New Build Windows in Melbourne: Getting the Specification Right From the Start
Choosing the right new build windows in Melbourne is one of the most consequential decisions in any residential construction project. Windows are fixed into the building envelope early in the construction process, and changing them after the fact is expensive and disruptive. Getting the specification right before manufacturing begins means the finished home meets its energy rating, performs comfortably across Melbourne’s climate range, and does not generate callbacks or defects at handover. This guide covers what the current compliance landscape requires and what to look for in a new build window specification.
What the Current Compliance Requirements Mean for New Build Windows
The 2022 National Construction Code requires all new residential buildings to achieve a minimum 7 star NatHERS rating. In Melbourne’s climate zone, the window specification is one of the most significant variables in whether a home achieves this target. Builders and homeowners who treat windows as a late-stage or cost-driven decision often find the energy assessment does not pass first time, which creates design changes and delays.
New build windows in Melbourne need to address the following compliance requirements from the specification stage:
- WERS-rated products: NatHERS assessors require independently verified window performance data as inputs in their energy models. Products with WERS ratings provide U-values, solar heat gain coefficients, and air infiltration figures that are accepted by accredited assessors. Unrated products create compliance uncertainty.
- Appropriate U-values for the climate zone: Melbourne’s temperate climate requires windows with low enough U-values to limit heat loss in winter without blocking useful solar gain on north-facing elevations. The balance between U-value and solar heat gain coefficient needs to be managed across orientations.
- Airtight installation: NatHERS assessments assume window air infiltration values that are consistent with quality installation. Windows that are poorly fitted or incompletely sealed perform worse than their rated values and can cause a project to fall short of its modelled rating.
- Bushfire compliance where applicable: Properties in designated bushfire-prone areas require windows that meet the appropriate BAL rating. Products must be specified and certified accordingly.
What Astellite Offers for New Build Projects
Astellite manufactures new build windows in Melbourne using German-engineered Aluplast uPVC profiles and high-performance Lightbridge double glazing. Products are WERS-rated and accredited by AGWA, providing the certified data needed for NatHERS assessments. All products meet Australian building and safety standards including bushfire compliance where applicable.
Every unit is custom manufactured to the exact opening dimensions of the project, which eliminates site fitting issues and ensures consistent quality across every dwelling. The installation team manages the process from initial measure to final installation and cleanup, with every job backed by a 10-year warranty.
The full range for new build supply includes tilt and turn windows, awning windows, sliding windows, bifold windows, fixed windows, bay windows, corner windows, and custom windows. The complete door range is available for combined supply on single projects. Triple glazing is available across the range for projects targeting higher than minimum performance levels.
Astellite services new build projects in Melbourne, Geelong, Melton, and the Mornington Peninsula.
Get in Touch Today
Contact us today to discuss your new build window specification and find out how Astellite can support your project from design to installation.