If you're replacing or specifying aluminium windows in Yorkshire, working out the realistic cost is tricky — quotes vary widely depending on size, glazing spec and supplier model. This guide gives the actual 2026 supply costs and typical full-house budgets.
Quick Answer
Aluminium casement windows in Yorkshire cost £400–£900 supply-only per window depending on size, glazing and finish. A typical 3-bed semi full-house replacement (8–10 windows) is £3,200–£8,000 supply-only or £5,500–£12,000 fully installed in 2026.
Cost Per Window by Size
These are 2026 supply-only prices for double-glazed aluminium casement windows in stock colours (white, anthracite grey, jet black). Add ~10% for triple glazing, ~5–10% for non-stock RAL colours.
| Window Size | Type | Supply (Each) |
|---|---|---|
| Up to 600 × 900mm | Single side-hung casement | £400–£500 |
| 1000 × 1000mm | Single side-hung casement | £450–£575 |
| 1200 × 1200mm | Side-hung + fixed light combination | £550–£700 |
| 1500 × 1200mm | 2-light combination (open + fixed) | £625–£800 |
| 1800 × 1200mm | 3-light combination | £750–£950 |
| Up to 3000 × 2200mm | Large feature/picture window | £900–£1,400 |
Cost by Project Size
Most window orders are for whole-house replacements rather than single windows. Typical Yorkshire project costs:
| Property Type | Window Count | Supply-Only | Installed (Approx.) |
|---|---|---|---|
| 2-bed terrace | 6–7 windows | £2,400–£4,500 | £4,000–£7,500 |
| 3-bed semi | 8–10 windows | £3,200–£6,500 | £5,500–£10,500 |
| 4-bed detached | 10–14 windows | £4,500–£10,000 | £7,500–£16,000 |
| Large detached | 14+ windows | £6,500–£15,000+ | £11,000–£25,000+ |
Installation typically runs £200–£400 per window for a like-for-like aluminium swap. Add more for structural work, scaffold (anything above ground floor), or making good after old uPVC removal.
What Drives the Cost?
Several factors push the price up or down for an aluminium window order in Yorkshire.
Size
This is the biggest single factor. A 3000mm picture window is roughly 4× the cost of a 1000mm casement. If you're trying to budget, count the number of opening sashes — each one adds hardware and labour cost.
Glazing Spec
- Standard double glazing (4-20-4 argon-filled): Included in baseline pricing
- Triple glazing (4-12-4-12-4): Adds 10–15% to supply cost. Worth it for north-facing windows or if the original glazing was single-glazed Crittall
- Acoustic laminated glass: Adds 20–30%. Worth it on busy roads (Otley Road, Roundhay Road, A65)
- Solar control glass: Adds 15–25%. Worth it for big south-facing picture windows where overheating is a risk
Colour and Finish
Stock colours (RAL 9016 white, RAL 7038 agate grey, RAL 7016 anthracite, RAL 9005 black) are no extra cost. Custom RAL colours add ~£25–£50 per window and ~2 weeks lead time. Woodgrain finishes (oak, walnut, anthracite woodgrain) add ~£75–£150 per window and 3–5 weeks lead time.
Where You Live in Yorkshire
We deliver free across West Yorkshire (LS, BD, WF, HD, HX, HG postcodes) and most of North Yorkshire (YO). For projects further out (Sheffield, Hull, the dales), there may be a small delivery charge. Beeston (LS11) being our base, deliveries to LS, BD and WF are particularly fast.
How You Buy
Manufacturer-direct suppliers like us can be 15–30% cheaper than national showroom brands for the same physical product, because we don't carry showroom or marketing overheads. The trade-off: you need to be comfortable working from measurements rather than a glossy showroom visit. We can arrange sample sections and colour swatches by post for free.
When Does Aluminium Pay Back vs uPVC?
The eternal question. Honest answer:
- Pure cost comparison: Aluminium is around 30–50% more than equivalent uPVC for the same window
- Lifespan: Aluminium 30–45 years, uPVC 20–25 years. Over 30 years, aluminium is often cheaper per year
- Resale value: Slim aluminium frames typically add 1–2% to a Yorkshire property's resale value vs equivalent uPVC; estate agents in Roundhay, Harrogate and Ilkley specifically mention aluminium as a positive in listings
- Aesthetics: Aluminium gives 30–40% more glass area than uPVC for the same opening due to slimmer profiles. This is the real reason most upgraders choose it
For a Yorkshire stone property, aluminium in heritage colours (anthracite, RAL 7022 umber) sits much more sympathetically than uPVC ever can. See our guide on colour choices for Yorkshire stone houses.
What's Included in a Typical Quote?
A reputable Yorkshire aluminium window quote should include:
- The profile system (e.g. AluK 58BD, Smart Alitherm 300)
- Frame colour and finish (specify RAL number, not just "anthracite")
- Glazing spec (e.g. 4-20-4 argon-filled, U-value 1.4 W/m²K)
- Hardware (handles, friction stays, espagnolette locking)
- Any trickle vents required for Building Regs Part F
- Delivery cost (or free delivery zone)
- Manufacturer guarantee duration (10 years standard for aluminium)
If a quote doesn't itemise these things, ask for them — it makes like-for-like comparison far easier.
Get a Yorkshire Aluminium Window Quote
We supply premium aluminium casement windows from £400 each across Leeds, Bradford, Wakefield, Harrogate, Halifax, York, and the wider Yorkshire region. Send us a list of your window sizes (rough measurements are fine for an initial quote) and we'll come back with an itemised supply price within 24 hours. See our full window pricing page for the size/cost breakdown.
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Get a free, no-obligation quote for your project. We'll be in touch within 24 hours.
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