Window Cost in Ireland 2026 — Per m², Per Window, and the Full Schedule Budget
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uPVC double: €450–€750/m². Triple alu-clad: €1,000–€1,500/m². A 30 m² window schedule: €13,500–€45,000 installed.
Window cost in Ireland 2026 per m² of window, installed: uPVC double-glazed €450–€750, uPVC triple-glazed €650–€950, timber double €700–€1,100, timber triple €900–€1,400, alu-clad triple €1,000–€1,500, aluminium triple €900–€1,400. A 150 m² house has 25–35 m² of windows (about 15% of floor area). A 30 m² window schedule: €13,500–€45,000 installed. Plus €3,500–€8,500 for a sliding or bifold door. BER A1 needs triple-glazing and a thermally-broken frame. A2/A3 can use double with low-E coatings and warm-edge spacer bars. Most Irish self-builds on A1 budgets use triple-glazed alu-clad timber.
When this matters most
You're budgeting the window schedule.
When this doesn't apply
The windows are in.
Sources
NSAI, I.S. EN ISO 10077. https://www.nsai.ie/
Frequently asked questions
How much do windows cost in Ireland in 2026?
uPVC double: €450–€750/m². Triple alu-clad: €1,000–€1,500/m². A 30 m² window schedule: €13,500–€45,000 installed.
What is the cheapest window in Ireland?
uPVC double-glazed. €450–€750/m² installed. Standard for new builds. Zero maintenance. U-value 1.2–1.4 W/m²K.
What is the most expensive window in Ireland?
Triple-glazed alu-clad timber. €1,000–€1,500/m² installed. U-value 0.7–0.9. Best for BER A1 and Passive House.
When this matters most
You're budgeting the window schedule.
When this doesn't apply
The windows are in.
Where to go next
Next decision
The next step in your build sequence.
- Door Budget for a Self-Build in Ireland — Internal Doors, External Doors, and Ironmongery →
- Front Door in Ireland — Composite, Timber, Aluminium, and What the BER Counts →
- Garage Door in Ireland — Sectional, Roller, or Up-and-Over, and What the BER Counts →
- Passive House Windows in Ireland — U-value, Frame, and What the Certifier Wants →
- Sliding Doors in Ireland — Aluminium Sliders, Lift-and-Slide, and the U-value Trade-Off →
- Window Energy Rating in Ireland — What the Label Means and Why It Matters for BER →
- Window Installation in Ireland — Cavity Closer, Dpc, and the Airtightness Detail →
Branch into
Adjacent decisions at the same stage.
Watch out for
Common mistakes, hidden costs, gotchas.
Compare with
Alternative approaches worth knowing.