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Ask an Electrician: How Do I Know If My Home Needs Rewiring?

Table of Contents

Table of Contents

Welcome back to our “Ask an Electrician” series, where we dive deep into your most pressing electrical concerns. Today, we’re exploring a critical question for many homeowners in Sydney, especially those in character-filled areas like Marrickville and Inner West Sydney: How do I know if my home needs rewiring?

Signs Your Home Might Need Rewiring

  1. Frequent Circuit Breaker Trips: This is a clear sign that your system is struggling under your home’s electrical demand. See our article on circuit breakers tripping.
  2. Flickering or Dimming Lights: Indicates inadequate power distribution, often due to outdated wiring.
  3. Outdated Rubber-Insulated Wiring: Common in homes built before the 1960s, posing significant fire risks as it degrades.
  4. Buzzing Sounds or Burning Smells: Overloaded or damaged wiring symptoms, requiring immediate attention.
  5. Shock or Spark from Outlets: These dangerous signs suggest faulty wiring or an overburdened electrical system.

Hypothetical Scenario: The Lee Family’s Rewiring Journey in Inner West Sydney

Meet the Lee family, whose historic Inner West Sydney home began showing worrying signs of electrical aging, from flickering lights to frequent circuit breaker trips. Concerned for their safety and the integrity of their beloved home, they sought the expertise of a licensed electrician.

The Electrician’s Assessment:

The electrician found the Lee’s home still relied on rubber-insulated wiring and an obsolete fuse box. A full rewiring was recommended to meet current Australian Standards, enhancing safety and functionality.

The Rewiring Process:

  • Cost: The complete rewiring, including new copper wiring, an updated circuit breaker panel, and extra outlets, was quoted at $10,000.
  • Duration: Estimated at two weeks, necessitating temporary relocation for the Lee family.
  • Added Improvements: The upgrade included surge protection and LED lighting installation for added safety and energy efficiency.

The Result:

Post-rewiring, the Lees’ home was safer and more functional. The investment significantly reduced the risk of electrical fires and improved the overall electrical performance, with the bonus of lower energy bills thanks to the energy-efficient upgrades.


If your Sydney home exhibits any of the warning signs discussed, it’s crucial to consult a licensed Sydney electrician like Mr Sparky. We’ve got 100s of 5-star reviews, and we can help you rewire your home today. Rewiring is a substantial but vital investment in your home’s safety, functionality, and value. In our “Ask an Electrician” series, we’re here to guide you through understanding and navigating the complexities of home electrical systems, ensuring your home remains a safe and enjoyable space.

Stay tuned for more insights and advice from our experienced electricians, who are dedicated to helping Sydney homeowners like you. Feel free to reach out if you have questions or topics you’d like us to cover. Your safety and satisfaction are our top priorities.


Meet Steven, owner of Mr Sparky and seasoned professional electrician in Sydney. With more than 15 years of experience in taking care of the electrical needs of Sydney’s residents, Steven loves to share his expertise and knowledge to ensure everyone is electrical safe. Need an electrician in Sydney – give Mr Sparky a call


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