Glass Types

Double Glazing

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About Double Glazing

Traditional window glazing consists of a single sheet of glass within your window sash. Double glazing consists of two panels of glass which are separated by a layer of air or argon gas and then sealed.

The air creates the insulation break which greatly reduces both heat flow and thermal conductivity through the window.

Double glazing is often known as Insulated Glazing Units (IGUs). Double glazing thermal benefits makes it ideal for windows in rooms where there is the desire for more control of heat gain and loss through the glass.

Double glazing is best applied to the rooms most affected by thermal impact.

Consider why you are wanting double glazing: are there other glass types that will have the same result? Low E glass for example is often a cost-effective alternative.


  • Excellent insulation performance reducing your energy costs
  • Can minimise noise if the right glass combination is used
  • Reduces condensation
  • Different glass types such as Low-E and Laminated can be used to further increase energy efficiency and noise control


  • More expensive – consideration should be given to the longer payback period on your energy bill.

Safety glass is a product that is designed to cause minimal injury when it breaks, compared to regular annealed glass. The two most commonly used safety glass products are laminated glass and toughened/tempered glass. Both products have very different and distinct features that provide various levels of safety and security.

Yes, however, the entire panel of glass will usually need to be replaced. We recommend replacing these panels with toughened glass as the hole required for the pet door makes the glass weak. Toughened glass alleviates this issue.

Laminated glass is two pieces of glass laminated together with an interlayer. When it breaks, it cracks but holds together, like a windscreen. Toughened glass is just one panel, but has undergone a process to make it 4-5 times stronger than normal glass. When it breaks, it shatters into thousands of small pieces the size of a fingernail.

Sometimes toughened glass will shatter instantaneously, without an apparent reason. This is often due to a small flaw within the glass itself from manufacture. If the flaw is present, the glass failure could happen at any time.

In the case of a glass emergency, we will attend the same day and can usually complete the repair on the first visit.

We can offer a range of different options to reduce outside noise entering your home. There are specific glass products available now that are designed for noise reduction that will significantly reduce noise without the need to completely replace the windows

We can offer a range of different options to reduce heat entering the home. We offer tinting services, but can also provide options for a high performance glass product specifically designed to reduce the heat entering the home.

Yes, we are an industry leader in the areas of accreditation, qualified tradespeople and safety. We are a founding member of the Australian Glass & Window Association national accreditation program and are active in the glass, glazing & window industry member forums and training programs.

True Blue Glass
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