How Much Do Double Glazed Windows Cost in Melbourne? (2026 Price Guide)

Published 24 June 2026 • 8 min read

If you’re a Melbourne homeowner thinking about upgrading your windows, one of the first questions on your mind is likely: how much will double glazed windows actually cost?

It’s a fair question — and the answer isn’t always straightforward. Prices vary depending on frame material, glass type, window size, and the complexity of your installation. In this guide, we’ll break down the real costs of double glazed windows in Melbourne for 2026, explain what drives the price up or down, and show you how to get the best value for your investment.

With Melbourne’s energy costs continuing to rise and the Victorian government pushing stricter energy efficiency standards for new builds and renovations, double glazing has gone from a luxury upgrade to a practical necessity. Whether you’re building new, renovating, or simply replacing tired old windows, understanding the costs involved helps you plan smarter and avoid surprises.

Average Double Glazed Window Prices in Melbourne

Let’s start with what most people want to know — the numbers. Here’s a realistic breakdown of double glazed window costs in Melbourne as of 2026:

These prices include supply and professional installation. Keep in mind that very old homes or properties with non-standard window openings may incur additional costs for structural modifications.

For a typical three-bedroom Melbourne home with 10–12 windows, a full replacement using uPVC double glazed windows is significantly more affordable than aluminium. Contact us for a free quote tailored to your home.

What Affects the Cost of Double Glazed Windows?

No two window replacement projects are the same. Here are the main factors that influence your final quote:

Window Size and Style

Larger windows cost more — that’s obvious. But the style matters too. A simple fixed window is the most affordable, while awning windows, casement windows, and bi-fold configurations all add to the price due to additional hardware and engineering.

Frame Material

Your choice of frame is one of the biggest cost factors. uPVC frames are lighter, excellent thermal insulators, and more affordable to manufacture. Aluminium frames are stronger and slimmer, making them ideal for larger openings and modern architectural styles, but they come at a premium.

Glass Type and Thickness

Standard double glazing uses two panes of glass with an insulating gas (typically argon) sealed between them. You can upgrade to Low-E coated glass for better thermal performance, laminated glass for added security, or tinted glass for privacy — each upgrade adds a modest premium per window.

Number of Windows

Ordering more windows at once usually brings the per-unit cost down. Most manufacturers offer package pricing for whole-home replacements, which can save you 10–20% compared to replacing windows one at a time.

Accessibility and Installation Complexity

Ground-floor windows with easy access are straightforward to install. Upper-storey windows, heritage homes with decorative frames, or properties with restricted access (narrow lanes, multi-storey scaffolding requirements) will incur additional labour costs.

Removal and Disposal

If your old windows need to be removed and disposed of, this is usually included in the quote — but it’s worth confirming. Some companies charge separately for removing old timber frames, especially if asbestos-era putty or sealants are involved.

uPVC vs Aluminium Frame Costs

This is one of the most common decisions Melbourne homeowners face. Here’s a direct comparison:

Is Double Glazing Worth the Investment?

In short — yes. Here’s why Melbourne homeowners consistently find double glazing to be one of the smartest home improvements they can make:

Significant Energy Bill Savings

Melbourne’s climate swings from cold, wet winters to hot summers. Single glazed windows are one of the biggest sources of heat loss in winter and heat gain in summer. Double glazed windows reduce this thermal transfer by up to 50%, which translates directly to significantly lower heating and cooling bills. Larger homes and older properties tend to see the greatest savings.

Noise Reduction

If you live near a main road, flight path, or busy neighbourhood, double glazing can reduce external noise by up to 60%. The difference is immediately noticeable — and it’s one of the benefits homeowners mention most often after installation.

Increased Property Value

Real estate agents in Melbourne consistently report that double glazed windows are a selling point. They signal a well-maintained, energy-efficient home. Studies suggest double glazing can add 5–10% to your property value, making it one of the highest-return home improvements available.

Return on Investment

When you combine the energy savings, noise reduction, and property value increase, most Melbourne homeowners see a full return on their double glazing investment within 5–10 years. After that, it’s pure savings — and your windows will last 25–30 years or more.

How to Get the Best Value on Double Glazed Windows

Not all double glazing is created equal, and neither are all quotes. Here’s how to make sure you get genuine value:

Get Multiple Quotes

We always recommend getting at least three quotes from reputable manufacturers. This gives you a realistic picture of the market and helps you spot any outliers — either suspiciously cheap or unnecessarily expensive.

Choose a Local Manufacturer

Buying from a Melbourne-based manufacturer (rather than a reseller importing from interstate or overseas) means shorter lead times, easier warranty claims, and the ability to visit the factory. At Smart Doors & Windows, we manufacture everything at our Albion factory and handle installation ourselves — so there’s no middleman and no finger-pointing if something needs attention.

Consider a Whole-Home Package

Replacing all your windows at once is more cost-effective than doing them one at a time. You save on labour (the installers are already on-site), and most manufacturers offer volume discounts. It also means your entire home benefits from improved insulation immediately.

Don’t Cheap Out on Installation

A beautifully made window installed badly will underperform and may void your warranty. Always use qualified, experienced installers who know how to seal and fit windows correctly. Poor installation leads to drafts, water leaks, and condensation — the very problems you’re trying to solve.

Check for Government Rebates

The Victorian government periodically offers energy efficiency rebates and incentive programs. While double glazing isn’t always directly covered, it’s worth checking the latest programs on the Victorian Energy Upgrades website, as eligibility criteria and available incentives change regularly.

Frequently Asked Questions

What is the difference between uPVC and aluminium double glazed windows?

uPVC frames are the more affordable option and offer excellent thermal insulation naturally. Aluminium frames cost more but are stronger and slimmer (ideal for large openings), and suit modern architectural styles. Both can be double glazed. For a detailed comparison, read our guide on uPVC vs aluminium windows.

How long do double glazed windows last?

Quality double glazed windows typically last 25–30 years or more with proper care. The sealed glass unit maintains its insulating properties for 20+ years, while uPVC and aluminium frames are highly durable and require minimal maintenance. Choosing a reputable Melbourne manufacturer with proper quality control ensures your windows perform well for decades.

Can I get double glazed windows near me in Melbourne?

Yes. Smart Doors & Windows manufactures premium double glazed windows at our factory in Albion, Melbourne. We supply and install across all Melbourne suburbs. Get a free quote or call us on 0481 111 126 for a no-obligation measure and quote.

Are double glazed windows worth it for Melbourne’s climate?

Absolutely. Melbourne’s climate swings between cold winters (down to 5°C) and hot summers (up to 40°C+). Double glazed windows reduce heat transfer by up to 50%, keeping your home warmer in winter and cooler in summer. With Melbourne’s rising energy costs, the annual savings make double glazing one of the smartest home investments. Not sure if your windows need replacing? Check our guide on signs your home needs new windows.

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• Double Glazed Windows Melbourne — Our Full Range
• uPVC Windows Melbourne — Aluplast German Technology
• Aluminium Windows Melbourne — Premium Quality
• Commercial Windows Melbourne