Casement windows cost in Ireland
In Ireland, a standard white A-rated double-glazed uPVC casement window costs €350 to €850 supplied and fitted. Colour-foiled or triple-glazed uPVC costs €550 to €1,100, flush sash casements cost €750 to €1,300, thermally broken aluminium costs €700 to €1,550, and alu-clad costs €1,100 to €1,950 per window.
Per-window prices, full-house packages by house type, and how the €1,500 to €4,000 SEAI Windows Grant reduces your net cost.
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Pick the casement frame type, approximate window count, and whether you are claiming the 2026 SEAI Windows Grant on a pre-2011 home.
Estimated supply & fit guide
€1,500 to €5,800 after €3,000 grant
Gross price: €4,500 to €8,800 · SEAI grant: −€3,000
Guide price of €4,500 to €8,800 for 10 white A-rated double-glazed uPVC casement windows before the €3,000 SEAI Windows Grant. Available to pre-2011 homes where all windows meet Uw ≤ 1.4 W/m²K and the home passes the BER Heat Loss Indicator requirement.
Ask a local installer for a priceCasement window prices by frame and house size
| Frame specification | Single window (supplied & fitted) | 3-bed semi (8–10 windows) | 3-bed semi after €3,000 SEAI grant |
|---|---|---|---|
| White uPVC (double glazed, Uw ≤ 1.4) | €350 to €850 | €4,500 to €8,800 | €1,500 to €5,800 |
| Coloured / triple-glazed uPVC (Uw 0.8) | €550 to €1,100 | €5,800 to €10,200 | €2,800 to €7,200 |
| Flush sash casement (timber-look exterior) | €750 to €1,300 | €6,800 to €11,500 | €3,800 to €8,500 |
| Thermally broken aluminium casement | €700 to €1,550 | €9,000 to €15,500 | €6,000 to €12,500 |
| Timber-aluminium alu-clad casement | €1,100 to €1,950 | €11,000 to €19,500 | €8,000 to €16,500 |
All figures include site measure, removal of old frames, installation and 13.5% VAT. For general window fitting across all styles, see windowfitters.ie.
How panes and openers affect a single window price
Two windows of the exact same width and height can differ by €200 to €350 depending on how many opening sashes (casements) are built into the outer frame:
- Single side-hung or top-hung casement (600×900mm to 900×1200mm): Lowest hardware cost — one pair of stainless friction hinges and one multi-point espagnolette handle.
- Twin side-by-side casement (1200×1200mm): A central vertical mullion with one fixed pane and one side-hung fire-escape opener, or two opening sashes.
- Three-section living room casement (1800×1350mm): Large central fixed picture pane flanked by two side-hung openers or top-hung fanlights.
- Bay or bow casement window (3 to 5 facets): Structural bay jack poles, cill weld and insulated bay roof add €1,500 to €3,500 per bay.
Real examples and installation detail
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Questions homeowners ask
Why is it cheaper per window to replace a whole house than just two windows?
Because survey, scaffolding or access towers, skip hire and a two-person fitting crew's day rate are spread across 8 to 14 openings rather than absorbed by a single minimum call-out.
Is 13.5% VAT included in Irish casement window quotes?
Residential window supply-and-fit qualifies for the 13.5% reduced VAT rate rather than 23%. Always check your written quote states '13.5% VAT included' on the bottom line.
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