Bay Windows cost in Southampton
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 | £1,700 – £4,200 |
| uPVC | Triple | £2,500 – £5,900 |
| Aluminium | Double | £3,000 – £7,400 |
| Timber | Double | £4,050 – £11,750 |
Prices are estimates derived from verified Southampton 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.
Southampton note: South-east cost base pushes labour 10-15% above Midlands; port logistics keep material supply steady.
Read the full bay windows cost guide for a national breakdown by material, glazing, and region.
Other window types in Southampton
Casement
Casement prices in Southampton.
Sash
Sash prices in Southampton.
Tilt & Turn
Tilt & Turn prices in Southampton.
French
French prices in Southampton.
Roof
Roof prices in Southampton.
Secondary
Secondary prices in Southampton.
Related
All windows in Southampton · Southampton installers · cost guides