CANBERRA: (02 6280 5300) SYDNEY: (02 6280 5300) MELBOURNE:(02 6280 5300)

Timber Retrofit Double Glazing

Existing Timber  Windows

Insert installations are used when replacing older wood windows with frames that are in good condition. In this case, the new replacement double glazed unit installed within the existing frame/sash. This installation technique is simpler than a full-frame installation.

We carefully remove the single pane of glass. this is replaced with a specially manufactured hermetically sealed double glazed unit.

Our trained consultants will discuss your requirements and inspect your windows/doors. They will specify the appropriate double glazed panel to meet Australian Standards.

The right double glazed unit will depend on the requirements for noise reduction and energy savings. For the best winter performance, Low-E glass can be used. For summer heat reduction a tinted glass unit is available.

We can also replace your entire window and replace with a new Double Glazed Window. 

Retrofit Double Glazing For Existing Timber Windows

Simple and Economical

Have you ever looked at your existing windows and thought you would like them to be double glazed? You dismissed the idea because it would be too expensive and you didn't want to go through the construction mess of pulling out the windows. Well, think again. Now it is possible to double glaze your windows at surprisingly affordable prices.

A single pane of glass provides very poor insulation because glass is a good conductor of heat. Therefore much of the heat in the room goes out the window. Install double glazing, and a layer of air is trapped between the panes. Air is a poor conductor, so far less heat is lost through the window.


Double glazing cuts down on the cold draughts off windows and significantly improves the comfort level of a home. Another benefit of this double glazing is significant noise reduction. If noise is the major problem, laminated glass can be installed to enhance the noise reduction properties of the window further.


Double Glazing consists of two panels of glass set together with a spacer in between and sealed, trapping air inside. The air inside the unit dramatically reduces the amount of hot or cold air that transfers from either side of the glass, thereby almost halving the amount of heat loss through the window. Argon gas can be introduced to give increased insulation.

Our double glazed units are constructed using the superior Super Spacer Warm Edge Technology. As there is no metal content in our insulated glass units, there is a higher insulation performance achieved compared to units constructed with an aluminium spacer bar.

Our Double glazing supplier is a Member of the Insulating Glass Unit Manufacturers Association of Australia.

Our high-quality insulating glass units are primary and secondary sealed under controlled conditions in the factory.

If requested, an inert gas, such as argon, is used to fill the internal space between the glass panels to improve the insulation further.

The space between the glass panels is created by the inclusion of a hollow spacer bar at the perimeter. This spacer bar that is filled with a desiccant material is bonded to both glass panels.

Acting through a tiny perforation the desiccant will absorb and permanently lock away any residual water vapour resulting in the only totally dry air within the sealed space between the glass panels. Trapped dry air is a very good insulator and internal condensation is not possible.

Converting your timber windows:

The existing single glass panels are replaced on site with factory sealed Double Glazed Units.

Our skilled staff will convert your windows by:

  1. Removing and discarding the old single pane glass
  2. Modifying the existing window or door frames
  3. Installing the new Double Glazed Units

We offer the best possible price and installation service within Canberra. Give us a ring at 02 62805300 for a free site survey and quote.

Our seasoned consultants will guide you from evaluating your requirements, suggesting the most suitable replacement windows and/or doors to getting the replacements and installations done while leaving your property in a tidy condition. Just Rite has been creating energy smart houses since 1977.