Roof Windows cost in Portsmouth
Velux-style roof windows are priced close to standard casements but include a weathering upstand and flashing kit. Installation labour is higher due to roof access.
| Material | Glazing | Estimated price range |
|---|---|---|
| uPVC | Double | £700 – £1,700 |
| uPVC | Triple | £1,050 – £2,400 |
| Timber | Double | £1,650 – £4,850 |
Prices are estimates derived from verified Portsmouth casement baseline data (source: Checkatrade (Apr 2025) + HomeOwners Alliance) with a roof windows-specific multiplier applied. Fully-fitted supply and install including disposal and FENSA/Certass certification.
Portsmouth note: Conservation-area jobs in Southsea carry a premium; outer estates offer straightforward, lower-cost replacements.
Read the full roof windows cost guide for a national breakdown by material, glazing, and region.
Other window types in Portsmouth
Casement
Casement prices in Portsmouth.
Sash
Sash prices in Portsmouth.
Tilt & Turn
Tilt & Turn prices in Portsmouth.
Bay
Bay prices in Portsmouth.
French
French prices in Portsmouth.
Secondary
Secondary prices in Portsmouth.
Related
All windows in Portsmouth · Portsmouth installers · cost guides