New Consumer Units & Fuseboard Upgrades — Teslec Electrical Services
Your consumer unit — commonly known as the fuse box or fuseboard — is the heart of your home’s electrical system. It controls every circuit in the property, and when it’s working correctly and to a modern standard, it is the single most important layer of protection your household has against electrical faults, fires, and electric shock. If your property still has an older fuseboard that has never been upgraded, or a consumer unit that no longer meets current safety standards, the risk is real — and the solution is straightforward. A New Consumer Unit installation from Teslec Electrical Services brings your home up to the protection it deserves, quickly, cleanly, and permanently.
At Teslec Electrical Services, our fully qualified Electrician team installs New Consumer Units and upgrades Old Fuseboards throughout South Wales — working safely, to current BS 7671 wiring regulations, and providing full certification on every installation. It is one of the most important electrical improvements you can make to any home.
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Consumer Unit & Fuseboard Services We Offer
⚡ New Consumer Unit Installation
A modern consumer unit provides protection that older fuseboards simply cannot match. Fitted with RCD (Residual Current Device) and RCBO (Residual Current Breaker with Overcurrent) protection, a New Consumer Unit responds to dangerous electrical faults in milliseconds — automatically cutting power before a fault has the chance to cause a fire, damage appliances, or put a person at risk of electric shock. Teslec Electrical Services installs new consumer units throughout South Wales, with every installation completed to current BS 7671 standards and fully certified on completion. If your home’s fuse box has never been upgraded, this is the electrical improvement that matters most.
⚡ Old Fuseboard Replacement
Older fuseboards — the type fitted with rewirable fuses or early MCBs without RCD protection — are a genuine safety concern in any South Wales home. They were designed and installed in an era when the electrical demands placed on a household were a fraction of what they are today, and they lack the automatic fault detection that modern consumer units provide as standard. Replacing an Old Fuseboard with a modern, correctly specified consumer unit is the most direct and effective electrical safety upgrade available, and our qualified Electrician team carries out every replacement safely, efficiently, and with minimum disruption to your household. The job is typically completed within a single day.
⚡ Fuseboard Upgrades
Not all consumer unit upgrades are replacements of very old boards. In many South Wales properties, a fuseboard that was installed relatively recently may still need upgrading — because it has been outgrown by the electrical demands placed on it, because it doesn’t include full RCD protection across all circuits, or because additional circuits have been added over the years that have pushed the board beyond its original specification. Teslec Electrical Services assesses the existing installation honestly and carries out fuseboard upgrades throughout South Wales wherever an upgrade is genuinely needed and beneficial.
⚡ RCD & RCBO Protected Consumer Units
Modern consumer units come in several configurations — dual RCD boards, fully RCBO boards, or a combination — and the right choice for your property depends on the number of circuits, the type of electrical loads in the home, and the level of protection most appropriate for your household. A fully RCBO-fitted consumer unit provides the highest level of individual circuit protection available, meaning a fault on one circuit trips only that circuit rather than cutting power to half the house. As a qualified Electrician team, Teslec Electrical Services advises every customer honestly on the right specification for their property — and installs to that standard every time.
⚡ Consumer Unit Upgrades for Home Improvements
Adding an EV charge point, a hot tub, a new kitchen, or an outbuilding with its own electrical supply — all of these improvements require additional circuits, and an older consumer unit may not have the capacity or the correct protection to accommodate them. Before any major electrical addition is made to a property, the consumer unit must be assessed to confirm it can safely handle the increased load. Teslec Electrical Services assesses and upgrades consumer units throughout South Wales ahead of major home improvement projects, ensuring the existing system is up to the job before any new circuit is added.
⚡ Consumer Units for New Builds & Extensions
New builds, extensions, garages, and outbuildings requiring their own electrical supply all need a correctly specified consumer unit installed as part of the project. Whether it’s a sub-board for an outbuilding fed from the main house supply, or a new main consumer unit as part of a full electrical installation for an extension, Teslec Electrical Services installs and certifies consumer units throughout South Wales for all types of new build and extension work — always to current Part P building regulations and BS 7671 wiring standards.
⚡ Consumer Unit Certification & Sign-Off
Every New Consumer Unit or fuseboard upgrade carried out by Teslec Electrical Services is accompanied by full certification — an Electrical Installation Certificate (EIC) that confirms the work meets current BS 7671 wiring regulations and has been inspected and tested by a qualified Electrician. This documentation is important for your home insurance, essential if you ever sell the property, and the only way to be certain the work has been done correctly and to the standard required by law. You will always receive your certificate before we leave the job.
Why Upgrade Your Old Fuseboard?
Many South Wales homeowners are unaware that their existing fuseboard falls short of current safety standards — or that the consequences of that shortfall are real and potentially serious. Here is why a New Consumer Unit installation from Teslec Electrical Services is one of the most important electrical decisions you can make for your home:
- ✅ Older fuseboards without RCD protection cannot detect or respond to dangerous faults quickly enough to prevent electric shock or electrical fires
- ✅ Rewirable fuse boards can be — and frequently are — incorrectly fused, increasing risk significantly
- ✅ Many home insurers require evidence of an up-to-date consumer unit — an Old Fuseboard can affect your cover
- ✅ A modern consumer unit is a legal requirement for all new electrical work in most circumstances
- ✅ The upgrade is typically completed within a single working day with minimal disruption
- ✅ Every installation by our qualified Electrician team is fully certified to BS 7671 wiring regulations
- ✅ Teslec Electrical Services provides transparent, honest pricing and a free no-obligation quote on every job
Areas We Cover For New Consumer Units & Fuseboard Upgrades
As your local Electrician team for New Consumer Units and Old Fuseboard upgrades across South Wales, Teslec Electrical Services covers a wide area. Click your region below to find out more about the electrical services we offer in your area:
Get a Free Quote for Your New Consumer Unit
Whether you have an Old Fuseboard that has never been upgraded, a consumer unit that needs replacing before a home improvement project, or simply want the peace of mind that comes with a modern, fully protected electrical system, Teslec Electrical Services is ready to help. Contact our qualified Electrician team today for a free, no-obligation quote — we cover the whole of South Wales and we’ll always give you honest, straightforward advice on exactly what your property needs.