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How Much Can New Windows Really Save You on Energy Bills in Australia?

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Energy Prices Are Rising — So What Can You Do?

Australian households are feeling the pinch of rising power bills. Whether it’s running the air conditioner through scorching summer heat or keeping the winter chill out in southern regions, our homes are constantly battling the elements — and often, losing.

The biggest culprit? Outdated, poorly performing windows.


Why Windows Matter More Than You Think

Windows account for up to 40% of a home’s heat loss in winter and nearly 90% of heat gain in summer, according to energy.gov.au. That means inefficient windows aren’t just uncomfortable — they’re expensive.

Even small draughts, outdated single glazing, or warped frames can drive up your energy use year-round.


What Are the Real Savings?

While the exact figure will depend on your location, home size, and usage, here’s what you can expect by upgrading to double-glazed, A-rated windows:

 

Region Potential Annual Saving Energy Benefit
Perth, WA $200–$400 Reduced summer heat gain
Melbourne, VIC $300–$500 Reduced winter heat loss
Adelaide, SA $250–$450 Year-round insulation
Brisbane, QLD $150–$300 Lower cooling demand

Add solar control glass or low-e coatings, and those savings rise even further.


How Does Double Glazing Actually Work?

Modern windows aren’t just about two panes of glass. Here’s what makes them perform:

  • Two panes of glass separated by a sealed air or argon gas layer

  • Low-e coatings that reflect heat back into your home in winter (or out in summer)

  • Tightly sealed frames that eliminate draughts and moisture

  • Thermally broken frames for ultimate insulation (available in uPVC and aluminium)


Bonus Benefits Beyond Your Bills

💡 Lower bills are just one advantage. High-quality window upgrades can also:

  • Reduce noise from traffic, neighbours, or barking dogs

  • Increase resale value of your property

  • Improve home security with modern locking systems

  • Reduce carbon emissions from over-reliance on heating/cooling


What About Government Rebates?

Eligibility varies by state, but homeowners may qualify for:

  • Energy efficiency upgrade rebates (Victoria Energy Upgrades, SA’s REPS)

  • Interest-free loan schemes

  • Green home grants or solar-linked packages

We recommend checking energy.gov.au or contacting us for help navigating your options.


Ready to Save?

If your windows are more than 10–15 years old, chances are they’re costing you money every single day. Upgrading to modern, high-performance windows is one of the smartest investments you can make in your home’s comfort and efficiency.


👉 Book a free consultation today to find out what your home could save.

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