Sash Windows cost in London
Vertically sliding sash windows carry a 30–40% premium over casements due to the counter-balance mechanism and, where relevant, heritage joinery requirements.
| Material | Glazing | Estimated price range |
|---|---|---|
| uPVC | Double | £900 – £2,200 |
| uPVC | Triple | £1,300 – £3,100 |
| Timber | Double | £2,100 – £6,150 |
Prices are estimates derived from verified London casement baseline data (source: Checkatrade (Apr 2025) + HomeOwners Alliance) with a sash windows-specific multiplier applied. Fully-fitted supply and install including disposal and FENSA/Certass certification.
London note: Labour rates 30% above Midlands baseline; scaffolding costs inflate period-property jobs.
Read the full sash windows cost guide for a national breakdown by material, glazing, and region.
Other window types in London
Casement
Casement prices in London.
Tilt & Turn
Tilt & Turn prices in London.
Bay
Bay prices in London.
French
French prices in London.
Roof
Roof prices in London.
Secondary
Secondary prices in London.