardiff, Newport, Swansea, Bridgend, Caerphilly, Pontypridd, Barry, Merthyr Tydfil, Maesteg, Porthcawl and all surrounding South Wales areas. All work is fully certified and compliant with the latest 18th Edition wiring regulations.
Fuse Box Services We Provide
Complete fuse box installation and repair solutions across South Wales
Fuse Box Repairs
Fast diagnosis and repair of faulty fuse boxes — blown fuses, damaged MCBs, faulty RCDs, loose connections, and burnt components replaced same day.
Fuse Box Replacement
Old fuse boards replaced with modern consumer units featuring RCD protection, MCB circuit breakers, and surge protection devices (SPD).
RCD & MCB Replacement
Individual RCDs and MCBs replaced when faulty. We stock a wide range of breakers to match your existing consumer unit or upgrade to a new board.
Tripping Circuit Diagnosis
Persistent tripping circuits traced and resolved. We identify the root cause — overloads, earth faults, wiring faults — and fix it properly.
Commercial Fuse Box Work
Commercial distribution board installation, repair, and maintenance for offices, retail units, warehouses, and industrial premises across South Wales.
Full Certification
All fuse box work is fully certified with Electrical Installation Certificates and Building Regulations compliance documentation provided on completion.
Our Fuse Box Service Process
Fast, safe, and fully certified from first call to completion
Call & Book
Call us or request a quote online. We'll discuss your fuse box issue and arrange a convenient visit — often same day or next day.
Diagnosis
Our electrician inspects your fuse box, tests circuits, and identifies the exact fault or confirms what replacement unit is required.
Repair or Install
We carry out the repair or full fuse box installation efficiently, minimising the time your power is off and keeping disruption to a minimum.
Test & Certify
All circuits are tested on completion. You receive full certification and documentation — your electrical system is safe and compliant.
Call & Book
Call us or request a quote online. We'll discuss your fuse box issue and arrange a convenient visit — often same day or next day.
Diagnosis
Our electrician inspects your fuse box, tests circuits, and identifies the exact fault or confirms what replacement unit is required.
Repair or Install
We carry out the repair or full fuse box installation efficiently, minimising the time your power is off and keeping disruption to a minimum.
Test & Certify
All circuits are tested on completion. You receive full certification and documentation — your electrical system is safe and compliant.
Why Choose Megalec for Fuse Box Work in South Wales?
Fuse box repairs and replacements must be carried out by a qualified electrician — it's notifiable work under Building Regulations Part P. Megalec's NAPIT approved electricians have the skills, equipment, and stock to handle any fuse box job across South Wales, from a single MCB replacement to a full consumer unit upgrade for a large commercial property.
Service Areas Across South Wales
Available throughout Cardiff, Newport, Swansea, Bridgend & surrounding areas
Frequently Asked Questions
Simple fuse box repairs such as replacing a single MCB or RCD typically cost £80–£150. A full fuse box replacement (consumer unit upgrade) costs £400–£800 depending on the size and specification. We provide free no-obligation quotes.
In most cases, yes. We carry a wide range of MCBs, RCDs, and consumer units in our vans, so same-day fuse box repairs and many replacements are possible. Call us to check availability.
Persistent tripping is usually caused by an overloaded circuit, a faulty appliance, an earth fault in the wiring, or a failing MCB or RCD. Our electricians will diagnose the exact cause and fix it — not just reset the breaker.
If your fuse box has rewirable fuses, lacks RCD protection, is over 20 years old, or has failed an EICR inspection, replacement is strongly recommended. Modern consumer units provide significantly better protection against electric shock and fire.
Yes. Consumer unit replacement is notifiable under Building Regulations Part P. As NAPIT approved electricians, Megalec can self-certify all fuse box replacement work and provide the required compliance documentation.
Yes. We install, repair, and maintain distribution boards and consumer units for commercial properties including offices, retail units, restaurants, and industrial premises across South Wales.
Need a Fuse Box Electrician in South Wales?
Call Megalec today for fast fuse box repairs or a free quote on a new consumer unit installation. NAPIT approved electricians covering all of South Wales.