Double Glazing Heritage Windows

Heritage homes are admired and sought after for their timeless character and elegant detailing. The windows of a heritage or period home can help define a unique style or level of comfort but if they are not double glazed, heritage windows can be a major source of energy inefficiency.

Double Glazing Existing Heritage Windows

Double glazing heritage and period windows improves their energy efficiency, saves money and boosts in-home comfort.

Our expert team specialise in double glazing existing timber windows in heritage and period homes with custom high performance glass that fits seamlessly and enables you to retain the existing character of your home.

 

Why Double Glazing Is Essential for Heritage Homes

Maintain your home’s original character and aesthetic

Heritage homes often feature original timber windows such as sash windows or awning windows with intricate decoration and traditional proportions. Retrofit double glazing your existing heritage windows enables you to upgrade the performance of your windows while preserving their heritage style and charm.

Improved insulation, reduced heat transfer and improved comfort

A major benefit of double glazing heritage windows is improved insulation through a reduction in heat transfer. Heritage windows, which are often single paned, allow heat to pass though easily which will heat up your home in summer and make your home colder in winter.

By upgrading to double glazed windows with two panes of glass with an insulating gap, the amount of heat entering and escaping your home will stabilise, resulting in more even temperatures and improved in-home comfort.

Reduce drafts in older timber frames

Older heritage or period home windows may have small gaps that allow hot or cold air to pass into your home. Upgrading to double glazed windows with modern sealing techniques can eliminate these gaps and improve the comfort of your home all year round.

Reduce energy bills

With a more stable and even inside temperature you can cut back on air conditioning and heating usage, saving you money.

Reduce condensation

Condensation forming on windows is common in older homes especially during colder months. Double glazing your windows helps to reduce condensation by creating a thermal barrier that enables the inner pane of glass and the surrounding air to maintain a warmer temperature. This reduces the chance of condensation forming, which can lead to mould build-up on windows.

Improved Acoustic Properties 

Heritage or period homes are often located in established inner suburbs with busy roads or tram lines. Double glazed glass reduces external noise, creating quieter interiors that suit work-from-home spaces, bedrooms and living areas.

Heritage Window Styles That We Retrofit

Our double glazing team upgrades thousands of timber windows each year including many styles that are commonly found in heritage homes:

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Retain custom aesthetic with improved performance

Our expert install team at RetroFit Double Glaze will ensure that the custom look and styling of your existing windows is retained with the added performance benefits that double glazing provides.

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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Our Retrofit Double Glazing Process

Our mission is to improve energy efficiency for Melbourne homeowners one window at a time!

Our double glazing installation process is straightforward and hassle-free:

1

Measure & Quote

We visit you at home to measure up and assess your timber windows

2

Glass manufacture

We manufacture high performance glass units to fit all heritage or period windows.

3

Removal of Old Glass

We carefully remove existing glass from your windows, recycling as much waste as we can.

4

Install

Your new double glazed glass is expertly sealed into place, boosting your home’s efficiency and comfort.

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Price Match Guaranteed

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

DIY Double Glaze your Windows

Consider yourself a DIY enthusiast? Our DIY double glazing solution is available with a step by step install guide.

Double Glazed Windows Installation

Meet our expert team of double glazed windows installers. 

diy double glazed retrofit window installation team

Why Use RetroFit Double Glaze?

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Over 12 Years Experience

We specialise in upgrading existing timber windows and enhancing energy efficiency without altering your home's character.

power effective

Enhanced Home Comfort

Enjoy reduced energy expenses, improved noise reduction, and increased security with our double glazed solutions.

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Commitment to Sustainability

By improving energy efficiency, our solutions help reduce your carbon footprint, contributing positively to the environment.

Frequently Asked Questions

Yes! Our double glazing team upgrade windows in heritage and period homes and can install double glazed glass that is cut to fit heritage and custom window specifications.

Our install team can help you to choose a double glazed glass option that matches your home's style and our double glazing process enables you to retain your existing window frames.

Yes, Our retrofit approach upgrades your existing timber windows with new double glazed glass, meaning you can avoid the extra cost of full window replacement.

Most heritage window double glazing installations are completed within one to two days, depending on the number and size of windows.

Absolutely, the double pane design acts as a sound barrier, reducing external noise for a quieter home.

Yes, improved insulation means less reliance on air conditioning and heating, often resulting in noticeable savings.

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