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Windows play a vital role in a home’s safety, energy efficiency and comfort—but not all windows are created equal. In Australia, strict regulations and Standards gov

Windows are essential elements of any home. They provide natural light, ventilation and contribute to the overall comfort and energy efficiency of your living space. Choosing the right window is more important than ever in 2025, with advances in technology and a growing focus on sustainability shaping the options available to homeowners and renovators across Australia. This guide will help you navigate the key considerations to select windows that best suit your needs.

Windows are one of the main reasons a home loses heat in winter and gains heat in summer. Selecting high performance windows is critical to achieving modern energy efficiency standards and reducing ongoing energy bills.

When selecting windows for a new build or renovation, it is essential to consider Australia’s varied climate zones and the latest energy efficiency requirements. The National Construction Code (NCC) now mandates a minimum 7‑star NatHERS rating for all new residential projects.

Australian Standard AS 3959:2018 defines Bushfire Attack Levels from BAL‑Low through to BAL‑FZ. This standard remains the basis for designing buildings in bushfire‑prone areas. All new builds and renovations must undergo a BAL assessment to determine the required level of resistance to ember attack, radiant heat and flame contact.

Windows are often one of the least frequently replaced features in a home. This makes it essential to select windows that meet current building...

Under the National Construction Code (NCC) all windows and external glazed doors must comply with AS 2047 for structural strength air infiltration resistance water penetration resistance and durability.

According to Part 8.2 of the NCC 2022 all windows and external glazed doors must be installed so that structural loads are not transferred to the window assembly. A minimum 10 mm gap is required between the top of the assembly and any loadbearing framing or masonry element to allow for settlement over time.

When planning a renovation or new build in Australia, window compliance is often overlooked, but it shouldn’t be. With updated requirements in the 2022 and 2025 editions of the National Construction Code (NCC), and growing focus on energy efficiency, insulation and bushfire safety, it’s crucial to ensure every window in your home meets current Australian standards.

The Window Energy Rating Scheme (WERS) enables windows and glazed doors to be rated and labelled according to their annual energy impact on a house in any Australian climate. WERS is managed by the Australian Glass and Window Association and complies with the protocols of the Australian Fenestration Rating Council.