uPVC Window Cost in Australia: Price Per Window and Fitting
What uPVC windows cost in Australia, how size and installation change the price, and how they compare with the aluminium frames on most homes.
A typical uPVC window job in Australia costs $5,550 for our default home of six windows, supplied and installed with GST. Thermally broken aluminium, the frame most Australian homes already have, comes in at $5,000 for the same job, so uPVC is not automatically the cheaper choice.
To get a rough per-window figure, divide the job total by six. Treat the result as an average only. A small bathroom window and a wide sliding door sit at opposite ends of the scale.
How uPVC compares with aluminium and other frames
Here is the comparison for the same six-window job:
| Material | Typical | Usual range | Lifespan |
|---|---|---|---|
| Aluminium (thermally broken) | $5,000 | $3,900 – $6,500 | 30-45 years |
| Vinyl / uPVC | $5,550 | $4,300 – $7,200 | 25-35 years |
| Composite | $6,100 | $4,750 – $7,950 | 30-50 years |
| Timber | $8,350 | $6,500 – $10,800 | 30-60 years |
Each row shows the typical price, the usual range and the lifespan. Three points are worth knowing before you read it:
- uPVC is a different product from the aluminium already on your house. Most older Australian homes have single-glazed aluminium frames. uPVC frames are naturally better insulators, because the plastic conducts far less heat than metal.
- Thermally broken aluminium closes much of the gap. It has an insulating strip inside the frame. It is also slimmer and works better with large openings.
- Timber and composite sit at the premium end. They suit heritage streetscapes or a particular look rather than a tight budget.
What drives the price per window
We work out window prices from labour hours × local rates, plus materials, then check them against market prices and real quotes. Four things move the price most.
Size and opening style
Price follows glass area and frame complexity. A fixed pane costs the least. Awning and casement windows cost more because of their hardware. Large sliding or bifold units cost the most. A job with a few oversized openings can cost more than the same number of standard windows, so a per-window average hides a lot.
Glazing
Double glazing is where most of the benefit and most of the cost sit. Laminated or low-E glass adds to the price. If you are weighing options, ask each installer to quote the same glass on every frame type. Otherwise you are comparing frames and glazing at the same time.
Access and wall type
Upper-storey windows need scaffolding or extra labour. Brick veneer, rendered brick and weatherboard each need different flashing and making-good, and that is where quotes drift apart.
Making good
Some quotes stop at the frame. Others include internal architraves, sealing, and patching the plaster or render. Ask what is included, because finishing is a common source of surprise extras. Also ask whether old windows are removed and taken away.
The hidden cost: uPVC in a hot, bright climate
Dark-coloured uPVC can be a poor choice in strong sun, because the frames can distort if the colour is too dark for the exposure. If you want a dark frame, ask for a product designed for it, and confirm its warranty in writing. White and light colours are the safer pick on a west-facing wall.
Aluminium is the more forgiving option for large spans, coastal exposure and bushfire-prone areas. If your property sits in a mapped bushfire zone, the frame and glass requirements may restrict your choices. Check with your local council or certifier before ordering.
When uPVC makes sense
uPVC is usually a good fit when:
- you want better insulation in a cool or mixed climate and plan to stay in the home for years
- you are replacing standard-sized openings, not oversized ones
- noise reduction matters, for instance on a busy road
- you want low maintenance, since the frames need no repainting
Thermally broken aluminium is usually the better pick when:
- you have very large openings or slim sightlines in a modern design
- the home is in a bushfire zone or a harsh coastal setting
- you want a dark frame colour with fewer concerns about distortion
Staging the work
You do not have to replace every window at once. Doing the living areas and bedrooms first, which are the rooms where you notice draughts and heat most, spreads the cost. The trade-off is that several smaller visits can cost more per window than one job, and the frames may not match if you wait years between stages. Ask the installer to confirm the product will still be available.
If you are also planning wall-related work, line it up with the windows. Fitting new frames and then rendering the wall means disturbing finished edges. Our exterior rendering guide, Rendering, covers what that costs. Thinking about cooling the house as well? Split system air conditioning shows what a split system costs, and better windows can reduce how hard it has to work.
Checking your quote
Quotes to households include 10% GST, and our figures include it too. Before you sign, check each quote against this list:
- The frame material and glazing are named for every window.
- Removal and disposal of the old windows is included, or priced separately.
- Making good and finishing are stated, inside and out.
- Scaffolding or access equipment is listed where upper floors are involved.
- Warranty terms cover both the frames and the installation.
If a quote looks high or low against the figures above, run it through our "is my quote fair" tool. It compares your line items with the live cost model, so you can see which part is out of line and ask the installer about it.
For the full breakdown of how the job is priced, see our window replacement guide at Window replacement.