Double Glazed Windows Melbourne

Upgrade your existing timber windows with high performance double glazed glass to improve energy efficiency, lower the carbon footprint of your home and save money!

What are Double Glazed Windows?

Double glazed windows are high performance window units that consist of two panes of glass that are separated by an air, gas or vacuum gap between 0.3mm to 20mm in width. This gap between the two panes of glass increases the energy efficiency of the window and can reduce household energy usage by up to 60%.

Advantages of Double Glazed Windows

Double glazed windows provide a range of advantages compared to single glazed windows:

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Enhanced insulation

Double glazed windows improve the insulative properties of your home by creating a thermal barrier between the inside of your home and external weather conditions. The sealed air, gas or vacuum gap technology slows heat transfer and helps to keep your home warmer in winter and cooler in summer.

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Energy bill savings

Double glazing your windows helps to reduce energy bills as more stable home temperature helps you to cut back on heating or air conditioning. This can help you to save money over the long-term

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Improved security with tougher glass

With two panes of glass, double glazed windows are harder to break compared to single glazed windows. Our range includes toughened and thicker double glazed glass options.

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Noise reduction by up to 70%

Double glazed windows can significantly reduce outside noise from traffic, neighbours or barking dogs as the dual glass layers and insulating air gap act as a sound barrier. So double glazing your windows can create a quieter and more peaceful home.

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Reduction in condensation on windows

Condensation forms on windows when warm, moist air inside your home comes in contact with a cold surface, such as a window pane. Double glazed windows enable interior glass surfaces to maintain a more even and warmer temperature which reduces the chances of condensation and mold forming on windows.

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Increased property value

Homebuyers view double glazed windows as a desirable feature when they are looking for a new home. A double glazed home appeals due to long term bill savings, increased home comfort and also the environmental and sustainability factors.

RetroFit Double Glaze
4.9
Based on 107 reviews
Philip Miles
Philip Miles
00:37 03 Sep 26
Retrofit did a fantastic job in replacing single glazed panes for double glazed units on my house which is about 17 years old. Very professional, tidy and all round great job!
Niall Kennedy
Niall Kennedy
02:06 30 Aug 26
Really great service from Retrofit. Did a great job double-glazing our 1890s sash windows. Very professional, responsive and always on time. Also super neat and cleaned up everything each day. Very impressed with the job. Particular shout outs to Henry, Valentin and Al who have been fantastic!
John Hughes
John Hughes
06:56 26 Aug 26
Good job all round. Staff were pleasant, got the job done in good time, kept it tidy and cleaned up afterwards. Liam and his team did a great job on the install.
Jeff Newman
Jeff Newman
06:54 25 Aug 26
Outstanding Service and WorkmanshipWe recently had the glass in our home windows replaced and upgraded to double glazing through Retrofit Double Glazing, and we couldn’t be happier with the experience.The professional nature of the company was evident from our very first contact with Warren, through to Jarrod, who carried out the measuring and provided the quote, and our installers, Liam and Eddy. The entire process went seamlessly from start to finish.A special shout-out to Liam and Eddy, who took great care in the way they worked in and around our home. Their extremely high level of workmanship, attention to detail and professional manner gave us complete confidence in the work being carried out. They were respectful of our home and left everything neat and tidy.We also appreciated the follow-up communication from the company, keeping us informed about when the work would be carried out. This gave us peace of mind and allowed us to plan ahead.We would highly recommend Retrofit Double Glazing to anyone considering upgrading their existing windows. From the initial contact through to completion, the service, communication and workmanship were exceptional.A fantastic experience from start to finish!
Jason Mathias
Jason Mathias
04:55 25 Aug 26
The RetroFit Double Glaze install team were fantastic! They were on time, very friendly and respectful and did a brilliant job. Highly recommended.
Inna Smith
Inna Smith
05:18 30 Jul 26
Henry, Shane and Shae did a magnificent job. Very professional and efficient. Thanks for your great work. A huge improvement on our old windows.
Anne
Anne
03:14 30 Jul 26
Brilliant job from start to finish. Easy quoting process and staff helpful. On the day the team arrived promptly, and introduced themselves. Valentin and Jasmin were very professional, polite, and eager to make the installation experience positive. They are a great team! Work completed in a timely manner, windows look wonderful, and they cleaned up before they left. Communication through the day as the job progressed was wonderful. Thanks so much.
Henry Whitmore
Henry Whitmore
00:49 23 Jul 26
Warren is the best bloke i’ve ever talked to, great guy. The glass is good too
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Double Glazing Existing Timber Windows

There are additional advantages with double glazing your existing timber windows compared to replacing your window frames.

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    Cost savings

    Retrofitting is up to one third cheaper than replacing your window frames.

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    Retain original window style and aesthetics

    Retrofit double glazing your windows enables you to improve their performance while retaining the style and character of your home.

Types of Double Glazed Windows

Our professional install team specialises in double glazing a range of window types including:

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    Double Glazed Bay Windows

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    Custom Double Glazed Windows

Get in touch with our team if you have questions about double glazing your windows.

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How Much Does it Cost to Double Glaze Windows?

Retrofit double glazing your existing windows can be up to 66% cheaper than window replacement. See our pricing guide for double glazed window costs.

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Price Match Guaranteed

Find a better price on the same service and we'll match it!

Double Glazed Windows Installation

Meet our expert team of double glazed windows installers. 

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Why choose RetroFit Double Glaze?

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Trusted double glazing professionals in Melbourne

Our team has over 12 years of experience installing double glazed windows across greater Melbourne with over 10,000 window upgrades every year!

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Quality and affordability

We install high performance Australian-made double glazed units and our team pride themselves on high quality installs, treating each home as if it was their own. Our large install volume also gives us access to highly competitive pricing.

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Integrity

Our team is committed to providing honest and personalised service to each and every customer in every interaction.

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