Casement windows in Ireland
Clear per-window and full-house supply-and-fit prices, 2026 SEAI grant deductions worked out in full, and one vetted window company covering your county.
Free, no obligation. One vetted window company covering your county replies.
- €350 to €850per white uPVC casement window, supplied & fitted
- €4,500 to €8,800for a full 3-bed semi (8–10 uPVC casements)
- €1,500–€4,000SEAI Windows Grant for qualifying pre-2011 homes
- 65%of pre-2011 Irish BER homes still have older glazing
Real casement window installations across Ireland
A-rated uPVC, flush-sash, bay and triple-glazed casement windows installed in Irish homes.
Three steps to a measured written quote
- Pick your frame & window countWhite or coloured uPVC, timber-look flush sash, thermally broken aluminium or alu-clad, plus your county.
- One vetted installer contacts youWe pass your request to one vetted window company covering your county. One company rings you to arrange a home measure, not five firms.
- On-site measure & itemised quoteThey measure every opening, check Part B bedroom fire-escape hinges and U-values, and give you a written price.
What casement windows cost in Ireland
Our supply-and-fit price guide per window and for a full 3-bed semi, before and after the SEAI grant.
| Job | Typical cost | What moves the price |
|---|---|---|
| White uPVC casement window (double glazed, A-rated) | €350 to €850 per window | Uw ≤ 1.4 W/m²K · side-hung or top-hung |
| Coloured or triple-glazed uPVC casement (0.8 W/m²K) | €550 to €1,100 per window | Anthracite grey / dual-foil or 40mm–44mm triple unit |
| Flush sash casement window (flush exterior) | €750 to €1,300 per window | Sash sits flush in frame · mechanical timber-look joints |
| Thermally broken aluminium casement | €700 to €1,550 per window | Slim 50mm–65mm sightlines · powder-coated RAL finish |
| Timber-aluminium alu-clad casement window | €1,100 to €1,950 per window | Engineered pine or oak inside, maintenance-free alu outside |
| Full 3-bed semi (8–10 casement windows), white uPVC | €4,500 to €8,800 | After €3,000 SEAI grant (if eligible): €1,500 to €5,800 |
| Full 3-bed semi (8–10 windows), flush casement | €6,800 to €11,500 | After €3,000 SEAI grant: €3,800 to €8,500 |
| Full 3-bed semi (8–10 windows), aluminium | €9,000 to €15,500 | After €3,000 SEAI grant: €6,000 to €12,500 |
What's included
- Full on-site survey measuring every structural masonry opening, cill projection and bedroom Part B fire-escape clearance.
- Made-to-measure A-rated casement frames, warm-edge argon low-E glass units, stainless friction stays and multi-point espagnolette locks.
- Taking out and disposing of old windows, perimeter airtight foam and weather sealing, new external cills where needed, and internal reveal trim.
- VAT at 13.5% on residential supply-and-fit installations.
What pushes it up or down
- Number of opening sashes per window. A fixed pane with one top-hung fanlight costs less than a 3-section window with two side-hung openers and a top opener.
- Lipped vs flush sash profile. Standard stormproof (lipped) uPVC overlaps the outer frame; flush casements sit dead level with the outer face like traditional joinery and cost 25% to 35% more.
- Colour foiling. Smooth white uPVC is the base price; woodgrain or RAL 7016 Anthracite Grey outside with white inside adds roughly 15% to 22%.
- Triple glazing (0.8 W/m²K). Upgrading from double glazing (1.2–1.4 W/m²K) to 36mm–44mm triple glazing adds €120 to €200 per casement window.
- SEAI Windows Grant. Pre-2011 homes undergoing a qualifying heat-loss upgrade can claim €1,800 (mid-terrace), €3,000 (semi-D / end-terrace) or €4,000 (detached).
Calculate your casement window & SEAI grant cost
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
€4,500 to €8,800
10 windows at €350 to €850 per window (13.5% VAT included)
Guide price for 10 white A-rated double-glazed uPVC casement windows, supplied and fitted. Includes removal of old windows, friction hinges, multi-point locking and Part B fire-escape egress hinges on bedroom openings.
Ask a local installer for a pricePrices, flush frames, hinges and SEAI grants
Compare every casement frame, opening configuration, triple-glazing U-value and grant rule.
Casement window pricesWhite uPVC €350 to €850, coloured/triple €550 to €1,100, flush sash €750 to €1,300, aluminium €700 to €1,550 per window, plus full-house totals.See all prices →
Flush casement windowsHow timber-look flush sash casements (€750 to €1,300) compare with standard stormproof lipped frames on Irish homes.Flush vs lipped →
uPVC vs aluminium vs alu-cladComparing multi-chamber uPVC, slim thermally broken aluminium and Scandinavian alu-clad casement frames.Compare frames →
Top-hung, side-hung & fire escapeSide-hung vs top-hung awning openings, French casements and Part B 450mm fire-escape egress hinges.Hinges & Part B rules →
Triple-glazed casement windowsWhy 0.8 W/m²K triple glazing (€550 to €1,100) stops internal condensation and cuts road noise on exposed walls.Triple glazing guide →
2026 SEAI Windows GrantHow to claim €1,500 to €4,000 towards new A-rated casement windows (Uw ≤ 1.4 W/m²K) on pre-2011 homes.Grant rules & amounts →Casement window fitters across all 26 counties
Each county page has local SEAI BER glazing shares, median window areas (m²), Met Éireann heating degree days and CSO housing figures.
- Carlow55% older glazing · 15.84 m² semi window area
- Cavan51% older glazing · 15.56 m² semi window area
- Clare63% older glazing · 16.94 m² semi window area
- Cork59% older glazing · 16.55 m² semi window area
- Donegal59% older glazing · 13.89 m² semi window area
- Dublin55% older glazing · 20.89 m² semi window area
- Galway64% older glazing · 16.2 m² semi window area
- Kerry59% older glazing · 15.04 m² semi window area
- Kildare57% older glazing · 17.25 m² semi window area
- Kilkenny53% older glazing · 15.58 m² semi window area
- Laois54% older glazing · 14.92 m² semi window area
- Leitrim52% older glazing · 14.62 m² semi window area
- Limerick67% older glazing · 17.5 m² semi window area
- Longford49% older glazing · 14.4 m² semi window area
- Louth56% older glazing · 16.09 m² semi window area
- Mayo61% older glazing · 14.9 m² semi window area
- Meath56% older glazing · 17.4 m² semi window area
- Monaghan53% older glazing · 14.42 m² semi window area
- Offaly58% older glazing · 14.46 m² semi window area
- Roscommon50% older glazing · 14.79 m² semi window area
- Sligo56% older glazing · 15.04 m² semi window area
- Tipperary64% older glazing · 14.65 m² semi window area
- Waterford59% older glazing · 16.4 m² semi window area
- Westmeath60% older glazing · 16.8 m² semi window area
- Wexford57% older glazing · 14.6 m² semi window area
- Wicklow56% older glazing · 16.74 m² semi window area
Get a casement window price in 4 taps
Tap your job, house type, preferred frame and county. Your enquiry goes to one vetted window company covering your county for a free measure and written quote.
Common questions before you order
How much do casement windows cost in Ireland supplied and fitted?
A white A-rated double-glazed uPVC casement window costs €350 to €850 supplied and fitted. Colour-foiled or triple-glazed (0.8 W/m²K) uPVC casements cost €550 to €1,100, flush sash casements cost €750 to €1,300, thermally broken aluminium casements cost €700 to €1,550, and timber-alu-clad casements cost €1,100 to €1,950 per window.
How much does it cost to replace all casement windows in a 3-bed semi?
For a typical Irish 3-bed semi-detached house (8 to 10 casement windows), full replacement costs €4,500 to €8,800 in white uPVC, €6,800 to €11,500 in flush sash casements, or €9,000 to €15,500 in thermally broken aluminium. If the home qualifies for the €3,000 SEAI Windows Grant, subtract €3,000 from those totals.
What is a casement window?
A casement window is a window whose opening sash is attached to the outer frame by side-mounted or top-mounted friction hinges (stays) and swings outwards when you turn the handle. It is the most weather-tight and popular window style in Ireland because wind blowing against the glass presses the sash tighter onto its twin compression gaskets.
What is the difference between a standard casement and a flush casement window?
On a standard stormproof (lipped) casement window, the opening sash overlaps the outer frame by about 8mm to 10mm, creating a raised lip. On a flush casement window, the opening sash closes completely flush into the outer frame on one flat plane, replicating traditional 19th- and 20th-century timber joinery.
Is there an SEAI grant for replacing casement windows in 2026?
Yes. Under the SEAI Better Energy Homes scheme and One Stop Shop upgrades, pre-2011 homes can receive €4,000 (detached), €3,000 (semi-D or end-terrace), €1,800 (mid-terrace) or €1,500 (apartment) when replacing old windows with new units rated Uw ≤ 1.4 W/m²K as part of a whole-house Heat Loss Indicator improvement.
Do bedroom casement windows need fire-escape hinges in Ireland?
Yes. Under Technical Guidance Document B (Fire Safety), every habitable room without direct ground-floor escape should have an emergency egress window providing an unobstructed opening of at least 0.33 m², at least 450mm high and 450mm wide, with the bottom cill between 800mm and 1,100mm above the bedroom floor.
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