Window costs in Belfast
Indicative pricing for a standard 1200×1000mm casement window fully fitted in Belfast, across four common specifications.
| Material | Glazing | Size | Price range |
|---|---|---|---|
| uPVC | Double | Standard (1200x1000mm casement) | £410 - £1,030 |
| uPVC | Triple | Standard (1200x1000mm casement) | £620 - £1,440 |
| Aluminium | Double | Standard (1200x1000mm casement) | £740 - £1,800 |
| Timber | Double | Standard (1200x1000mm casement) | £980 - £2,870 |
Belfast specifics
Housing: South Belfast's Victorian and Edwardian terraces in Malone and Stranmillis retain timber sash windows; outer estates are largely uPVC.
Climate: Cool damp maritime climate year-round; persistent condensation risk in unventilated rooms makes trickle vents important.
Price driver: Northern Ireland labour costs are lower than GB averages; ferry-inflated material costs partially offset savings.
Installers: Local installer network is strong; NI-only certification schemes operate alongside British FENSA and Certass.
By window type in Belfast
Casement
See casement prices and specification in Belfast.
Sash
See sash prices and specification in Belfast.
Tilt & Turn
See tilt & turn prices and specification in Belfast.
Bay
See bay prices and specification in Belfast.
French
See french prices and specification in Belfast.
Roof
See roof prices and specification in Belfast.
Secondary glazing
See secondary glazing prices and specification in Belfast.
Next steps
Look at installers covering Belfast, or read the full cost-guide library for material and glazing deep-dives.