Window Costs
"How much do new windows cost?" is probably the most common question we get — and we completely understand why. It's a significant home improvement, you need to budget for it, and the internet is full of either vague non-answers or wildly inconsistent figures.
So let's be straight with you. We can't give you a single number — but we can tell you exactly what drives the cost, give you some realistic ranges to work with, and explain what to watch out for when you're comparing quotes.
Least expensive to most expensive:
Aluminium
Timber
uPVC
Why Window Pricing Varies So Much
Unlike, say, replacing a hot water system where there are a handful of clear options, windows involve a huge number of variables. Two homes on the same street could have very different window replacement costs, even if they have the same number of windows.
Here's what actually moves the dial.
Factor 1: Material
The frame material is one of the biggest cost variables:
- Aluminium — Generally the most affordable option. Standard residential-grade aluminium windows are widely available and competitively priced. Thermally broken aluminium costs more.
- uPVC — The performance is better & the manufacturing is more complex than aluminium. The payback comes from lower maintenance costs and better energy performance over time.
- Timber — Can be cost affective, meranti frame being the base timber material and then your quality hardwood, custom joinery...
Factor 2: Glazing Type
The glass you choose has a significant impact on price:
- Single glazing — The most affordable glazing option, but it offers the least insulation and is increasingly uncommon in new installations.
- Double glazing — The most popular upgrade. Significantly better for thermal and acoustic performance. Expect to pay a meaningful premium over single glazing, but the energy savings can offset this over time.
- Toughened/Laminated/Safety Glass - is required for all glass doors, sliding & hinged as well as entry sidelites. Is it also required in wet areas & for larger panes of glass over a certain sq meter.
Factor 3: Size and Number of Windows
This one seems obvious but it's worth spelling out — more windows and larger windows cost more. However, it's not always linear. There's typically a base cost per window for hardware, labour and installation, which means smaller windows can sometimes feel expensive relative to their size.
Factor 4: Installation Complexity
Sometimes a straightforward-looking job turns out to be more involved than expected:
- Heritage homes — Older homes often have non-standard openings, or timber reveals that need careful work. This takes more time.
- Height and access — Scaffold, Crane or Special access equipment.
- Structural surprises — Opening up old window frames occasionally reveals rot, water damage or structural issues that need addressing before the new window goes in.
- Renders and internal reveals — If your walls need patching, re-rendering or new internal reveals after installation, factor that into your budget.
Hidden Costs to Watch Out For
A few things that can catch people off guard:
- Disposal fees — Removing and disposing of old windows adds to the job cost; make sure it's included in your quote
- Internal finishing — Architraves or painting may be needed inside
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Timber windows - require painting internally & externally plus architraves
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Aluminium windows - requires painting to the reveals & architraves only.
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Window Coverings (curtains/blinds) - require removal & re-installation by qualified trade.
The Best Way to Get a Realistic Number
Honestly? Get a proper measure and quote for your home. It takes about 30 minutes, it's completely obligation-free, and it's the only way to get a number that actually means something for your situation.
At J-Linc, we'll come out, measure up, talk through your options across timber, aluminium and uPVC, and give you a clear quote with no nasty surprises. Give us a call or fill in the contact form and we'll get something in the diary.