Guides & advice

The Castellano Electrical blog

Plain-English guides to Level 2 ASP electrical work in Sydney — what it involves, what it costs, and when you need an Authorised Service Provider.

Underground Power

Underground Power22 Apr 2026· 7 min read

Underground Power in Sydney: Cost, Process, and Is It Worth It?

Thinking of converting overhead power to underground in Sydney? Here’s the process, what drives the cost, the council and distributor steps, and whether it adds value.

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Guides

Guides18 Mar 2026· 8 min read

What Is a Level 2 Electrician? Everything Sydney Homeowners and Builders Need to Know

A plain-English guide to Level 2 ASP electricians in Sydney: what they legally can and can’t do, when you need one, and how to verify their authorisation.

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