Part P regulations explained - best electrician guides

Any electrical work in the home requires the highest safety standards to meet strict regulations. In the UK, electrical installations must comply with Building Regulations and British Standards. The key legislation covering electrical projects is Part P of the Building Regulations, ensuring work is completed legally and safely.

Here’s everything you need to know about Part P regulations.

What are Part P regulations?

Building Regulations Part P covers electrical safety in dwellings. It has been written for the design and fit of electrical installations to improve home safety, whether it’s house, apartment, conservatory, outbuilding or garden electrics. The electrical work must be designed and fitted to protect others from the risks of electrical shocks and fires, applying to both new builds and alterations to existing installations.

Under Part P, certain electrical work is classed as notifiable, meaning it must be reported to the local authority’s building control department OR carried out by a registered electrician who can self-certify their own work.

What do you need Part P for?

Part P is required for all notifiable electrical projects, including any complex or high-risk installations. Examples of notifiable electrical work include new circuit installations (e.g., new lighting or additional power circuits), existing circuit alterations, and consumer unit or fuse board replacements. Work completed in special high-risk locations like bathrooms, swimming pools or outdoor areas is also notifiable.

Any notifiable work will need to be completed by a registered electrical contractor or reported to building control for a safety and quality inspection. Failure to comply with Part P regulations can have serious consequences, such as fines, enforcement action or difficulties with selling the property.

What’s NOT notifiable under Part P?

Non-notifiable electrical work will usually be minor projects considered low risk. This means they can be carried out without the need to inform building control. It includes things like replacing existing light fittings, repairing electrical components in an existing circuit and adding new sockets to existing circuits (unless taking place in a ‘special location’ like a bathroom).

Only those competent in electrics should complete this type of task. Even if the job is non-notifiable, you could put yourself, others and property at risk if you don’t adhere to the highest safety standards. Always get help from a qualified electrician.

Should electrical contractors be Part P registered?

For electrical contractors working in domestic properties, being Part P registered is highly recommended. It’s the best way to ensure all electrical work complies with the law, reducing the risk of enforcement, fines and problems when selling your home. It also speeds up the entire electrical installation process, as they won’t have to notify your local authority before starting the work.

Check your electrical company is registered with a competent person scheme like NICEIC (National Inspection Council for Installation Contracting). This means they can self-certify their work without needing a building control inspection, thanks to their high level of credibility and the assessments they’ve undertaken.