2026-03-20
How Much Do Aluminium Windows Cost in Sydney & Melbourne? (2026 Guide)
How Much Do Custom Aluminium Windows Cost?
If you're renovating or building in Sydney or Melbourne, one of your first questions is: how much will new aluminium windows cost?
According to Australian industry data, aluminium window frames range from $300 to $1,250 per square metre depending on the type, glass, and level of customisation (Source: Trusted Tradie Network). Custom-made windows — manufactured to your exact opening size — sit at the higher end, but deliver significantly better fit, sealing, and long-term performance.
Average Price Ranges (2026)
| Window Type | Standard Size (per unit) | Custom-Made (per unit) |
|---|---|---|
| Sliding Window | $350–$600 | $500–$900 |
| Casement Window | $400–$700 | $600–$1,100 |
| Awning Window | $350–$650 | $500–$950 |
| Fixed Window | $250–$450 | $400–$700 |
| Louvre Window | $400–$750 | $600–$1,000 |
Prices include standard double glazing. Installation quoted separately.
What Affects the Price?
1. Size and Shape
Larger windows and non-standard shapes (arched, angled) cost more. Custom manufacturing means there are no size limitations — your windows are built to fit your openings perfectly.
2. Glass Type
Standard double glazing is included in most quotes. According to the Australian Government's YourHome guide, up to 40% of a home's heating energy can be lost through glazing, and up to 87% of unwanted heat can be gained — making glass selection critical. Upgrading to laminated, Low-E, or triple-glazed glass adds $50–$200 per panel but can significantly cut energy bills.
3. Frame Colour and Finish
Standard colours (white, black, grey) are typically included. Custom powder-coating adds $30–$80 per window.
4. WERS Energy Rating
The Window Energy Rating Scheme (WERS), managed by the Australian Glass and Window Association, rates windows from 0 to 10 stars for heating and cooling performance. Higher-rated windows cost more upfront but reduce ongoing energy costs.
5. Installation Complexity
Ground floor installations are straightforward. Multi-storey or heritage-listed property work requires more time and cost.
Custom-Made vs Standard: Why Pay More?
Standard off-the-shelf windows come in fixed sizes (600mm, 900mm, 1200mm widths). If your opening is 875mm wide, you either fill gaps with timber packing (compromising seals) or brick up the space (losing light).
Custom-made windows eliminate this problem. Every frame is manufactured to your exact millimetre measurement, delivering:
- Perfect fit with no gaps or packing
- Better weather sealing and energy efficiency
- Cleaner, more professional appearance
According to The Conversation, referencing CSIRO research, just over 10% of windows in new Australian housing are high-performance — compared to around 80% in the UK, US, and New Zealand. Investing in quality custom windows puts your home ahead of the curve.
How to Get the Best Value
- Compare like-for-like — don't compare custom quotes against standard off-the-shelf prices
- Consider total cost of ownership — cheap windows with air leaks cost more in energy over 10 years
- Ask about WERS ratings — higher-rated windows save $300–$800 per year on energy
- Check the warranty — IMLANG offers a 7-year warranty covering materials and workmanship
- Get a free on-site measure — accurate measurements mean accurate quotes with no surprises
Get a Free Quote
IMLANG provides free on-site measurements and detailed quotes for custom aluminium windows across Sydney and Melbourne. Every window is manufactured to your exact specifications with a 7-year warranty.
Call 0433 211 029 or request a free quote.
Ready to Upgrade Your Windows & Doors?
IMLANG offers free on-site measures and detailed quotes. Every product is custom-made to your exact specifications with a 7-year warranty.