You should not have to decode Part P on your own. The first check is to work out whether the job looks
like straightforward existing-circuit work, or whether notification, certification or registered
electrical delivery is likely to be needed. That is explained before booking, not after the scope has
already drifted.
What usually makes work notifiable
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In homes in England, common examples are installing a new circuit, replacing a consumer unit, or
adding to or altering an existing circuit in a special location such as around a bath or shower.
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Many ordinary replacements, repairs and maintenance jobs on existing installations are not notifiable.
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The decision depends on the real scope of the work, not just the label used in the first message.
What registered electrical delivery means here
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David checks the details first and tells you early if the job no longer looks like a straightforward
David-handled small job.
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David is not personally registered with a competent person scheme, so notifiable domestic work is not
self-certified by David.
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If the job needs a registered electrician, notification or certification, that part is set out before
booking so you know who is doing what, what paperwork belongs to the job, and what may affect timing
or price.
Official sources and further guidance