WHAT EXACTLY IS DOUBLE GLAZING?
Double Glazed windows and doors feature two glass panes that have been bonded together by a spacer, that are then separated by a gap between 6mm and 20mm in size. Said gap is hermetically sealed and filled with argon gas to provide an added layer of insulation.
Ideally, double glazed windows and doors should use toned or low-E glass to improve their performance.
The key differences between single and double glazed windows and doors lies in this crucial gap, and the unique benefits that it creates. Here are just a few…
1. SUITABLE FOR HOT AND COLD CLIMATES
In colder climates like Victoria and Tasmania, double glazed windows and doors are praised for their thermal capabilities. These selections play a crucial role in keeping the chilly weather from infiltrating the home.
What people may not realise, however, is that they’re also an incredible energy-efficient solution for all Australian weather conditions and climates – reducing heat loss and gain as required.
2. ENJOY COMFORT THROUGH ALL SEASONS
Windows and glass doors play a much bigger role in your home’s energy efficiency than you may think. In fact, it’s estimated that almost half of all heat loss during Winter and nearly 90% of heat gain during Summer can come from your windows and doors.
This is where the all-important gap between the double glazed glass comes in – acting as a thermal barrier between your home and the elements. Preventing warm or cool air from escaping, you can maintain a more consistent temperature year-round, despite dramatic changes in climatic conditions.


3. LOWER POWER BILLS? YES PLEASE
Thanks to the ever-changing Australian environment, energy costs continue to soar across the country. Although temperature regulation is at the forefront of our minds during both Summer and Winter, air conditioning manages to consume an astonishing 15% of the country’s total generated power.
That’s right, and over half of the energy used in Australian homes is the result of heating and cooling devices. Unfortunately, keeping the home cool in Summer and warm in Winter through air-conditioning is more unaffordable than ever.
The good news is that installing double-glazed windows and doors is one of the best ways to improve the home’s energy efficiency. So much so, that you’ll save up to 20% more on your energy bills than if you were to utilise single-glazed products.
Learn more about choosing energy-efficient windows.
4. DOES DOUBLE GLAZING REDUCE NOISE?
Not only can double glazing regulate your home’s temperature and energy efficiency – but it can also reduce pesky outside noise! Voices, animals, vehicles, planes, trains, and plenty of other nuisances – double glazed products can block them all out by 60% more than those that have single glazing. (Tip: their effectiveness is increased even further with the addition of acoustic glass!).
That all-important gap between double glazed windows also works to absorb sound energy, reducing the home’s exposure to outside clamour. Take it from the experts at WHO – prolonged noise can contribute to stress, sleep, cognitive problems, and even health conditions such as cardiovascular disease.

5. REDUCE PESKY CONDENSATION
Condensation occurs when the moist air inside your home is exposed to a cooler surface, such as a single glazed window.
Although generally just an annoyance, it does have the potential to cause severe problems for your home if you aren’t careful!
Luckily, double glazing products reduce the likelihood of condensation by removing its key cause – a cold surface of the window. The interior glass pane stays close to room temperature, reducing your condensation risk.
WHICH BRADNAM’S PRODUCTS CAN I DOUBLE GLAZE?
The best part about Bradnam’s double glazed products, is that it’s available in such a wide array of our beloved products!
From a traditional Double Hung Window, to the ever-popular Sliding Door, or even the luxurious Bi-Fold Door – this key Smart Solution is available in plentiful styles and configurations to suit every home. You can even take your pick of our multiple coloured glass and hardware to compliment your facade and interior design!
Thanks to their design, the entire Bradnam’s Signature range is available in larger sizes than most windows and doors that you’ll find on the market. And, most importantly – they’re also available in double glazing!
IS IT WORTH THE COST?
As you can see, there are several benefits to choosing double glazed windows and doors for your home.
Is the cost worth it? Suppose lower electricity bills, year-round comfort and noise reduction are what you’re looking for. In that case, double glazing windows are most definitely a wise investment!
We supply double glazing windows and doors across Australia – reach out to our experienced team today to learn how you can get them installed in your home.