3 Myths About Double Glazed Windows

Double glazed windows are a great investment for your property, not just for the lifetime value but for the lifestyle improvements they bring to your home. At a premier double glazing provider in Australia, we get many questions and enquiries from customers about certain concerns they have, which end up mostly being myths or misconceptions about double glazed windows. So today, we thought we’d go through a few myths we often hear or are asked about from customers to set the story straight and give you peace of mind when considering investing in double glazed windows for your home.

Myth 1: You need council permission to get double glazed windows

When you own a home, having the freedom to make changes and improvements is amazing but your local council can also sometimes get in the way of things with legalities and permits necessary, etc. It’s a common concern from customers, especially because double glazed windows are such an investment, they don’t want to get in a situation where the local council requests removal of the new windows or fines them for installing new windows on their own property. 

Luckily for you, most councils consider installing new windows, adding secondary glazing to existing windows and replacing double glazed windows as a ‘repair’. This means that you don’t need a building permit or any legal permission from the council to get double glazed windows on your property. It makes renovation a lot easier as you can install fresh double glazed windows, paint them and enjoy them in your home without having to consult with your local council. The only reason why you might need a permit is if you’d like to change the size or style of your windows when installing new double glazed windows, as that is a structural change that would affect the foundations of the building from what it previously was. If this is the case, then you’ll need to go through the appropriate process with your local council for a permit and approval on what you’d like to change.

Myth 2: Secondary Glazing and Double Glazed Windows are the same.

Although the concept may be similar, secondary glazing involves adding an additional window pane (or sometimes two) to an existing single window, while double glazing involves installing a new window with two glass panes separated by space. They are different in that secondary glazing doesn’t require you to install an entirely new unit so many homeowners like this option as it’s usually cheaper too. However, double glazed windows are recommended over secondary glazing as double glazed windows usually require less maintenance over time, secondary glazing can still be prone to more noise, condensation during winters and are less energy-efficient despite the insulation they provide.

Myth 3: uPVC Double Glazed Windows Aren’t Environmentally Friendly

PVC has been a named culprit of one of the materials that have an environmental impact when it comes to waste and carbon dioxide emissions but in the context of double glazed windows, we typically use uPVC and this material is actually not quite as it’s perceived. uPVC is actually a more durable form of PVC that doesn’t contain phthalates or BPA (the bad stuff that gave PVC a bad name due to its toxicity) so it is safe for the environment and for use in double glazed windows and doors. uPVC also doesn’t have the same issues as PVC in that it will not stain over time and has a less porous surface that requires a lot less maintenance. Even if our double glazed windows were to use PVC instead of uPVC, the CSIRO (an Australian research body) and consequent report updates have stated that this material has just as much impact on the environment as other alternatives.

uPVC double glazed windows are made to last for decades and the fact that they last so long, and that uPVC double glazed windows can be recycled, means that it has a longer lifespan than single-pane windows. The fact that it reduces your need to use more energy to heat or cool your home due to the increased insulation is another reason why it’s actually great for environmentally-friendly efforts. 

Those were 3 of the most common misconceptions we tend to hear from customers or those looking into investing in double glazed windows for their home. If double glazing sounds like a great investment to you, feel free to reach out and get a quote from us today!

How Do Double Glazed Windows Work?

We love to think that double glazed windows have become all the rage, especially as more homeowners are conscious of their energy efficiency, household running costs and the environmental impact of their energy usage. Double Glazed windows are such a great alternative for your home to have better insulation, reduced noise, condensation and less need to run your heating and cooling during peak temperature months. However, a common question or query we get, is how do they work? How do double glazed windows help energy efficiency? What do double glazed windows do? So today, we’ll explain it all to you.

What are double glazed windows made up of?

The concept of double glazed windows is simple, it’s essentially a window with two window panes instead of one, hence ‘double’. Although it might sound we just stick another piece of glass on top of another window pane, double glazed windows are made in a specific way that are not only custom to your window size and style but actually have a gap between the windows panes. This gap is usually about 12mm and although it looks like there’s nothing but air in between the two window panes, there is actually an odourless and colourless gas we utilise called argon gas, that creates the insulation effect of this gap between the window panes. Argon gas is already a molecule that’s in the air with nitrogen and oxygen but when installing double glazed windows, we increase the number of argon molecules in the gap between the window panes.

More argon molecules using argon gas is better than leaving the gap with normal air because argon gas is denser and heavier than oxygen molecules. This density is what creates great insulation as it takes longer for hot or cold air to go through the first window pane to get to the second window pane which ends up affecting the temperature of your home. The slow in temperature transfer from outside your home to inside is one of the ways that double glazed windows work their magic in increasing the insulation when they are installed. There are other gases that double glazers have used for installing double glazed windows such as Krypton and Xenon, which are all very stable, noble gases, but Argon is still the most widely used and popular with experienced double glazers like Windows Republic. 

Double Glazing helps Insulation and Noise

Not only is the argon gas between the two window panes a dense gas that helps insulation but it’s also a poor conductor of heat, so it protects your home from losing heat in winter and receiving heat in summer. Double glazed windows are great for reducing your electricity bills throughout the year as your home is less likely to increase or decrease in temperature, as the argon gas between window panes stop warm air from escaping or entering at window entry/exit points in your home. Double glazing isn’t just for windows either as temperature transfer can occur with doors as well, which is why we also offer double glazed doors at Windows Republic. 

One of the other benefits of having two window panes as part of double glazed windows is the reduction in noise. Whether your home is on a busy road or in the countryside next to a flock of birds, noise can be a pain wherever you live and double glazing helps to reduce noise and soundproof your home way better than single glazed windows. This noise reduction and thermal insulation is great for long term improvements to your lifestyle, to help you enjoy your home in peace and quiet, without the outdoors’ heat or cold interfering with your comfort or electricity bills. 

If you’re interested in installing double glazed windows, feel free to contact us for a quote and learn more about the benefits for yourself and your family.

What Are The Long Term Advantages Of Double Glazed Windows?

Double glazed windows offer numerous benefits, but there are a few specific reasons why they are effective and increasingly growing in popularity. The reason why these benefits stand out is that they offer more long term advantages over single glazed windows. 

The Australian climate is often harsh and ever-changing, especially in Melbourne. This can put a strain on your home, including your windows. Double glazed windows help to combat these conditions and then some in a few different ways. From increasing your insulation to noise reduction, double glazing offers a low maintenance solution for any home. 

Let’s have a closer look at these long term advantages of double glazed windows. 


You can immediately feel the positive effects of double glazed windows in your home as they offer you a fully insulated alternative, to regular single glazed windows. Double glazing helps create a comfortable and consistent home environment without having to turn up the heating or cooling. 

At Windows Republic, our windows are made with two panes of Low-E glass, insulated with gas and framed in uPVC. The space between the panes, along with two panes of glass, increases the insulation and allows you to stay warm in the winter and cool in the summer. 

Reduced energy bills

We’ve all looked at our energy bill and felt a bit light-headed. The cost of living in Australia is on the rise, and this can often be very overwhelming. Double glazed windows are a long-term, cost-effective solution to help lower your energy bills and keep them low. 

The added elements of higher quality insulation keep the warmth in and the cost of heating bills down. By reducing the amount of heating you use in your home, you’re also reducing the amount of energy used, which leads to cheaper heating bills. 

Temperature control

Bringing the two points above together, you can achieve better natural temperature control in your home. Both in summer and winter there are probably different parts of your home that are warmer or cooler than the rest of your house. The leading cause behind this is your windows, as heat can escape through them in the winter. 

You can lose up to 38% of the energy of your home through your windows. Double glazing can reduce this by adding that excellent layer of insulation, keeping the temperature of your home consistent all year round. 

Noise reduction

Noise pollution can become so bad in some cases that people move houses because of it. Whether heavy traffic or noisy neighbours, too much noise can be disruptive, distracting and even stressful and upsetting. Double glazed windows can reduce noise pollution in your home by up to 70%, though. There is no need to move or make complaints to your local council when you can take advantage of double glazing. 

Noise reduction can help you sleep better, provides a more calming and comfortable place to live in and is truly a long term advantage of double glazed windows. 

Low maintenance

As far as long term advantages go, you can’t go past an investment that is low maintenance. This means no extra costs down the line to have your windows fixed and very little needed to maintain them. 

Double glazed windows are sturdier than most single glazed windows. Here at Windows Republic, our windows, made with uPVC material, don’t need painting or any surface maintenance, unlike most wooden alternatives. Parts of the hardware might require the occasional drop of oil here or there, but our double glazed windows are stress-free, allowing more time for you to focus on the things that matter. 

Windows Republic double glazed windows

The long term advantages of double glazing are numerous and if you’re looking to make that beneficial upgrade to double glazed windows, Windows Republic is here to help. Contact us today for a free measure and quote.

How Double Glazed Windows Reduce Noise

Sometimes the four walls we call home aren’t enough to protect us from outside noise, and the culprit might be your windows. Single glazed windows provide little in the way of protection or soundproofing; thankfully, you can help reduce excess noise by installing double glazed windows instead.

Double glazed windows provide noise reduction that can make your home a quieter and more relaxing space. However, the exact amount of noise double glazed windows can block does depend on a few things. Let’s have a closer look at how double glazed windows work to reduce noise.

How does it work?

There’s a little bit of science involved to understand better how double glazed windows can reduce noise. Sound travels in the way of a pressure wave. When the wave hits a single glazed window, it vibrates the glass, which vibrates the air on the inside of the window. This vibration is what carries the sound to your ears. 

Double glazed windows provide insulation that softens sound vibrations. Instead of having a single pane of glass, double glazed windows have two panes that are separated by a space filled with gas or air. When a sound wave reaches a double glazed window, it has to make it through different chambers before it can get inside. 

By the time the sound gets to you, it’s much quieter and softer. 

How much sound does it block?

The amount of sound your double glazed windows can reduce depends on the type of window you get. A regular double glazed window has two 3mm panes separated by a 6mm gap. If this gap is wider, you can reduce outside noise even more. 

It also depends on how well your windows have been installed. For example, all our windows are made from 70mm multiple chambered uPVC designed to keep noise out. Plus, when installed, your frames will be foamed all around and professionally caulked to help eliminate pathways for noise to get through. 

However, if you live on a main road or a very busy street, you’ll see better results with triple glazed windows or acoustic glass windows. 

Difference between soundproof and noise reduction 

It’s crucial to understand that double glazed windows aren’t soundproof. They help reduce noise and the amount of sound that makes its way into your home, but they won’t block out everything. You will still hear the most common sounds such as street noise, rain and the like from inside your home. They will be significantly quieter with double glazed than with single glazed windows. 

Be careful of companies promising 100% soundproof double glazed windows, as there’s a decent chance they might be overselling their product. 

How double glazed windows can benefit you

Outside noise can sometimes affect how you feel in your home and also have a hand in your sleep, your at-home stress levels and how much you feel at home in your living environment. Double glazed windows can help ensure you’re getting a good night’s sleep, alleviate stress and work towards creating a comfortable living environment. 

Simply by keeping out that extra noise, all this is possible. 

Invest in double glazed windows

When you choose double glazed windows, you’re choosing protection from excess street noise, among many other benefits such as saving energy, moisture reduction and better temperature control. Windows Republic offers a great range of styles and designs for you to choose from that can suit your home. 

Are you looking to make the best choice you can for your home to upgrade to double glazed windows? Windows Republic is here to help. Contact us today for a free measure and quote.

How To Clean And Take Care Of Your Double Glazed Windows

Double glazed windows are an energy-efficient alternative to single glazed windows, a great money and energy-saving addition to any home. 

Among many of their advantages double glazed windows help to reduce condensation, mould and noise, not to mention their great thermal efficiency. All this does come at a bit of a cost, which is why once you’ve installed your windows, you’ll want to look after them.

The big question is whether double glazed windows need any special care compared to other windows? This can depend on the condition the window’s in and what the problem might be.

Cleaning double glazed windows

Double glazed windows are made using two pieces of glass which are separated by a gap, the gap is sealed and acts as a break between the inside and outside pieces of glass. 

If your windows are in good shape, you shouldn’t have any problems with marks or condensation inside the two panes of glass. The seal is tight enough that no dirt, dust or moisture should make its way between the two panes. 

In this instance cleaning is relatively easy and similar to how you would clean any other window:

  • Vacuum around the window frame and use a damp cloth to wipe away any dirt or grime
  • Use a solution of warm water, vinegar and maybe a dash of dishwashing detergent and wash the glass with a soft cloth 
  • Use a soft bristle toothbrush to get into those hard to reach corners
  • Buff the windows with scrunched up newspaper or a squeegee with a window-cleaning strip for a streak-free finish.

Dealing with condensation between double glazed windows

If the seal between the two panes is broken, even just a little, you will most likely notice the window getting dirty or wet on the inside. Any kind of dirt or debris getting in can cause your beautiful double glazed windows to look like a mess. 

Cleaning the inside of your double glazed window is tricky busy and near impossible to do with just a cloth, unless the window is pulled apart which is something we do not recommend. 

It’s always best to speak with a professional glazier to get their advice. Windows Republic offers a great window replacement service to instal our uPVC windows, that can withstand the harsh weathers that can cause damage to your windows. 

For anyone with a skilled hand you might be able to try some DIY fixes that can work as an interim solution while you wait to have the window properly fixed or replaced. You can:

  • Drill holes in the glass to insert a moisture absorber (which you can find at most local hardware stores)
  • Thread panty-hose or something similar through a hole to try and wipe the area clean
  • Drill some holes and blow a fan on the window

If you do choose to go down any of these paths you will need to have your window replaced eventually, as they can damage the window’s thermal integrity. 

Final care tips

There are some minor things you can do to keep your windows looking good, such as making sure you’re wiping your windows of any excess dust and dirt with water and vinegar or some type of window washing liquid. Keep away from creams containing abrasive pastes and steel wool or razors for stubborn marks. 

Take care of your window frames by doing the same, for homes in urban or coastal areas we recommend cleaning your window frames with warm, soapy water or washing liquid every three months. For rural regions, you can get away with cleaning them twice a year. 

The bottom line 

It’s important to care for your double glazed windows because they come at a decent price and because once that seal is broken all the double glazing benefits diminish. For more information on double glazed windows or a replacement, quote contact us today.

Single Glazed Windows vs Double Glazed Windows: What’s The Difference?

Windows are an essential aspect of any home. They can play a large part in the efficiency of your home and they can also be a source of unnecessary heat gain and loss. The cost of energy seems to always be rising and with around 40% of heat energy being lost through your windows, it only makes sense to want to improve your windows’ efficiency and reduce energy costs.

A great way to do this is to change your single glazed windows to double glazed windows. There are some single glazing and double glazing pros and cons but let us cover the basics for you before we get into that.

Double glazed vs single glazed

Double glazed windows are closed units made using two pieces of glass that are separated by an air gap. The gap is sealed and acts as a break between the inside and outside pieces of glass. The air gap is filled with gas which increases the insulation between the glass pieces. 

A single glazed window is made using only one piece of glass, meaning the only thing between your home and the outside elements is a pane of glass. Single glazed windows are considered to be less efficient and provide very little insulation. 

Let’s have a closer look at some of the important differences:


In the short term single glazed windows are cheaper, but they lack the thermal insulation requirements to protect your home from the heat or the cold. This usually means your heating and cooling costs are not going to be easy on the pocket. 

Double glazed windows can be expensive to install, but they offer more long term benefits like keeping your heating bill down by keeping the warm air inside your home during those colder months.


As mentioned above double glazed windows help to keep the warm air inside your home and can reduce heat loss by almost 25%. They work to better insulate your home, whereas single glazed windows lack the capacity to do so.

It is important to note that double glazing can be so efficient at insulating your home, during the warmer months it can be hard to maintain a cooler temperature. At Windows Republic, we offer a great alternative with our Low-E glass that filters radiation from the sun to reduce heat and keep your house cool in summer. 


Because double glazed windows work to better maintain your home’s temperature, not only are you not paying through the roof for heating, but you’re saving energy too. Keeping your bank account happy and lessening your homes negative impact on the environment. A benefit single glazed windows don’t offer.


You might live on the quietest street, but whether it’s the neighbour’s dog or the local bus, a street will never lack in noise. These everyday noises can be annoying to live with, but double glazed windows can be the perfect noise barrier by providing acoustic insulation helped by the layers of glass that make up these windows. 

It’s not guaranteed soundproofing, but it will help reduce noise against single glazed windows that don’t offer much in this department. 


Conventional single glazed windows lack the means to prevent condensation from occurring. When there’s a strong temperature contrast such as moist air meeting cooler objections, condensation and even mould can build up. 

The insulation capacity that double glazed windows have prevents water from forming on the glass, minimising the chance of any build-up. Because of this, you won’t have to deal with constantly needing to replace window frames or keeping mould at bay. 

Windows Republic also offers uPVC double glazed windows, that require no painting or surface maintenance other than the occasional drop of oil and a light clean a few times a year.

Double glazed takes the lead

The difference between single glazed and double glazed windows are clear, the biggest one being the numerous advantages double glazed windows can offer! 

For more information on double glazed window options Windows Republic is here to help, so please contact us today for a free measure and quote.

Double Glazed windows, a win for the environment!

Sustainable living and environmental consciousness has become a heavily talked about topic these days. With the majority of us making a conscious effort to make better choices for our planet in all aspects of our life whether it be the food we eat, the cars we drive, the clothes we wear, our general lifestyle choices are changing and for the better! Double glazed windows are another fantastic way we can take a few steps forward.

The Construction industry is huge, and as the population grows and evolves so does this
industry. If you’re trying to make sustainably smart choices when building your next home, office, or any building, double glazed windows are absolutely an option to explore! Renovating, upgrading or replacing existing windows is also a great opportunity to start moving to double glazed windows.

But why move to double glazed windows? Here’s a few of the Sustainable benefits of moving to the Glazed Side.

Saving on Energy and Gas

Double Glazed windows are a proven effective way of trapping heat inside. This means you
wont need to have your heaters pumping all winter long, saving you dramatically on your
electricity and gas bills. Double Glazed windows have an insulating layer of gas in between both panes of glass that prevents air from passing through, this means hot air stays inside for longer, vice versa when using air conditioning, this cool air also stays inside. Double glazed windows therefore help to keep buildings warmer in winter and cooler in summer. Reducing your need to rely on heating and cooling systems, lowering your bills and reducing your environmental footprint

Reducing sun damage – minimizing need to replace and repair

Double glazed windows also offer a slight tint, this helps to protect your building’s interior from sun damage. Sun damage can lead to issues like colour fade and discolouration, to paint work, furniture, materials … pretty much everything!

Double glazed windows will help slow down sun damage, this means less paint jobs, furniture upgrades and slowing down the general aging of your home and what lives inside of it. Essentially Double glazed windows can help us look after the things we own and slow down as consumers.

Recyclable Material

Glass is a sustainable, fully recyclable material, this means it is a great material to choose to
construct with. The Strength of double glazed windows, along with their fantastic insulation
added benefit of tint, means that many builds are choosing to use double Glazed windows for a greater proportion of their build.

Having more windows in our buildings means that a greater percentage of our constructions are recyclable. Before double glazed windows though, opting for a majority of a building to be windows was not a sensible choice, due to them being easy to break, poor insulation drafts and creating loud and noisy homes and buildings.

Double glazed windows offer noise cancellation, fantastic insulation and are extremely difficult to break. This means Double Glazed windows are the perfect option when looking to build a space that is made with a large number of windows. Once these materials have served their time they are able to be broken back down and reused over and over again.

Less need for paint – reducing air pollution

Paints are a huge contributor to air pollution, Choosing to opt for large windowed spaces with double glazed windows need less spaces that are needing to be painted. The fact that
double glazed windows also assist in reducing sun damage means that those spaces that are painted require touch ups less often. This means you are reducing your need to use paint, which has been listed as one of the top 5 environmental hazards. Helping not only our planet but your own lungs! Using double Glazed windows will help to make our buildings more environmentally friendly as well as an all round healthier place to be.

It’s time to add sustainability to your pros list when it comes to deciding on Double Glazed
windows. Double glazed windows are the right choice to make for our planet, our health and our wallets!