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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.

Windows are often one of the greatest contributors to energy loss in Australian homes. Choosing the right energy-efficient window solution can reduce heating and cooling demand, improve indoor comfort and help meet modern energy standards.

Windows are long-term investments that require regular maintenance to keep them functioning safely and efficiently. Exposure to wind, rain, sunlight and seasonal changes can degrade seals, frames, and moving parts over time—particularly in Australia’s varied climates.