You can do some electrical work in your own house if you have the right skills and understand the work you will be doing. Make sure you’ve turned the power off and you’re not working near any live terminals or conductors.
If you’re installing, extending or altering cables, your work must be checked and inspected by a licensed electrical inspector. If safe, the inspector will connect it, test it and issue a Certificate of Compliance.
Don’t carry out any electrical work if you don’t have the appropriate skills. If you have any doubt, use a licensed professional.
WorkSafe has detailed information about what you can and can't do. Please check its website before you get started: Doing your own electrical work
Visit the Building Performance website for everything you need to know before you start building work that is exempt from the building consent process, including who you should engage to do the work, what rules to follow and where to go to for advice: Building work that doesn't need a building consent