Should I Replace All of My Windows at Once?

When considering window replacement, a common question is whether to replace them all at once or individually. Ideally, it is better to replace all of the windows at once, rather than choosing to replace the odd window. If windows need replacing, opting to do it all at once will improve energy efficiency and may even cost you less in the long run. However, sometimes budget and circumstances will not allow it. In this article, we explain the signs to look out for to replace windows, how to decide if they should be replaced all at once, and types of window replacement.

What are the signs you need new windows?

Depending on the type of window installed and conditions, windows may have a lifespan of anywhere between 15 and 30 years. Once they reach this age, they may show signs of deterioration and become less efficient. Signs to look out for that show you need new windows include:

• Visible damage: The most obvious sign that windows need to be replaced is visible damage. This could be broken glass, damaged, cracked or warped window frames.
• Increase in condensation: A small amount of condensation is acceptable, particularly if there is extreme temperature difference between inside and outside. However, when condensation increases it is a sign that windows may need to be replaced. Condensation is a sign that the window seals may not be working properly, and are letting in moisture that forms condensation. If you have double-glazed windows with condensation, this is a sign that the air tight seal has failed and the insulating gas is escaping.
• Draughts: Windows can get draughty as they deteriorate and air seeps through the openings around the window. Air coming into the house is not only uncomfortable, it reduces energy efficiency and potentially increases bills.
• Increased electricity bills: When windows are still working well, they increase energy efficiency in a home and reduce bills. A sign your windows might need replacing is when electricity bills increase. Replacing old windows with energy efficient windows can reduce heat loss or heat gain by up to 30 percent.
• Difficult to open or close and secure: Windows can have moments when they are harder to open or close, particularly if there is extreme heat outside. However, when windows become increasingly difficult to open or close, they can end up getting stuck which is a strong sign they may need to be replaced.
• No longer dampen sound: When you start to hear more noise from the outside world, it is a sign your windows are not performing as they used to. Most windows have some form of sound protection, however when seals are broken or cracks occur, the noise can start to travel through again. In the case of double-glazed windows that are known for noise reduction, a marked increase in sound is a sign they also need replacing.
• Carpet and furniture near the windows are fading: If you notice the carpet, furniture or rugs are fading by being close to the windows, it means you don’t have the type of UV protection offered by high quality windows. One of the best replacement windows would be to opt for Low-E glass that reduces UV rays and will save precious furnishings and carpet.
• Update style/curb appeal: If you are not happy with the curb appeal of your home, it may be a sign you need to replace your windows. Replacing old windows with new, modern and stylish windows can have a transformative effect for the home. New windows are available in a large range of options and styles from picture windows to bay windows and modern tilt and turn windows.

When Should I Replace All My Windows at Once?

While replacing all windows at once may be a big project, there are times when a whole house replacement is the best option. Let’s look at the circumstances when you will need to replace all your windows at once to achieve a desired outcome.

• Home renovation: If you are undertaking a home renovation, it will be important to replace all of the windows at once to achieve a consistent look throughout the home. Renovation is all about improving the aesthetics of your home and whole house window replacement is a great way to achieve that. By replacing windows in stages, you run the risk of not being able to get the same windows if the style or colours are discontinued.
• Energy efficiency goals: If you are serious about creating a sustainable and energy efficient home, you will want to consider replacing every window with an energy efficient alternative. To replace just one or two will help somewhat but every other window will not be working as efficiently.
• If you can afford it: Replacing all the windows at once is the best outcome with a plethora of benefits. If you can afford to replace all windows at once, that is a significant factor in undertaking a whole house replacement.

Benefits of Replacing All Windows At Once

Should you decide to replace the windows all at once, there are many benefits to be enjoyed. These include:

• Can be less expensive in the long run: By purchasing and replacing all the windows at once, you can often save money in the long run. While the upfront cost will be more, many manufacturers will charge less the more windows you install. Window prices and installation are likely to increase each year so you may end up spending more by splitting the order. Purchasing all at once guarantees the lower, current price.
• Window style assurance: By replacing whole house windows at once, you are assured of having the right window colour and style. You don’t run the risk of discontinuation of the window style you chose.
• Energy efficiency: By replacing all windows at once, particularly if you opt for energy efficient windows that are double-glazed, you guarantee maximum energy efficiency in your home.

When Should I Replace One or Two Windows at a Time?

While it is best to replace all windows at once, sometimes that is not possible. There may be constraints like budget, or perhaps only a couple of windows have deteriorated and need replacing. Let’s examine reasons you might only replace one or two windows at a time.

• Insufficient funds: One of the main factors to consider when deciding to replace windows is going to be budget. If you cannot afford to replace every window, you may have to consider replacing them in stages.
• Window condition: The condition of the windows will impact how many need replacement. If there are only one or two in poor condition, you will only need to replace these, while trying to match the existing windows as much as possible.
• Want one different style or size window: If you have one particular window you want to replace with a different style or size, this would be a reason to only replace one window. You might want to replace a regular kitchen window with a garden window style or a larger window to let in more natural light.

Benefits of Replacing One or Two Windows at a Time

If you choose to replace one or two windows at a time, there are still benefits to be gained. These include:

• You can budget: By replacing one or two windows at a time, you can save and budget for each one. This takes the pressure off having to pay a larger upfront amount for a full house of windows.
• You can plan it out: You can plan your window replacement in phases, working out which rooms to do each time. You may only want to do the windows at the front if your aim is aesthetic appeal. If you have a double storey home, you may want to replace windows on the ground floor first and then the top floor later.
• Minimal disruption: There will only be a disruption to the rooms being replaced, not the whole house.

How To Choose The Right Window Replacement

Whether replacing all windows or just one or two, it is important to choose the right windows for your home. When choosing the right window replacement, you need to consider the right combination of frames and glass, as well as window style.

Window Frame Materials

The window frame is the structural support that holds the glass in place. Your choice of window frame materials will not only impact the aesthetic of the home but influences thermal performance. These are the four main window frame material types to choose from.

• Timber: Timber window frames are eco-friendly, natural and timeless. They can be good insulators and offer flexible options in terms of colour and style. However, timber frames do not have the longevity of other window materials, require significant maintenance, and can be more costly than other options.
• Aluminium: Aluminium window frames are known to be low maintenance, strong and offer a variety of colour options for any window style. This is a popular material for window frames as they are weather resistant, making them a good choice for a variety of locations. They are much more weather resistant than timber frames. However, they are generally less energy efficient than other materials.
• uPVC: uPVC window frames are constructed from polyvinyl chloride which makes them rigid, durable and sustainable. They are affordable, energy efficient and low maintenance but may not be as durable and aluminium. uPVC is a lightweight material which makes it ideal for homes and commercial buildings but not suitable for high-rise buildings.
• Fibreglass: Fibreglass window frames are made from glass fibre reinforced polyester. They are strong and durable, with low heat conductivity and highly efficient thermal performance. They are more expensive than aluminium and may not be suitable for areas with extreme temperature variations.

Window Style

The type of window you choose will impact functionality and aesthetics. These are the most common window styles to choose from.

• Awning: These windows have a hinge at the top, so you can push them out from the bottom. They are convenient because they minimise reach and allow more flexibility over the ventilation required.
• Sliding: This is a classic and popular design that allows you to open the window horizontally. These windows can be large or small and allow the maximum amount of fresh air into your home.
• Double hung windows: These windows usually have two panels that move up and down. There is an alternative to traditional double hung windows with double hung look alike windows that open inward rather than sliding up and down for natural ventilation without sacrificing security.
• Bifold windows: These windows are used to open up large spaces, often when bridging the gap between an indoor outdoor space. Bifold windows are on a track with two or more sections that open back onto each other. uPVC bifold windows are energy efficient, low maintenance and weather resistant.
• Fixed, corner or bay windows: These are the windows that do not open or close and usually consist of one large piece of glass. They are durable, low maintenance and easy to repair as they have no moving parts.

Types of Glass

The types of glass you choose for your windows will impact the energy efficiency of your home. The three main types of glazing to choose from are:

• Single glazed: A single glazed window is the least energy efficient type of window, as it uses only one pane of glass. While single glazing may be less expensive initially, energy bills will be close to doubled compared to using more energy efficient glazing.
• Double glazed: This type of glazing has two layers of glass that are separated by a small, gas filled gap. Because of this construction, double glazed windows reduce heat transfer in the home, ensuring lower energy using and lower electricity bills.
• Low-E glass: This type of glass is coated in an invisible layer of metallic oxide which deflects UV rays and reduces heat transfer. The Low-E stands for low emissivity and this type of glass is an excellent way to ensure energy efficiency, particularly when combined with double glazing.

FAQ

• How much does it cost to change a window?
  • $150 – $750 for aluminium windows
  • $250 – $1,100 for composite windows
  • $350 – $750 for vinyl/UPVC windows
  • $800 – $2,000 for timber window frames
• How long does window replacement typically take?
  • A single window can take a few hours. A whole house can take a few days.
• Can replacing windows increase the value of my home?
  • Yes it can. Energy savings, security and aesthetics can all raise the value of your home.
• Can I replace the windows myself, or should I hire a professional?
  • We recommend a professional to get it right the first time and to avoid voiding any warranty.