It’s a question that comes up constantly when homeowners are planning work on their property: do I actually need an electrician for this, or can I do it myself? The answer depends less on how confident you feel and more on what the law says — specifically Part P of the Building Regulations.
Getting this wrong can have serious consequences. Uninspected electrical work can invalidate your home insurance, cause problems when you sell, and — most importantly — create a genuine fire or shock hazard that isn’t picked up until it’s too late.
What Is Part P of the Building Regulations?
Part P is the section of the Building Regulations that covers electrical safety in dwellings. It came into force in England and Wales in 2005 and sets out which electrical work must be carried out or inspected by a competent person — either a registered electrician or a building control body.
The key distinction Part P makes is between notifiable work and non-notifiable work. Notifiable work must either be carried out by a registered electrician (who self-certifies it) or notified to your local authority building control before it starts. Non-notifiable work can be done by a competent homeowner without notification.
What Can Homeowners Do Themselves?
The following tasks are generally considered non-notifiable and can be carried out by a homeowner with a reasonable level of practical competence:
- Replacing a like-for-like light fitting (provided the circuit is isolated first)
- Changing a plug on an appliance
- Replacing a damaged socket faceplate with one of the same type in the same location
- Replacing a light switch faceplate like-for-like
- Fitting a new light bulb or lamp
- Installing battery-operated smoke alarms or carbon monoxide detectors
- Replacing a broken fuse in a plug or consumer unit (with the correct rating)
The word “like-for-like” is important here. You’re replacing an existing fitting in the same position, with the same type of fitting, on the same circuit. The moment you start extending a circuit, moving a socket, or adding something new, you’re generally moving into notifiable territory.
What Requires a Registered Electrician?
The following are classed as notifiable work under Part P and must be carried out by a registered electrician or notified to building control:
- Installing a new circuit anywhere in the home
- Adding or moving a socket, light fitting, or switch — other than a like-for-like replacement
- Any electrical work in a kitchen or bathroom (these are higher-risk locations and all work here is notifiable)
- Replacing or upgrading a consumer unit (fuse box)
- Installing an EV charger
- Installing outdoor sockets, garden lighting, or supplies to outbuildings
- Any work on a swimming pool or hot tub electrical supply
Bathrooms and kitchens are treated as special locations because water and electricity in close proximity create a far higher risk. Even replacing a light fitting in a bathroom counts as notifiable work in most circumstances.
Why Does This Matter When You Come to Sell?
When you sell your home, your solicitor will ask about alterations and additions made during your ownership. Electrical work that should have been notified — but wasn’t — can hold up a sale or force you to have an EICR carried out at short notice to satisfy the buyer’s solicitor.
If the work was done without notification and is later found to have caused a fire or electrical fault, your buildings insurance may not pay out. The fact that you didn’t know about Part P is not a defence — the obligation rests with the person who carried out or commissioned the work.
What About “Having a Go” and Then Getting It Inspected?
Some homeowners assume they can carry out notifiable work themselves and then pay an electrician to inspect and certify it afterwards. In practice, most registered electricians will not certify work they haven’t carried out themselves — because doing so makes them liable for work they can’t stand behind.
The only legitimate route for uninspected DIY work is to notify your local authority building control before starting. They can arrange for an inspection on completion. This is less convenient and often more expensive than simply having the work done properly in the first place.
How to Check If an Electrician Is Properly Registered
If work is notifiable, you need a registered electrician. Registration with a government-approved scheme such as NICEIC, NAPIT, or ELECSA means the electrician has been assessed for competence and can self-certify their own work, issuing you with the appropriate certificate on completion.
You can verify registration on each scheme’s website by searching the electrician’s name or business. A legitimate registered electrician will always provide you with a Minor Works Certificate or Electrical Installation Certificate for notifiable work — if they don’t offer one, that’s a red flag.
A Practical Rule of Thumb
If you’re unsure whether something needs a registered electrician, the safest question to ask yourself is: am I changing anything, or just replacing what’s already there? Straight replacements in non-hazardous locations are usually fine. Anything that involves new wiring, a new position, a new circuit, or a bathroom or kitchen almost certainly isn’t.
When in doubt, a quick call to a local electrician will usually get you a straight answer. We’re happy to advise — and if the job does need doing properly, we can give you a clear, upfront quote. Get in touch with the team and we’ll point you in the right direction.
