
Double Glazed Windows & DoorsMelbourne
Double glazing designed around the way you live.
Premium double glazed uPVC windows and doors, supplied and installed throughout Melbourne — designed for comfort, energy efficiency and contemporary Australian homes.
- Double Glazed uPVC
- Supplied & Installed
- Melbourne Wide
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Windows & doors · No obligation
Recent Melbourne installations




































Replacement specialists
Better windows change more than the view.
Windows and doors quietly set the tone of a home — how warm it feels in July, how much traffic you hear from the street, how much light reaches the back of a room, and how the inside connects to the garden.
Northstar are specialists in the replacement of windows and doors in established Melbourne homes — the work that demands care, precise measurement and a respectful site. We also take on new builds and renovations. Everything is made to the relevant Australian Standards and backed by a 10 year warranty.


Profile accreditation
Northstar uses uPVC profile systems accredited under the uPVC Windows Alliance Industry Code of Practice.
The accreditation relates to profile performance and suitability for Australian conditions.

Windows & doors
Double glazing for Melbourne homes and projects.
Premium double glazed uPVC windows and doors, supplied and installed throughout Melbourne — for new homes, renovations, replacements and architectural projects.

Double-Glazed Windows
Premium double glazed uPVC window solutions for new homes, renovations and replacements across Melbourne.
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Double-Glazed Doors
Glazed uPVC door systems designed to create a strong, considered connection between inside and out.
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Replacement Windows & Doors
Upgrading existing glazing in established Melbourne homes, with careful attention to the original architecture.
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New Builds & Renovations
Window and door packages coordinated with homeowners, builders and designers from early planning through to install.
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Custom Window & Door Solutions
Bespoke configurations for architectural requirements that standard sizing doesn't answer.
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Five stars from Melbourne homeowners.
Every review below was posted publicly on Google by a Northstar client.
“Really impressed with the quality of the windows and the overall finish. The tradies were professional, tidy and looked after my home throughout the installation. Noticed a huge difference already!”
“I got my front door replaced by Northstar Double Glazing. Great service and will be back for the rest of the house.”
“Had my whole house of windows and doors replaced by Northstar Double Glazing. It has made a significant difference in keeping the heating in the home during winter and as I live on a busy main road the noise reduction we get from the new windows is remarkable (I now have a peaceful sleep). From sales to the installation the process was straight forward and all of the installation team are true professionals. The quality of the finishing is A grade. Highly recommend using Northstar if you want a premium product at a good price.”
Why double glazing
Designed for Melbourne's changing conditions.
Four reasons homeowners look at double glazing. Specific thermal, acoustic and energy figures are confirmed for your specific openings when we measure and quote.
- 01
Year-round comfort
Double glazing reduces unwanted heat transfer through glazed areas, helping rooms stay warmer in winter and cooler in summer.
- 02
A quieter home
When specified for the location, double glazing can significantly reduce traffic, aircraft and street noise entering the home.
- 03
Energy efficiency
Better-performing glazing reduces the load on heating and cooling systems, which is why it is a worthwhile investment in efficiency.
- 04
Architectural detail
Modern uPVC window and door systems can improve both the look and functionality of a home, with considered detailing at every opening.
Process
How a project comes together.
- 01
Discuss the project
Understand the home, the objectives and the window and door requirements.
- 02
Measure
Confirm openings, configurations and appropriate glazing solutions on site.
- 03
Proposal
Provide a clear written project quotation covering supply and installation.
- 04
Installation
Coordinate installation once specifications and timing are confirmed.
Planning a project this year?
Four clear stages, from first conversation through to installation.
Our work
Windows and doors in place.
Enquiries
Frequent questions.
Next step
Ready to talk windows and doors?
Tell us about the home and the project. We'll discuss what you're after, confirm the openings, and provide a clear written quotation.
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Windows & doors · Melbourne

