Alu-clad windows in Donegal
Scandinavian timber-aluminium (alu-clad) windows and lift-and-slide doors across Co. Donegal, covering Letterkenny, Buncrana, Ballybofey, Carndonagh. A standard triple-glazed alu-clad window (0.78–0.85 W/m²K) costs €1,100 to €2,000 supplied and fitted, a 3-bed semi package is €11,000 to €20,000, and a 4-bed detached or self-build package with a lift-and-slide door is €16,500 to €32,000.
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- €1,100 to €2,000per triple-glazed alu-clad window, supplied & fitted
- 22.08 m²median window area on a Co. Donegal detached house BER
- 70%detached house share in Co. Donegal (3rd of 26)
- 2,211heating degree days near Letterkenny
What alu-clad windows cost in Co. Donegal
On SEAI's BER database in Co. Donegal, a typical semi-detached home has a median 13.89 m² of window area and a detached house has 22.08 m². At our installed guide rate of €1,000 to €1,500 per m² (or by window package), triple-glazed alu-clad joinery in Co. Donegal typically costs:
| Alu-clad specification (Uw 0.78–0.85 W/m²K) | Single window / door | Donegal semi-D (13.89 m²) | Donegal detached (22.08 m²) |
|---|---|---|---|
| Painted Nordic pine + powder-coated RAL alu | €1,100 to €2,000 | €13,890 to €20,835 | €22,080 to €33,120 |
| Clear-lacquered knot-free Nordic pine + alu | €1,150 to €2,120 | €14,584 to €22,085 | €23,184 to €35,107 |
| Solid European oak interior + RAL alu (+18%–25%) | €1,300 to €2,500 | €16,390 to €26,044 | €26,054 to €41,400 |
| Alu-clad lift-and-slide patio door (2.4m–3.6m) | €4,200 to €7,800 | Added per patio opening | Added per patio opening |
Our sums from Co. Donegal's median BER window areas, inclusive of 13.5% supply-and-fit VAT. Pre-2011 homes in Donegal can deduct €3,000 (semi-D) or €4,000 (detached) via the 2026 SEAI Windows Grant.
Window areas, climate and towns in Co. Donegal
- 70%detached houses in Co. Donegal (CSO Census 2022)
- 59%older double glazing on pre-2011 Donegal BERs (10th of 26)
- 2.7 W/m²Kmedian existing window U-value on pre-2011 Donegal BERs
- 2,211heating degree days near Letterkenny
In Co. Donegal, 70% of households occupy a detached home (3rd of 26 counties), while 64% of pre-2011 BER certificates record older double or single glazing at a median U-value of 2.7 W/m²K. Upgrading an existing home or glazing a new self-build in Donegal with 0.78 W/m²K triple-glazed alu-clad frames cuts window heat loss by over 70% while pairing a furniture-grade Nordic pine or oak interior with a maintenance-free powder-coated aluminium exterior.
Near Letterkenny, a normal year brings 2,211 heating degree days (the coldest of the 26 county towns). Where sites are exposed to prevailing wind and driving rain, ventilated aluminium cladding and 3-layer RAL airtightness taping keep internal reveals warm and draught-free.
Main towns covered in Co. Donegal (Census 2022 population): Letterkenny (22,549), Buncrana (6,971), Ballybofey (5,406), Carndonagh (2,768), Donegal (2,749), Bundoran (2,599).
Aluclad Window coverage across every town in Co. Donegal
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Local aluclad window coverage across Co. Donegal includes Letterkenny, Buncrana, Ballybofey & Stranorlar, Donegal Town, Ballyshannon, Bundoran, Carndonagh, Gweedore & Derrybeg, as well as Lifford, Moville & Greencastle, Killybegs, Ramelton & Milford, Dungloe, Raphoe & Convoy, Muff & Burnfoot, Ardara & Glenties and surrounding rural townlands.
Real examples and installation detail
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Donegal alu-clad window questions
How much do alu-clad windows cost in Donegal?
In Co. Donegal, a triple-glazed alu-clad window costs €1,100 to €2,000 supplied and fitted (or €1,000 to €1,500 per m²). A typical Donegal semi-D (13.89 m² of window) runs €13,890 to €20,835, and a 4-bed detached or self-build package with a lift-and-slide patio door runs €16,500 to €32,000.
Can I get a quote from architectural drawings for a self-build in Donegal?
Yes. If you have PDF architectural elevations or a window schedule for a self-build or extension in Co. Donegal, the specialist covering your county can price the full schedule before your blockwork or timber frame is ready for final laser measuring.
Do alu-clad windows qualify for the SEAI grant in Donegal?
Yes — on pre-2011 homes in Co. Donegal, replacing old glazing with 0.78–0.85 W/m²K triple-glazed alu-clad windows qualifies for the €4,000 (detached), €3,000 (semi-D), €1,800 (mid-terrace) or €1,500 (apartment) 2026 SEAI Windows Grant.
Which towns in Co. Donegal are covered?
All of Co. Donegal, including Letterkenny, Buncrana, Ballybofey, Carndonagh, Donegal and all rural self-build sites. Your enquiry goes to one vetted alu-clad window specialist covering your county.
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