Something has been shifting in the way Melbourne homeowners think about their windows. For decades, aluminium was the default frame material for most Australian homes. It was affordable, widely available, and nobody questioned it much. But that default is changing. More and more homeowners are replacing old aluminium and timber frames with uPVC double glazed… Continue reading Why Double Glazed uPVC Windows Are Becoming a Popular Choice for Melbourne Homes
Astellite is an Australian Double Glazed Windows And Doors supplier based in Melbourne; founded by two brothers, Peter and Lukas. Made from the best Double Glazing window materials available, we offer custom made windows renowned for their high quality and elegant design.
Premium Quality
We pride ourselves on the quality of our products. Aluplast windows are so durable they have an expected lifespan of 30 years or more. They are fire and wind resistant and UV stable. They provide excellent sound and thermal insulation. They are pest resistant and will never rust, corrode or rot. Aluplast windows are easy to maintain and available in a variety of designs, shapes and colour variations and can be custom made to your specifications.
Safety and Environmental Friendliness
Our double glazed uPVC windows are completely safe and environmentally friendly. They are durable, long-lasting and are 100% recyclable with no loss in quality. Aluplast windows have been tested in the harshest and most demanding regions of the world to assure the highest performance and quality ratings in the industry. Aluplast windows have been rated burglary protection Resistance Class RC2. They have been designed to resist break-in attempts and they feature toughened safety glass and a range of the finest security options.
Energy Efficiency
With energy efficiency and environmental concern being a priority for more homeowners, there’s never been a better time to make the switch to double or triple glazed uPVC windows and doors. Having at least 7 star energy windows will not only help you meet the Energy Rating Scheme for new developments and major renovations but help keep your emissions down and your energy bills low for decades to come. Shop our collection today to bring your home or office into the future and upgrade to the best of German window technology at the best price.
Sound Insulation
High-quality double and triple glazed windows can dramatically enhance sound insulation, reducing the noise inside your home and helping to create a calm and relaxing environment.
About Astellite Company
Coming from strong engineering and technical backgrounds we are extremely passionate about bringing top quality European engineering solutions and designs to Australian customers. We never compromise in offering only the best available double glazing and obsess over constantly perfecting our products to best compliment your house and lifestyle. Our motto has always been to make your home feel complete so you can enjoy the comfortable living in your perfectly designed space.
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Client's Testimonials
After considering a handful of suppliers, we chose Astellite to replace all 24 windows and external doors on our two storey 25yo Fasham home. Our original western red cedar windows, whilst in good condition, required a lot of upkeep and were poor insulators of temperature and noise – the latter becoming an increasing issue as the density of our inner-city suburb increased.
Charles and Heather
We engaged Astellite after having evaluated several other uPVC windows manufacturers. During the sales process we especially valued the support and guidance we received from Rudi and also the confidence we got from Astellite having their own in-house installation crew. So many decisions to make regarding window design, handles, architraves, colour,… who would have thought :-). So it was great to receive qualified expert advice on all aspects. A few weeks later, the competent installation crew arrived and also did a stellar job fitting the windows. Efficient, careful, tidy and resourcefull and good communication with us. We’re so happy having gone with Astellite, the new windows look and feel great – a huge transformation and value-add to our house. Thanks!
Patrick Rehm
Astellite replaced a timber 4 x 3 meter door/window combination with double glazed glass in uPVC frames in our North facing first floor apartment.
Due to the special needs of the occupants Astellite happily agreed to install on a day that suited us and completed the install in one day, a real challenge.
Paul Clayton

We are very happy with the Astellite windows and doors we have installed on our projects. The quality is excellent & they look amazing! The team at Astellite are great to deal with throughout the build process & their service is always prompt & professional. We highly recommend their products to anyone wanting to install quality uPVC windows & doors.
ZEDBUILD PTY LTD
After a lot of research and visits to many uPVC window manufacturers, we selected Astellite for their superior joinery finish. Despite the normal reno setbacks, of course nothing is ever perfect in an old house, their team of installers were exceptional and worked through every challenge, discussing how they would overcome them and making sure we were happy, every step of the way. The interactions with the whole team from sales to installations were great and everyone deserves to be recognized for their work. We now have new doors and windows that look fantastic (most people think they are aluminum and timber). The noise proofing is amazing, the look is great and the solid frames seal with a small whoosh as they close. Couldn’t be happier with the results.
T R
I’m so grateful to the whole Astellite team for their patience and expertise when renovating our windows.
Rudi really knows his stuff and was an invaluable guide in designing the right combination of formats for our space.
Jessica Bell
The new windows have really refreshed the look of our house. They’ve reduced both noise and heat, and we could not be happier. Peter and Lucas, and the rest of the crew were extremely professional, completed the job quickly, and were very helpful. Would highly reccomend, you cannot go wrong with them.
Siobhan Prasad
We looked at many different types of window and door suppliers and through the process we decided to proceed with Astellite. From raising the purchase order to the manufacture and installation the timeline was seamless A very professional team of Astellite installers arrived on a Monday and completed 15 windows and doors, various sizes, within 3 days. After the first installation we are now proceeding with doors and windows in our other properties. Job very well done!
Michael S
Damian, Peter, and the crew at Astellite are top notch professionals. The uPVC windows and doors installed are beautiful, and make the home so much more comfortable, cozy, and efficient, which was important to us as we are entirely off grid. Damian went above and beyond with the quote and planning, accommodating to a number of changes throughout due to our inability to get other tradesmen to commit. He was more than accommodating and patient and installation was very professional. The team worked hard and diligently, kept to schedule, and always picked up after themselves and treated our home with respect. I highly recommend Astellite and their beautiful uPVC windows and doors. Thank you!
Esther Barnes
We recently had seven Astellite windows installed at our house. The quality of the windows is excellent. Our home is weatherboard and was built in the 1930’s, we weren’t sure initially whether to go with new windows as we wanted to keep the character of the home. Two of the feature windows that were installed look similar to the original sash windows and look great. We are very happy with the result. Rudi was great to deal with and was prompt to respond to any queries. Mario and his team did a fantastic job with the install, they were quick, tidy and their workmanship is excellent. Highly recommend
Nairn Miller
We were quite tentative in embarking on this project. We were not sure about uPVC and with 8 windows/doors to change, it’s a huge commitment.
But now, with the work completed, we are sure we made the right decision. We could not be happier with the final project.
Christine Jeanne

Visiting the showroom in Dandenong and talking with Rudi and Sylvia gave us the confidence to go ahead with replacing 28 year old double glazed PVC 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 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

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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Blog
Astellite Double Glazing Helps Melbourne Homeowners Upgrade Comfort, Energy Efficiency and Style
Jul 07 , 2026
Melbourne homeowners are increasingly turning to double glazed uPVC windows and doors as one of the most effective ways to improve their homes. Whether it is a cold draught on a winter morning, a bedroom that never quiets down, or an energy bill that keeps climbing, your windows play a larger role in daily comfort… Continue reading Astellite Double Glazing Helps Melbourne Homeowners Upgrade Comfort, Energy Efficiency and Style
Are Tilt & Turn Windows Worth It in Melbourne?
Mar 16 , 2026
Tilt & turn windows are becoming more popular in Melbourne, especially in new homes and renovations. Many homeowners hear that they provide better insulation and ventilation, but the real question is whether they are the right choice for your home. They are often chosen for their strong sealing and flexibility, but whether they are worth… Continue reading Are Tilt & Turn Windows Worth It in Melbourne?
uPVC vs Standard Sliding Doors: Which Performs Better?
Feb 09 , 2026
Many Melbourne homeowners upgrade their windows but overlook one of the biggest sources of heat loss, drafts, and noise: sliding doors. Used daily and exposed to the elements, they play a major role in year-round home comfort. If you’re comparing uPVC sliding doors with standard aluminium sliding doors, the key differences come down to insulation,… Continue reading uPVC vs Standard Sliding Doors: Which Performs Better?
Home Security Concerns on the Rise: Can Double Glazed uPVC Windows Help Protect Your Home?
Oct 15 , 2025
Reports of home break-ins have been increasing across Victoria, leaving many families feeling unsettled and looking for stronger ways to protect their homes. At the same time, online searches for home security and window safety have surged, showing that more homeowners are taking proactive steps to improve protection. ‼️ While alarms, cameras, and reinforced doors… Continue reading Home Security Concerns on the Rise: Can Double Glazed uPVC Windows Help Protect Your Home?
Pros & Cons of Double Glazed Windows
Sep 08 , 2025
Thinking about upgrading your home with double glazed windows? You’re not alone. More and more Melbourne homeowners are making the switch for better comfort, lower energy bills, and quieter living spaces. But like any big decision, double glazing has both advantages and drawbacks. At Astellite, we believe in giving you the full picture so you… Continue reading Pros & Cons of Double Glazed Windows
Have you ever noticed condensation on your double glazed windows and wondered why it’s happening or how to fix it? You’re not alone! Condensation on double glazed windows is a common issue, but understanding its causes and knowing how to tackle it can keep your home comfortable and your windows clear. What Exactly is Condensation… Continue reading Condensation on Double Glazed Windows: Why it Happens & How to Fix It
When Does Double Glazing Need Replacing?
Jun 23 , 2025
Double glazing is known for its energy efficiency, noise reduction, and year-round comfort, but like anything, it doesn’t last forever. Whether you’re dealing with chilly draughts in winter or noticing your energy bills creeping up, knowing the signs that your double glazing needs replacing can save you from bigger problems down the line. A Modern… Continue reading When Does Double Glazing Need Replacing?
When it comes to building or upgrading a home, windows aren’t just about looks, they play a huge role in comfort, energy efficiency, and even security. That’s why double glazed windows have become a top choice for Australian homeowners. But there’s another piece of the puzzle that’s just as important as the glass itself: the frame. That’s… Continue reading What is uPVC and Why is it Ideal for Double Glazed Windows?
As the demand for uPVC windows and doors continues to grow in Australia, so does the importance of recycling and sustainable practices in the industry. At aluplast, 2024 marked a strong first year for their uPVC offcut recycling program, with results that are not just promising, but impressive. 550 Cubic Metres Diverted from Landfill In… Continue reading Closing the Loop: What Happens to Leftover uPVC Profiles?
The Truth About uPVC
Apr 03 , 2025
Safe, Non-Toxic & Certified for Australian Homes. At Astellite uPVC Double Glazed Windows and Doors, we believe in providing high – quality, sustainable, and health – conscious solutions for your home. That’s why we use Aluplast uPVC, a non-toxic premium material free from harmful chemicals. Is uPVC Safe for Your Health? There are many misconceptions… Continue reading The Truth About uPVC
Stay Cool in Summer & Warm in Winter: How uPVC Double-Glazed Windows Transform Melbourne Homes
Mar 12 , 2025
Melbourne’s unpredictable climate can swing from scorching summers to chilly winters, making it essential for homeowners to find ways to maintain indoor comfort without over-relying on heating and cooling systems. One of the most effective solutions? Double-glazed windows. These innovative windows provide superior insulation, reduce outside noise, and enhance the overall efficiency of your home.… Continue reading Stay Cool in Summer & Warm in Winter: How uPVC Double-Glazed Windows Transform Melbourne Homes
How uPVC Bifold Doors Function & Why They Matter!
Feb 28 , 2025
Melbourne’s unpredictable weather calls for smart home solutions that keep you comfortable year-round. If you’re looking to enhance your home’s style, energy efficiency, and functionality, uPVC double-glazed bifold doors are a game-changer. They combine sleek design with outstanding insulation, making them an excellent choice for modern living. How uPVC Double-Glazed Bifold Doors Work? These doors… Continue reading How uPVC Bifold Doors Function & Why They Matter!
The Smart Way to Upgrade: Double Glazing in Melbourne
Feb 11 , 2025
Melbourne’s ever-changing weather makes it essential to have a home that remains comfortable all year round. Whether it’s the scorching heat of summer or the chilly winter nights, maintaining a stable indoor temperature can be a challenge. One of the best solutions to this problem is double glazing. With energy efficiency, noise reduction, and added… Continue reading The Smart Way to Upgrade: Double Glazing in Melbourne
Let’s talk about why uPVC frames with double glazing are the smart choice! First, energy efficiency. Double-glazed uPVC windows keep your home warmer in winter and cooler in summer, reducing your energy bills. Live on a busy street? uPVC with double glazing provides superior soundproofing, so you can enjoy peace and quiet. They’re also weather-resistant,… Continue reading Why uPVC Frames with Double Glazing are the Smart Choice!
Are uPVC Windows Truly Thermally Broken?
Dec 19 , 2024
One of the key features of uPVC windows is the frame’s air chamber system. These profiles typically have four internal and four external chambers, preventing heat transfer by trapping air inside. This multi-chamber design helps regulate indoor temperatures by reducing winter heat loss and minimising summer heat gain. It also enhances sound insulation, making uPVC… Continue reading Are uPVC Windows Truly Thermally Broken?
uPVC Windows: More Than Just Plastic
Dec 04 , 2024
When you hear “uPVC,” you might picture plastic. But let’s clear this up: uPVC windows, especially those made with Aluplast profiles, are far more advanced than simple plastic. Engineered for strength, efficiency, and performance, making them a standout choice for modern homes. What Makes uPVC Windows Unique? uPVC stands for unplasticised polyvinyl chloride—a material renowned… Continue reading uPVC Windows: More Than Just Plastic
9 Home Improvement Ideas to Keep Cool in Summer
Nov 25 , 2024
When summer heat hits, keeping your home cool can significantly improve your comfort and lower your energy bills. Here are 9 practical home improvement ideas to help you stay cool and save money. 1. Install Double-Glazed Windows Installing double-glazed windows offer excellent insulation, blocking out much of the heat and noise from outside. This helps… Continue reading 9 Home Improvement Ideas to Keep Cool in Summer
5 Reasons Why Double-Glazed Windows Are a Game Changer
Oct 16 , 2024
Double-glazed windows are one of the smartest investments you can make when upgrading your home. At Astellite, we specialise in premium double-glazed windows that offer more than just aesthetic appeal. They’re an essential upgrade that can transform your living experience by improving energy efficiency, comfort, and security. Why Double Glazed Windows are a Game Changer!… Continue reading 5 Reasons Why Double-Glazed Windows Are a Game Changer
How to clean uPVC frames
Oct 07 , 2024
Maintaining the cleanliness of uPVC frames is a straightforward way to preserve the appearance of your windows. ➔ Follow these steps to help keep your uPVC frames clean: Materials Needed: Step-by-Step Guide: 1. Remove Loose Dirt Start by wiping away loose dust and debris with a dry cloth or a soft-bristled brush. Pay attention to… Continue reading How to clean uPVC frames
Top 10 Benefits For Choosing uPVC Front Doors
Aug 06 , 2024
uPVC front doors are the perfect choice for home owners in Melbourne due to their durability, low maintenance, and cost-effectiveness. Keep reading to learn why uPVC front doors are the ultimate choice for your new front door. Why Choose Upvc Front Doors? Material: uPVC is a type of plastic that is strong, rigid, and resistant… Continue reading Top 10 Benefits For Choosing uPVC Front Doors
What is uPVC Passive House Design
Jun 30 , 2024
With temperatures soaring and energy rates not far behind, now more than ever Australians are looking for new and efficient ways to keep their homes cool.
Stay Warm this Winter With uPVC Windows and Doors
Jun 05 , 2024
Windows and doors play a crucial role in maintaining a warm and comfortable home during the winter months. With the right choice of materials and design, they can significantly reduce heat loss, stopping drafts, and create a more energy-efficient living space. How uPVC Windows and Doors Keep You Warm in Winter: One standout option is… Continue reading Stay Warm this Winter With uPVC Windows and Doors
Exploring the Benefits of Tilt and Turn Windows
May 09 , 2024
Explore the Benefits of Tilt and Turn Windows a top choice amongst home owners and renovators in Melbourne.
uPVC stands for unplasticized polyvinyl chloride. It is a type of rigid plastic commonly used in the construction industry for doors, windows, piping, and other building materials. Unlike traditional PVC, uPVC does not contain added plasticisers, making it more rigid, durable and perfect for uPVC sliding windows in Melbourne. uPVC Benefits It is widely used… Continue reading Elevate Your Living Experience: The Timeless Appeal of uPVC Sliding Windows
In the realm of contemporary architecture and interior design, there’s a notable trend that has captured the imagination of homeowners and designers alike: the integration of large glass surfaces. From expansive windows that offer panoramic views to generously dimensioned sliding doors that seamlessly blend indoor and outdoor spaces, the use of glass has become synonymous… Continue reading Embracing the Trend: The Rise of Large Glass Surfaces in Modern Architecture
Why Choose Double Glazed Windows
Feb 20 , 2024
Double glazed windows provide superior insulation, reducing heat transfer and helping to maintain a comfortable temperature within your home. This can lead to energy savings by reducing the need for heating and cooling. The dual layers of glass in double glazed windows create a barrier that helps minimise outside noise, providing a quieter and more… Continue reading Why Choose Double Glazed Windows
5 Reasons Triple Glazed Windows Are a Great Investment
Feb 13 , 2024
When it comes to enhancing the energy efficiency, comfort, and overall value of your home in Melbourne, one wise investment stands out – triple glazed windows. These advanced window systems have gained popularity for good reason, particularly in a city, like Melbourne where weather conditions can vary dramatically. 5 Top Reasons To Invest In Triple… Continue reading 5 Reasons Triple Glazed Windows Are a Great Investment
Are Triple Glazed Windows Worth It in Australia?
Feb 02 , 2024
Australia’s diverse climate, ranging from scorching summers to chilly winters, poses unique challenges for homeowners seeking to maintain a comfortable and energy-efficient living environment. In recent years, the debate over the worthiness of triple glazed windows in Australia has gained traction. Benefits and Considerations of Investing in Triple Glazed Windows Are triple glazed windows truly… Continue reading Are Triple Glazed Windows Worth It in Australia?
Double-glazed windows are energy-efficient primarily due to their design.
Why Choose Fixed WIndows
Dec 14 , 2023
Fixed windows cannot be opened or closed. They are stationary and do not have hinges, handles, or other moving parts. 6 Reasons To Choose Fixed Windows in Melbourne While fixed windows do not offer ventilation like operable windows, they come with some great advantages: 1. Energy efficiency Since fixed windows do not have moving parts,… Continue reading Why Choose Fixed WIndows
The Block
Nov 22 , 2023
Astellite, your trusted window and door manufacturer, is thrilled to announce our partnership with The Block ’23 to bring comfort and joy to house number 5. We are dedicated to making a positive impact in the community and are excited to contribute to this worthy cause. Check out our incredible efforts in installing windows for… Continue reading The Block
A Simple Guide To uPVC Stacking Doors
Sep 14 , 2023
Whether building a new home or upgrading your property, installing stacking doors is a worthwhile consideration. Stacking or stacker doors are gaining traction among property owners and project managers for multiple reasons. They successfully merge aesthetic appeal and practicality, and they can be installed throughout your residential and commercial buildings. They’re particularly an excellent choice… Continue reading A Simple Guide To uPVC Stacking Doors
7 Reasons To Install Tilt And Turn Windows In Your Home
Sep 14 , 2023
Various considerations come into play when picking the right type of windows for your home. With so many options available on the market, picking the best window style can be challenging. Among the numerous window design solutions, tilt and turn windows are gaining popularity with homeowners seeking unique style and configuration options. However, their complex… Continue reading 7 Reasons To Install Tilt And Turn Windows In Your Home
4 Ways Installing Stacking Doors Benefits You
Aug 29 , 2023
Navigating the many available door options can be overwhelming. If you’re searching for a blend of elegance and utility, sliding stacking doors might just tick all your boxes. While the ideal door for your abode hinges on its design and your tastes, remember, there’s no one-size-fits-all. Whether hinged, casement, sliding, or stacking, doors offer varied… Continue reading 4 Ways Installing Stacking Doors Benefits You
A Complete Guide To French Doors
Aug 29 , 2023
With their classic design and elegant charm, French doors have always been a symbol of sophistication. Their signature glass panels, framed gracefully in wood or metal, seamlessly connect the indoors with the world outside, allowing natural light to cascade into homes and create an inviting ambience. For many homeowners, French doors represent more than just… Continue reading A Complete Guide To French Doors
A Guide To uPVC Windows: Types And Benefits
Jun 12 , 2023
Choosing the right windows for your home is essential for many reasons, including budget and comfort. As a uPVC window manufacturer, we can safely say that uPVC windows have become increasingly popular in Australia, thanks to their durability, low maintenance, and energy-efficient properties. uPVC windows have numerous unique features and benefits, all of which we… Continue reading A Guide To uPVC Windows: Types And Benefits
Is your home in need of window and door upgrades or replacements? A double-glazed windows provider can help. Knowing the differences between double-glazed windows vs. single is a great place to start. When you understand how each option performs and how they’ll benefit you, it becomes easier to make a decision on how you’ll move… Continue reading Single Vs. Double Glazing: What’s The Better Choice For Your Home?
6 Benefits Of Double Glazing Your Windows And Doors
Jun 12 , 2023
Are you interested in creating a more energy-efficient and productive atmosphere in your home? Double-glazing your windows and doors could be your answer. A reputable double-glazed windows Melbourne manufacturer can assist you throughout the process, from consultation to post-installation support. This article discusses the advantages of double-glazing, highlighting why you should consider it for your… Continue reading 6 Benefits Of Double Glazing Your Windows And Doors
How To Select A Good Quality uPVC Door
Jun 12 , 2023
uPVC (unplasticised polyvinyl chloride) doors are an excellent choice for many homeowners. However, picking one out without the help of a Melbourne manufacturer can be a challenging endeavour. Consumers need to know that not all uPVC doors are created equally. A well-researched selection will ensure you get the best value possible without sacrificing quality. This… Continue reading How To Select A Good Quality uPVC Door
Pros & Cons Of uPVC Window
Jun 12 , 2023
As a double glazed windows manufacturer and installer in Melbourne, we know first-hand why uPVC windows are popular among homeowners. From unmatched durability to outstanding energy efficiency, uPVC windows work well for all homeowners. However, uPVC, or unplasticized polyvinyl chloride, windows have their downsides. This article will explore the double-glazed windows’ pros and cons, pointing… Continue reading Pros & Cons Of uPVC Window
8 Benefits Of uPVC windows
May 17 , 2023
Are you a homeowner considering an upgrade to your windows? You might have come across unplasticized polyvinyl chloride (uPVC) windows as an option. Known for their unique features and advantages, they have taken Melbourne and other parts of Australia by storm. But what exactly sets these windows apart from traditional options, and why are they… Continue reading 8 Benefits Of uPVC windows
The Homeowner’s Guide To Buying New Windows
May 17 , 2023
Your home is your sanctuary, intended to provide comfort, protection, and warmth. One essential aspect of homeownership is maintaining and upgrading your house’s components. This process includes the windows. As the eyes of your home, they contribute to curb appeal and impact energy efficiency, security, and comfort. So, how do you determine when to invest… Continue reading The Homeowner’s Guide To Buying New Windows
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