Bay Windows cost in Bath
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 | £1,500 – £3,650 |
| uPVC | Triple | £2,200 – £5,150 |
| Aluminium | Double | £2,650 – £6,450 |
| Timber | Double | £3,550 – £10,300 |
Prices are estimates derived from verified Bath 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.
Bath note: UNESCO-listed status means almost every job requires like-for-like timber replication; costs rival central London.
Read the full bay windows cost guide for a national breakdown by material, glazing, and region.
Other window types in Bath
Casement
Casement prices in Bath.
Sash
Sash prices in Bath.
Tilt & Turn
Tilt & Turn prices in Bath.
French
French prices in Bath.
Roof
Roof prices in Bath.
Secondary
Secondary prices in Bath.