Secondary glazing in Brighton
From £350
| Service | Typical price in Brighton |
|---|---|
| UPVC double glazed windows | £495 - £990 |
| Sash windows (UPVC & timber) | £990 - £2,640 |
| French & patio doors | £1,430 - £3,520 |
| Bay & bow windows | £1,760 - £4,180 |
| Secondary glazing | £385 - £1,045 |
Secondary glazing for Brighton’s Regency terraces and seafront flats
The Regency squares of Kemptown, Brunswick, Adelaide Crescent and Montpelier make up some of the most protected residential streets in England, and Brighton and Hove City Council conservation officers routinely refuse full sash replacements on the front elevations. Secondary glazing is the accepted alternative, and Legacy Windows matches you with three specialists who quote a fixed price on the same brief.
Why locals in Brighton choose Legacy Windows
- Typical 2026 pricing runs from around £385 for a small horizontal slider to £1,045 for a full-height vertical unit calibrated to Brighton trade rates.
- Slim aluminium frames install inside the original sash reveal, meaning no visible change from the street and, in most cases, no need for Listed Building Consent.
- Acoustic laminated glass options cut seafront wind, gull and traffic noise by up to 45 dB, tested to BS EN ISO 10140.
- Thermal performance on a single-glazed Regency sash improves from around 4.8 to 1.8 W/m2K, meeting Part L for retained fabric.
- Every quote itemises frame colour, cavity depth, glass thickness and warranty term so the three quotes compare cleanly.
Areas we cover around Brighton
Secondary glazing briefs concentrate in BN1 around Montpelier and North Laine, BN2 across Kemptown and Regency Square, and BN3 across Brunswick and Adelaide Crescent in Hove. The thirty-four conservation areas cover almost every street where secondary glazing is preferred to a full sash change. Requests from Rottingdean, Lewes, Worthing and Shoreham are handled by the same Sussex panel.
Frequently asked questions
Will secondary glazing hide the original sash from the street? No. The secondary unit sits inside the room, behind the original sash, and is virtually invisible from the pavement. Brighton and Hove City Council conservation officers routinely favour it for that reason.
How much noise reduction can I expect on the seafront? A 100 to 150 mm cavity with a 6 mm acoustic laminated inner pane typically delivers 40 to 45 dB reduction, which turns a heavy seafront-facing bedroom into a normal one. It is the specification most commonly quoted for BN3 seafront elevations.
Does secondary glazing need consent in a Kemptown listed building? Usually no, because the original frame is not touched. Confirmation from the Brighton and Hove conservation team is straightforward, and most consents are informal.
Windows and doors in Brighton - local context
Regency squares and townhouses around Kemptown, Brunswick and Montpelier - some of the finest Regency architecture in England - plus Victorian terraces in Hanover and Preston.
Dominant era of housing stock: Regency (1810s-1830s) core with Victorian expansion.
Heritage note: 34 conservation areas covering most of Brighton and Hove - Regency frontages carry very strict listed building consent.
- Kemptown
- Brunswick
- Hove
- Hanover
- North Laine
- Rottingdean
Postcodes we cover in Brighton
- BN1
- BN2
- BN3
Not seeing your postcode? Request a quote anyway - we likely still cover it.