Looking to renovate your existing property or install windows for a new build? You’ll need the expertise of a professional and local window installer. There are plenty of tradies to choose from on hipages, but first it’s important you understand exactly what a window installer does and what you can expect from them.

What does a window installer do?

Using a professional to install your windows means they will be installed to the manufacturer’s requirements and to the best standards. Also be sure to get all warranties and paperwork from both the manufacturer and the professional who installs your windows. Some of the things a window contractor can help with include:

Window installation 

When installing windows, a windows contractor will typically:

• Take accurate on-site measurements
• Ensure the manufactured frames are the correct dimensions
• Utilise flashing in and around the window frame
• Fully insulate and seal the window frame
• Protect the window during post-construction and plastering
• Complete the interior detailing and paintwork. For more, see windows installation.

Whole window replacement

You may periodically need to replace your windows, particularly if you live in an old property without adequate insulation, or perhaps the latest style you desire.

Window glass supply

When it comes to the glass for your windows, you will need to check that all products comply with current Australian Standards relating to glass and glazing, and that glass replacement is left to trained and qualified glaziers, who have the experience and appropriate glass handling equipment. For more, see window glass supply & replacement.

Supplying window frames

Window frames are an integral part of the structure of a home, providing support for a variety of glazing options, as well as adding aesthetic detail to the interior and exterior. If frames don’t fit or are warped, they can let moisture or drafts into your home. This can lead to more maintenance being required, as well as increased energy bills. 

Window repairs

Windows are unfortunately susceptible to being damaged. This may be the glass, or an element of the window frame, such as the rollers or locks. A windows supplier will help take care of any window repair work in these instances, as glass installation and repair is a particularly specialised task.

What should you consider when choosing windows?

The basics that you need to consider when choosing a window is:

• Size: The right-sized windows will suit the space where they are being installed and provide the right amount of ventilation, natural light and security.
• Shape: Short, wide windows will let in a wide but shallow amount of light, while tall and narrow windows let in a narrow but deep amount of light.
• Security: As intruders favour windows or doors when trying to break into a home, windows need to be able to be locked – preferably with a key. Windows should be locked whenever they are not in use. 
• Placement: Try and place your windows so that they suit your needs for different times of the day. East-facing windows will get the morning sun, west-facing windows will receive the afternoon sun, and north-facing windows will receive the most light overall. South-facing windows won’t get much light but they can still be used for ventilation purposes.
• Ventilation requirements: As a general rule, each room in the house should have a minimum 5% of ventilation but preferably it should be 10%.
• Glazing: From toughened glass to laminated, tinted, patterned, reflective and low-e glass, there are many types of glazing to choose from for your windows.
• Energy efficiency: Choosing energy-efficient windows is one of the easiest ways to ensure your home is comfortable year-round. You’ll also be saving money on your energy bills and reducing the demand on the environment.

An interior designer or architect will be able to help you with window selection or placement.

What are the most common types of windows?

There are several different types of windows to suit any style of home, such as:

• Sliding: Sliding windows slide horizontally along a runner. They are very versatile windows and relatively cheap. Sliding windows suit most styles of home, take up little space and being low maintenance. They are lockable for extra security.
• Fixed pane: These windows can’t be opened and are essentially a sheet of window glass set within a frame. Because they remain in place, they can be made into any shape or size and they are easily dressed with curtains or other window dressings.
• Bi-fold: These operate in the same fashion as bi-fold doors, with the windows opening inwards or outwards in a concertina way. As these windows let in a lot of light and air, they are well-suited to entertaining. They are also lockable.
• Double-hung: Double-hung windows are common and have two separate panels that move up and down independently. These windows are lockable, let in as much or as little air as you want, and allow you to fit flyscreens. They also accommodate a variety of window dressings.
• Casement: These windows open outwardly to as far as 90 degrees. The windows are then held open with a metal rod. Because they open so far, they are a good source of ventilation. However, flyscreens for casement windows need to be custom-made and they are not lockable.
• Awning: These open outwards using a chain winder, and the chains hold the window open at the desired position. Awning windows are suitable for spots that are difficult to reach or where the window may be partially obstructed.
• Louvres: Louvre windows are made up of panels of slatted glass that turn to the desired position. They are great for ventilation as they let in maximum air. It’s even possible to have them open while it’s raining if they are turned to the correct position.

How much does a window installer cost?

The cost of a window installer in Australia depends on several factors – the size and number of windows, the type of window installation need, and where you live. According to Gusto Emergency Glass Replacement, the cost of installing windows generally runs between $450 to $1,200 per window.

However, the final cost may also include additional expenses – labour, for example, is usually charged at between $70 and $120 per hour, according to Gusto. It's best to obtain a quote from a professional window installer to get an accurate estimate of the full cost of installation.

What to ask when hiring a local window installer

When sourcing window installers on hipages, it’s a good idea to speak to a number of different tradies and get quotes from them to compare. You should also ask a few important questions like:

• What’s your experience with window installations?
• What are your qualifications?
• Are you licensed and insured to do window installations?
• What’s the estimated cost and timeline for this job?
• Is there anything I should know about the installation process?
• What warranties or guarantees will you provide for your work?

Costs and prices in this article are indicative and should only be used as a guide. They also vary locally and are subject to market forces.