Bay Windows cost in Belfast
Bay window pricing covers a three-light set (typically two side casements plus a fixed central pane) plus the structural head and cill. Cost per opening is roughly 2.5–3× a single casement.
| Material | Glazing | Estimated price range |
|---|---|---|
| uPVC | Double | £1,150 – £2,900 |
| uPVC | Triple | £1,750 – £4,050 |
| Aluminium | Double | £2,050 – £5,050 |
| Timber | Double | £2,750 – £8,050 |
Prices are estimates derived from verified Belfast casement baseline data (source: Checkatrade (Apr 2025) + HomeOwners Alliance) with a bay windows-specific multiplier applied. Fully-fitted supply and install including disposal and FENSA/Certass certification.
Belfast note: Northern Ireland labour costs are lower than GB averages; ferry-inflated material costs partially offset savings.
Read the full bay windows cost guide for a national breakdown by material, glazing, and region.
Other window types in Belfast
Casement
Casement prices in Belfast.
Sash
Sash prices in Belfast.
Tilt & Turn
Tilt & Turn prices in Belfast.
French
French prices in Belfast.
Roof
Roof prices in Belfast.
Secondary
Secondary prices in Belfast.