Tripping fuses or flickering lights? Common causes
A breaker that trips repeatedly usually means a fault on a specific circuit, not the consumer unit itself — an electrician can isolate which circuit is affected. Flickering lights are often a loose connection rather than a faulty bulb, and worth having checked rather than ignored, particularly in older wiring.
Electrical upgrades: EV chargers, solar PV & smart home systems
Beyond repairs, many electricians now fit EV charging points, solar PV inverters and battery storage, and smart home systems — app-controlled lighting, heating and security. These jobs usually need a separate circuit and, for EV chargers, a dedicated consumer unit way — worth checking your existing setup can support the extra load before booking.
Electrical regulations and legal requirements, FAQ
Do I need a certificate for a new socket? Only if it's part of notifiable work such as a new circuit. Can I do my own electrical work? Non-notifiable like-for-like repairs, yes — notifiable work legally needs a registered electrician or council sign-off. What happens if I sell my house without one? It can hold up the sale or affect your buyer's mortgage offer.
What affects the cost
Cost depends on the scope of the job, how much of the property needs to be accessed, the age and condition of the existing wiring, and whether the consumer unit needs upgrading. A single socket replacement is quick and low-cost; a full rewire in an older property takes longer, partly because of the making-good work afterwards.
Garage and workshop power
Running power to a detached garage or workshop means an armoured cable, usually buried, and its own consumer unit or sub-board with RCD protection at the supply end. If you're planning to run power tools or an EV charger from it, size the supply for that from the start — upgrading later usually means digging the cable run up again.
Outdoor and garden electrics
Outdoor sockets, garden lighting, and supplies to sheds or outbuildings need weatherproof (IP-rated) fittings and their own RCD protection — standard indoor sockets and cabling aren't rated for outdoor use. This is notifiable work under Part P if it involves a new circuit.
Solar panels and battery storage wiring
Solar PV and battery storage installation is specialist work, usually done by an MCS-certified installer rather than a general electrician, and needs its own isolation switches and a compliant connection to your consumer unit. Your energy supplier and network operator also need to be notified before or after installation, depending on system size.
Understanding the labour vs materials split
Materials — consumer units, cabling, sockets, fittings — are usually a smaller share of an electrical quote than labour, particularly for jobs involving lifting floors or chasing walls. If a quote seems unusually cheap, check whether it's using a lower-spec consumer unit or cabling than a competing quote, not just a lower labour rate.