Rewiring a house is a significant investment in your home’s safety and functionality. But how much does it cost to rewire a house in 2025? In this blog, we will explain the details to help you understand the rewiring process, its costs, and the factors that influence how much you’ll pay.

What Does Rewiring a House Involve?

Rewiring a house involves removing outdated and potentially unsafe electrical wiring and replacing it with newer, safer, and more efficient systems. In detail, the rewiring process includes:

  • Replacing old wires: Older homes often feature outdated wiring that doesn’t meet today’s safety standards. Upgrading to modern wiring ensures your home is safe and up to date.
  • Upgrading the electrical system: This could include new switches, power points, and even a new switchboard.
  • Home automation: In some cases, rewiring might also include setting up systems for home automation, smart lights, and other modern electrical systems.
  • Wall and ceiling modifications: Depending on the layout and condition of your home, some walls and ceilings may need to be modified to accommodate the new wiring.

Why Should You Rewire Your House?

Over time, electrical wiring can degrade, creating potential hazards like electrical fires, power surges, or system failures. Here are some of the key reasons you should consider rewiring:

  • Safety: According to NSW Fire & Rescue, 40% of residential fires are caused by electrical faults. Rewiring an old house, especially one over 30 years old, helps protect your home from electrical hazards.
  • Increased Home Value: Rewiring can significantly increase your home’s value, especially if you plan to sell in the future. An updated electrical system makes the property more attractive to buyers and makes your home more energy-efficient.
  • Compliance with Australian Standards: Rewiring ensures your home complies with the current laws and regulations, preventing fines or insurance issues.

The primary Australian standard governing rewiring and electrical installations is AS/NZS 3000:2018, commonly known as the Wiring Rules. This standard provides the minimum safety requirements for the design, construction, and verification of electrical installations in Australia and New Zealand.

Signs That It’s Time to Rewire Your Home

  • Frequent electrical issues: If you experience flickering lights, frequent tripped circuit breakers, or blown fuses, it’s a clear sign that your wiring needs an upgrade.
  • Overloaded circuits: Using too many appliances on one circuit can cause overheating and even fires. Rewiring your home adds extra circuits and power points, helping to distribute the load safely.
  • Odd Noises from Outlets: If you hear buzzing coming from an outlet, this is an indication of a serious problem with the wiring. Don’t ignore it. This is a sign that rewiring is urgently needed.
  • Burning smells or sparking outlets: This is one of the most dangerous signs. This could be due to degraded or faulty wiring, and immediate rewiring is needed to avoid a potentially life-threatening situation.

What Are the Average Costs for Rewiring a House in Australia?

Now to the big question: how much does it cost to rewire a house? The cost of completely rewiring a home can vary significantly depending on several factors that we will discuss later in this blog. However, we can break it down into average costs for homes in Australia:

  • Smaller Homes: $1,500 to $4,000 
  • Medium-Sized Homes: $5,000 to $8,000 
  • Larger Homes: $10,000 to $12,000

On average, a full house rewire can take anywhere from a few days to a week. For smaller homes, the process typically takes 2 to 3 days, while medium to large homes may take between 5 to 7 days to complete.

What Factors Influence the Cost of Rewiring a House?

  • Size of the Home: As mentioned earlier, rewiring larger homes comes at a higher cost. This is due to the increased number of circuits, power points, and the overall complexity of wiring that comes with bigger spaces.
  • Access to Wires: If the wiring is hidden behind walls or ceilings, it can make the job more complicated and time-consuming. Extra labour will be required to remove cladding or drywall, which can increase costs for both labour and repairs once the work is done.
  • Material Costs: The quality and type of wiring, along with the electrical components used, will significantly impact the overall cost. While higher-quality materials come at a premium price, they improve the safety and longevity of your electrical system.

If your home doesn’t require a full rewire, you can save money by targeting areas that need the most attention. This way, you can address urgent safety issues without the high cost of rewiring the entire home.

Conclusion

Rewiring a house is not a small expense, but it’s an important one for ensuring the safety of your family and improving the functionality of your home. 

To get an accurate quote for your home rewiring project, reach out to our team at 24 Hour Trade Services. You can call us at 1300 229 897 or submit our online form. Remember, while the initial costs might seem high, a rewired home will provide long-term peace of mind, increased safety, and higher resale value.