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In today’s climate-conscious world, your home’s windows are the gateway to energy savings, comfort, and noise reduction. But not all double-glazed windows are created equal.

At Astellite, we offer more than just premium products – we deliver lasting solutions designed for the Australian lifestyle.

Double Glazed Windows Melbourne
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Double Glazed Windows

We constantly perfect our products and implement the latest double-glazed solutions for Melbourne homes and businesses.  

Double Glazed Windows Noise Reduction

Why Choose Double Glazed Windows!


Double-glazed windows are the key to a more comfortable and sustainable Melbourne home.

Energy-efficient and modern, double-glazed windows not only help reduce energy bills but also keep your home cozy in winter, refreshingly cool in summer, and provide excellent noise reduction for a quieter living space.

  • ✔️Reduce Power Bills
  • ✔️Increase Energy Efficiency
  • ✔️Reduce Noise
  • ✔️Enhance Security
Working On Sliding Windows
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"Just replaced all our old windows with Astellite and I couldn’t be happier! The windows look amazing (double glazed uPVC windows, two coloured frames - black from the outside, white from the inside), plus the energy efficiency was evident from day one. The installation process was seamless and top notch professional. Thank you Astellite team!"

- Justyna Zylka
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"After research and consideration it was clear to us that Astellite were market leaders in the field of double glazed uPVC windows and doors. We would have no hesitation in recommending Astellite and would suggest that if you’re considering double glazed windows and doors do yourself a favour and contact their team."

- Dean and Vicki
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"The replacement of our existing windows with the Astellite uPVC double glazed windows have transformed our house both aesthetically and environmentally. The German engineering and locking systems are first class. They keep out noise, heat and the cold and look fantastic. In addition the costs were reasonable and the customer service in particular from Damian has been absolutely outstanding and any issue has been responded with quickly and efficiently. All in all a very positive experience."

- John Eric Boomsma
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"Visiting the showroom and talking with Rudi and Sylvia gave us the confidence to go ahead with replacing 28 year old double glazed windows/sliding doors in our living room in harsh beach side conditions. Technology and quality has improved remarkably over the years, backed with the high standard of German expertise, trusting that they will last the rest of our lives. Mario and staff installed the double glazed windows/doors efficiently, cleaning up after the job. Thank you for a reliable quality service. We are going ahead now with replacing more windows in our house."

- Thomson Anneke
Best Double Glazed Windows

Best Double Glazed Windows Custom Made and Installed in Melbourne.


At Astellite, we specialise in double-glazed windows, focusing on enhancing home comfort and energy efficiency. We offer solutions for installing and retrofitting double-glazed windows to help homeowners save on energy bills, improve insulation, and maintain a comfortable indoor environment throughout the year. Known for our commitment to quality and modern technology, Astellite provides new installations and upgrades for existing windows.

✔️Double Glazed Windows Installation

Our professional installation ensures the windows are properly aligned and sealed, maximising their performance and longevity. The installation typically involves removing old windows, preparing the opening, fitting the new double-glazed units, and sealing them securely.

✔️Highest quality uPVC Frames

We use industry-leading, modern uPVC frames recognised for their durability, energy efficiency, and advanced features.

✔️Custom Double Glazed Windows

These windows are designed and manufactured to meet your home’s specific requirements and preferences. Unlike standard, off-the-shelf windows, custom double-glazed windows are tailored to fit your home’s unique dimensions, styles, and performance needs.

At Astellite, we constantly perfect our products and implement the latest double-glazed solutions for Melbourne homes and businesses. 


Retrofitting double-glazed windows involves upgrading existing windows by adding an extra layer of glass, typically with an insulating gap between the panes.

This process enhances your current windows’ thermal efficiency and noise reduction without requiring a complete replacement.

At Astellite, we offer more than just premium products – we deliver lasting solutions designed for the Australian lifestyle.

Retrofitting Double Glazed Windows

This is a popular option for homeowners who want the benefits of double-glazing while retaining the character and appearance of their existing windows. Retrofitting can improve energy efficiency, reduce noise, and enhance comfort while maintaining the existing window frames and appearance.

Here’s how it works:

Assessment: The existing windows are evaluated to determine compatibility with double glazing.

Preparation: The window frames are cleaned and adjusted as needed.

Installation: A secondary pane of glass is fitted to the existing window, often with a spacer and sealing materials to create an insulating air or gas gap.

Sealing: The new glazing is sealed to ensure airtight and energy-efficient.

Lightbridge Double Glazed Glass

High Performance Double Glazing


We use leading Australian glass manufactured in Melbourne and is known for producing premium products for various residential, commercial, and architectural applications.

We specialise in a range of glass solutions, including:

✔️Energy-Efficient Glass: Offering products designed to enhance buildings’ thermal performance and energy efficiency.

✔️Architectural Glass: Providing aesthetically pleasing and functional options for modern architectural designs.

✔️Safety and Security Glass: Producing toughened and laminated glass for added safety and security.

Astellite focuses on innovation and sustainability. We provide advanced glass technologies that contribute to building functionality and aesthetic appeal. Our products are widely used in windows, facades, and other glazing applications.


Double Glazed Windows Cost!


The cost of double-glazed windows in Melbourne can vary based on several factors. Whether replacing windows with double glazing, looking for cheap double-glazed windows, or buying new double-glazed windows, the cost in Melbourne can vary based on several factors.

Window Size and Shape: Larger or custom-shaped windows cost more due to increased materials and labour.

Frame Material: The type of frame you choose—uPVC, aluminium, or timber—affects the overall cost. uPVC tends to be more affordable, while timber is often more expensive.

Glass Type: The price can be influenced by the quality and type of glass, such as low-emissivity (Low-E) coatings or gas fills (argon or krypton).

Installation Complexity: Standard installations are typically less expensive than those requiring structural changes or additional features like specialised fittings or finishes.

Additional Features: Tinting, laminated glass, or enhanced security options will increase costs.

Quantity: The more windows you need, the higher the overall cost, though bulk orders might offer some discounts.

Double Glazed Windows Cost

Double-glazed windows in Melbourne cost between $250 and $600 per square metre, including installation.

Looking For Double Glazed Doors?

Learn about Astellite’s double glazed uPVC door products.

Get in touch with Astellite today for your free measure and quote. Let us help you discover the why Astellite is Melbourne’s leading Double glazed window provider.