How Much Do Double Glazed Windows Cost in Australia? (2025 Data)
- PA Home
If you’re considering upgrading your house windows to double glazing, you might be wondering, how much do double glaze windows cost? These windows are an excellent choice for improving energy efficiency, reducing noise, and enhancing overall comfort in your home. However, the price can vary significantly depending on factors like window size, frame material, and glass type.
In 2025, the cost of aluminium double glazed windows in Australia can range widely. This guide will help you understand the costs, the factors that influence pricing, and the available government incentives to make your window upgrade more affordable.
What is A Double Glazed Window?
Double-glazed windows originated in the early 20th century, with the first patent filed by William W. Waring in 1934. His design featured two panes of glass with an air gap for better insulation. The widespread use of double glazing grew in the 1970s, driven by energy conservation needs during the oil crises.
Today, double-glazed windows are commonly used in residential, commercial, and industrial buildings around the world, offering a combination of energy efficiency, sound insulation, and security. Innovations like Low-E coatings and triple glazing continue to enhance their performance.
What are the Pros and Cons of Double Glazed Windows?
| Pros | Cons |
|---|---|
| Energy-efficient, reduces energy bills | Higher initial investment cost |
| Significantly reduces noise, improves quality of life | Installation process may be complex, long duration |
| Improves home comfort and air quality | Additional renovation costs may apply for older homes |
How Much Does Double Glazing Window Cost?
In Australia, aluminium double glazed windows are a popular choice due to their durability and energy efficiency. Here’s a breakdown of the average costs of aluminium double glazing windows in 2025:
Price Range for Aluminum Double Glaze Windows in Australia
| Type of Window | Price Range (AUD) | Average Cost (AUD) |
|---|---|---|
| Fixed Windows | $200 – $800 | $500 |
| Sliding Windows | $600 – $1,500 | $1,050 |
| Casement Windows | $500 – $1,800 | $1,150 |
| Double-Hung Windows | $700 – $1,900 | $1,300 |
| Bay/Bow Windows | $2,000 – $5,000 | $3,500 |
| Bi-Fold Windows | $1,200 – $3,500 | $2,400 |
| Awning Windows | $400 – $1,500 | $950 |
Last updated: April 2025 – Our costs are ballpark averages – get a window manufacturer to quote now.
The cost of double glazed windows can vary depending on several factors, including the size, style, and materials used.
The cost of double glazed windows can also vary based on the window style, even when the same material is used. For example, aluminium double glazing fixed windows and operable windows may use the same aluminium frame and glazing, but the operable windows typically cost more due to the additional hardware and more complex installation required.
Unsure about which type of window is best for your home? Discover the different window designs available to help you make the right choice.
Also interested in door prices? Have a look at our comprehensive guide on double glazing door costs.
Average Total Cost for a Whole House Windows Upgrade:
Although the size and number of windows vary from home to home, understanding the typical cost of double glazed windows for standard Australian homes is still very helpful.
For example, adding double glazed windows to a 3-bedroom house (approximately 8 to 12 windows) can cost around $8,000 to $30,000 AUD.
When requesting a window quotation, be sure to specify the number of windows that need to be double glazed. This way, the supplier can provide a more accurate estimate based on this information.
Labor Costs of Installing Double Glazed Windows
Labour costs for installing double glazed windows typically range from $80 to $100 per hour. For a standard window, installation could take 1–2 hours, costing around $80 to $200 per window.
Costs may be higher in major cities like Sydney or Melbourne due to higher demand and wages.
By the way, if you’re replacing old windows, there might be additional charges for removing and disposing of the existing windows.
What Factors Affect Double Glazed Windows Cost?
The cost of double-pane windows can vary greatly depending on several factors. Below, we explore these key factors and how they influence pricing.
Different Frame Materials for Double-Pane Windows
The material you choose for your window frames plays a key role in both the overall cost and performance of your double-glazed windows. Each material offers its own benefits and trade-offs in terms of durability, insulation, and cost.
Below is a cost breakdown of the most common frame materials for double-glazed windows in Australia, including aluminium, uPVC, timber, composite, fiberglass, and steel. The prices vary based on quality, size, and style.
Frame Material of Double-Pane Windows
| Material | Price Range per m² (AUD) | Average Cost per Window (AUD) |
|---|---|---|
| Aluminium | $300 – $1,250 | $440 |
| uPVC | $300 – $500 | $500 |
| Steel | $500 – $1,700 | $900 |
| Timber | $420 – $1,500 | $800 |
| Composite | $800 – $2,000 | $1,200 |
| Fiberglass | $600 – $1,500 | $1,200 |
Last updated: April 2025 – Our costs are ballpark averages – get a window manufacturer to quote now.
| Material | Key Features | Pros | Cons |
|---|---|---|---|
| Aluminium | Durable, lightweight, corrosion-resistant | Cost-effective, great for modern designs | Poor insulation, high heat conductivity |
| uPVC | Low-maintenance, energy-efficient | Great insulation, affordable | Less aesthetic appeal compared to timber |
| Timber | Traditional look, excellent insulation | High durability, excellent soundproofing | Requires regular maintenance, expensive |
| Composite | Blend of wood and modern materials | Durable, great insulation, aesthetic appeal | Expensive, more complex design |
| Fiberglass | High insulation, low maintenance | Strong, resistant to extreme temperatures | Expensive, limited design options |
| Steel | Highly durable, industrial look | Long lifespan, resistant to external damage | High cost, requires regular maintenance |
Frame materials differ significantly in price and performance, affecting factors such as visual appeal, durability, insulation against outdoor elements, and soundproofing.
When choosing the right material, you should weigh its initial cost, lifespan, energy efficiency, and ongoing maintenance requirements. Since selecting the ideal frame material can be complex, we suggest consulting with a window supplier for expert advice.
Size of Double-Pane Windows
The size of double-pane windows plays a significant role in both the cost and functionality of the window. Larger windows require more materials, labor, and installation time, which naturally increases the price. The size also affects the window’s insulation capabilities, as larger panes may not offer the same energy efficiency as smaller ones without special features.
Standard Window Sizes
Most double-pane windows come in standard sizes, which can help keep costs down. These are typically:
- Single-hung windows: 36″ x 48″ to 48″ x 72″
- Sliding windows: 48″ x 48″ to 72″ x 72″
- Casement windows: 24″ x 36″ to 36″ x 72″
- Double-hung windows: 36″ x 48″ to 72″ x 72″
These standard sizes tend to be more affordable due to their commonality in design and manufacturing.
Custom Window Sizes
If you are looking to install custom-sized double-pane windows, the cost can increase significantly. Custom windows are typically needed for unique home designs or specific aesthetic preferences. Custom sizes may also require additional labor, particularly for installation, if they need to be specially fitted or framed.
Average Cost by Double Glazed Window Size
| Window Type | Standard Size (AUD) | Custom Size (AUD) |
|---|---|---|
| Single-Hung Window | $200 – $500 | $500 – $1,000 |
| Sliding Window | $600 – $1,500 | $1,200 – $2,000 |
| Casement Window | $500 – $1,800 | $1,000 – $2,500 |
| Double-Hung Window | $700 – $1,900 | $1,300 – $3,000 |
| Bay/Bow Window | $2,000 – $5,000 | $4,000 – $6,000 |
Last updated: April 2025 – Our costs are ballpark averages – get a window manufacturer to quote now.
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Number of Double Glazed Windows
The number of windows in a home directly influences the total cost of installing double-glazed windows. The cost of double-glazed windows is typically calculated per window, but for larger homes or renovation projects, the overall cost is also determined by the number of windows to be replaced or upgraded.
| Number of Windows | Estimated Total Cost (AUD) |
|---|---|
| 1 to 5 windows | $1,000 – $5,000 |
| 6 to 10 windows | $5,000 – $15,000 |
| 11 to 20 windows | $15,000 – $30,000 |
| 21+ windows | $30,000 and above |
The number of windows in your home significantly impacts the overall cost of double-glazing. If you’re replacing windows in multiple rooms or throughout the entire house, the total cost will rise, but you may benefit from discounts on bulk orders.
Glass Types of Double Windows
The type of glass used in double-glazing windows significantly impacts their performance, cost, and energy efficiency. Different glass options are designed to offer specific benefits, such as improved insulation, noise reduction, or increased durability.
| Glass Type | Price Range (AUD) | Advantages | Disadvantages |
|---|---|---|---|
| Standard Double Glazing | $300 – $800 | Basic insulation, cost-effective | Moderate energy efficiency, limited noise reduction |
| Frosted Glass | $500 – $1,200 | Provides privacy, aesthetic appeal | Lower transparency, can be expensive |
| Laminated Glass | $600 – $1,500 | Improved security and soundproofing | Higher cost, heavier than regular glass |
| Low-E Glass | $500 – $1,500 | Great energy efficiency, reduces UV rays | More expensive than standard glazing |
| Tempered Glass | $600 – $2,000 | Safety, strong and durable | Higher cost, can break into small pieces when damaged |
Chat to PA about Glazed Windows+86 18814426346
How Do Costs Vary Across Australian Regions?
The labour cost for installing double-glazed windows varies across different regions in Australia, which can affect the overall cost of the project. Below is a breakdown of the labour costs across key Australian cities.
| Region | Labour Cost per Hour (AUD) | Window Cost Impact |
|---|---|---|
| Sydney | $80–$100 | High demand, mid to high prices |
| Melbourne | $80–$100 | Moderate costs, benefits from VEU incentive program |
| Brisbane | $50–$80 | Lower labour costs, but higher material shipping costs |
| Perth | $80–$100 | Higher material import costs |
| Adelaide | $60–$90 | Moderate pricing |
| Canberra | $70–$100 | High demand, government low-interest loan programs available |
Common Concerns
What government incentives are available for double glazing in 2025?
Top Window Brands in Australia
When choosing double-glazed windows, selecting a reputable brand is essential for ensuring quality, durability, and performance. Here are some of the top window brands in Australia known for their reliable products and services.
1. Alspec Windows
Alspec is a top Australian distributor and designer of aluminium systems, offering a wide range of window and door systems for residential, commercial, and industrial projects.
- Price Range (AUD): $200 – $2,000
- Key Features: High-quality aluminium frames, energy-efficient designs, and a variety of styles.
- Pros: Excellent durability, good thermal insulation, and long-lasting performance.
- Cons: Higher-end designs can be expensive.
2. Stegbar Windows
Stegbar is one of Australia’s top furniture brands. This furniture company has over 75 years of experience, providing custom windows, doors, wardrobes, and bathroom screens, focusing on high-quality and innovative designs.
- Price Range (AUD): $250 – $3,500
- Key Features: Customisable designs, high-quality glass, and good noise insulation.
- Pros: Wide selection of styles and sizes, strong reputation in the market.
- Cons: Can be pricier for premium designs.
3. Breezway
Breezway is a best Australian manufacturer of high-performance windows, specializing in Altair louvre windows that provide excellent ventilation and natural lighting solutions.
- Price Range (AUD): $300 – $2,500
- Key Features: Enhanced airflow, energy-efficient glass, and modern window designs.
- Pros: Superior ventilation and natural light, ideal for warmer regions.
- Cons: Limited range for colder climates.
4. A&L Windows
A&L Windows is one of Australia’s largest manufacturers of residential windows, offering aluminium and uPVC windows, doors, and screens, focusing on energy efficiency and local production.
- Price Range (AUD): $300 – $1,800
- Key Features: Customised uPVC and aluminium windows, great energy efficiency.
- Pros: High insulation properties, cost-effective solutions.
- Cons: Limited availability for high-end custom designs.
5. PA Home
PA Home is a major player in the Australian building market, offering a range of aluminum windows & doors, including energy-efficient double-glazed options. Their product lines including kitchen cabinets, bathroom vanities, wardrobes, interior wood doors and wall panels,etc., which are widely used in new construction and renovation projects.
- Price Range (AUD): $250 – $1,500
- Key Features: Modern window designs, energy-efficient glass, and tailored to new builds.
- Pros: Affordable and reliable, perfect for standard residential projects.
DIY or Hire a Professional for Double Glazed Window Installation?
When it comes to installing double-glazed windows, you have the option to either tackle it as a DIY project or hire a professional. DIY installation can save you money, as you’ll only pay for materials. However, if you lack the necessary tools or experience, the installation process might be challenging, potentially leading to mistakes that could affect the window’s performance. Inadequate installation could even cause future issues that might require replacing the windows again.
When you hire a professional, they bring the right skills and experience to ensure the job is done correctly. Professionals can guarantee better insulation, soundproofing, and energy efficiency, preventing costly mistakes from DIY attempts.
Common Additional Components Cost of Double Glazed Windows
When it comes to installing double-glazed windows, you have the option to either tackle it as a DIY project or hire a professional. DIY installation can save you money, as you’ll only pay for materials. However, if you lack the necessary tools or experience, the installation process might be challenging, potentially leading to mistakes that could affect the window’s performance. Inadequate installation could even cause future issues that might require replacing the windows again.
When you hire a professional, they bring the right skills and experience to ensure the job is done correctly. Professionals can guarantee better insulation, soundproofing, and energy efficiency, preventing costly mistakes from DIY attempts.
Common Concerns
What government incentives are available for double glazing in 2025?
How to Save Money on Double Glazing Window Costs?
Installing double-glazed windows can significantly improve energy efficiency and comfort in your home, but the initial cost can be high. Fortunately, there are several ways to reduce the overall cost while still enjoying the benefits of double glazing. Below are some practical tips for saving money on double glazing in Australia.
- Use Window Insulation Film: A more affordable option that helps improve insulation.
- Choose the Right Materials: Opt for uPVC or aluminium frames, which are cheaper and easier to maintain than timber.
- Take Advantage of Seasonal Sales: Buy during off-peak seasons for discounts and avoid installation delays.
- Large-scale installation at one time: Reduce unit costs when replacing multiple windows.
- Choose Standard Sizes: Stick to standard window sizes to save on materials and installation costs.
- Apply for Government Rebates: Look for local rebates or energy efficiency programs to reduce your costs.
By following these strategies, you can enjoy the benefits of double glazing while keeping costs down.
Common Concerns
How Much Can You Save with Double Glazed Windows?
Is It Worth Getting Double Glazed Windows?
Double-glazed windows are a smart choice if you’re looking to improve your home’s energy efficiency, reduce noise, and increase comfort. While the initial investment may be higher, the long-term savings on heating and cooling costs make it a worthwhile upgrade. Plus, the added insulation can enhance your home’s value and create a more peaceful living environment.
Where to Buy Double Glazed Windows?
You can start by consulting with local window suppliers for expert advice or browse online for a variety of window manufacturers offering competitive prices and quality products. If you want aluminum windows, you can consider PA Window. PA Window, one of the best window manufacturers, has been trusted for many large and small projects across Australia, providing high-quality double-glazed windows suited for various needs.
For personalized quotes, feel free to send your project details to info16@pahome.com. Rest assured, your quotes and personal information will remain confidential and will not be shared publicly.
FAQs
How Much Do Double Pane and Triple Pane Windows Cost in Australia?
What Are the Disadvantages of Double Glazed Windows?
How Much Does It Cost to Replace 10 Windows?
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