How to choose an electrician you can actually trust
Anyone can print a business card with a lightning bolt on it. The difference between a competent electrician and an expensive problem is almost always visible before the work starts, if you know which three or four things to check.
Registration is the first filter, not the last
In England and Wales, electrical work in dwellings is covered by Part P of the Building Regulations. Certain jobs are notifiable, which means the local authority has to be told they were done and that they meet the standard. Registered competent person schemes such as NICEIC, NAPIT and ELECSA exist so an electrician can self certify that work rather than paying the council for a building notice on every job.
Being registered means the firm has been assessed: qualifications checked, test instruments checked for calibration, and completed jobs inspected in person. It is not a marketing badge, and it is verifiable. Every scheme runs a free public search where you type in the business name or postcode and see whether the registration is current and what categories it covers.
Check it yourself rather than trusting a logo on a van. Logos are easy to buy and impossible to audit. A live entry on the scheme's own register is neither.
- Search the scheme's own online register, not the contractor's website
- Confirm the registration covers domestic installation work, not just testing
- Check public liability insurance is current and ask for the certificate
- Ask who will actually be on site, and whether they are employed or subcontracted
What a good quote looks like
A serious quote is written, itemised and specific about what is and is not included. It should name the parts being fitted, state how many days the work will take, say what happens to any making good, and set out payment stages. If a quote is a single number in a text message, you have nothing to hold anyone to when the job changes shape halfway through.
Be suspicious of anyone who quotes for a consumer unit change or a rewire without seeing the property. The price of that work depends entirely on the earthing arrangement, the state of the existing circuits and whether the bonding is adequate, and none of those things are visible over the phone. A quote given blind is a number that will change.
Cheapest is not automatically wrong, but understand why it is cheapest. Usually it is because remedial work has been assumed away, testing has been shortened, or certification is being skipped.
Questions worth asking before you book
Ask what paperwork you will receive at the end. For notifiable work that means an Electrical Installation Certificate or a Minor Works Certificate, plus a building regulations compliance notice from the scheme provider. If the answer is vague, that is your answer.
Ask how they handle faults found mid job. Every honest electrician will occasionally open something up and find a problem nobody could have predicted. What matters is whether they stop, explain it, show you the readings and price it in writing, or simply add it to the invoice at the end.
- What certificates will I receive and when?
- Is the work notifiable, and who notifies it?
- What happens to the price if you find something unexpected?
- Who is liable if there is a problem in twelve months?
Warning signs
Cash only with a discount for no paperwork is the clearest signal there is, because paperwork is the thing that protects you when you sell, insure or let the property. A large deposit before any materials have been ordered is another. So is pressure to decide today, and so is a reluctance to put anything in writing.
One more that people miss: an electrician who cannot tell you what test instruments they use or when they were last calibrated. Testing is the heart of the job. Anyone doing it properly can answer that question without thinking about it.
Local matters more than people expect
An electrician who works across Merthyr Tydfil, Cardiff and Swansea day in day out already knows the housing stock: the pre war terraces with imperial cable in the upstairs lighting, the valleys ex council semis with the meter under the stairs and no spare way on the board, the newer Cardiff Bay flats with communal supplies. That familiarity is why a survey takes twenty minutes rather than an hour and why the quote survives contact with reality.
It also matters for aftercare. A local firm that expects to be back in the same street next year has a strong incentive to leave the job right. That is not a guarantee, but it is a better set of incentives than a van from three counties away.
Official guidance
This guide is general information. For the final word on your own situation, use the official sources below.
Common questions
Does an electrician have to be registered by law?
There is no licence to be an electrician in the UK, but notifiable domestic work must either be done by a registered competent person or notified to building control separately. In practice, using a registered electrician is the simplest way to stay compliant.
How do I check a registration is real?
Use the scheme's own public register. NICEIC, NAPIT and ELECSA all publish a free search. Type in the business name or your postcode and confirm the entry is current.
Should I always get three quotes?
For larger work such as a rewire or a board change, yes. Compare what is included rather than the headline number, because the cheapest quote is often the one that has left the remedial work out.
Is a deposit normal?
For a job needing ordered materials, a modest deposit is reasonable. A large upfront payment before anything has been bought is not.
What if I am unhappy with completed work?
Raise it with the contractor first, in writing. If it is not resolved, registered competent person schemes operate complaints and workmanship processes, which is another reason registration is worth insisting on.