Secondary glazing in Bristol
From £350
| Service | Typical price in Bristol |
|---|---|
| UPVC double glazed windows | £441 - £882 |
| Sash windows (UPVC & timber) | £882 - £2,352 |
| French & patio doors | £1,274 - £3,136 |
| Bay & bow windows | £1,568 - £3,724 |
| Secondary glazing | £343 - £931 |
Secondary glazing quotes for Clifton, Kingsdown and Cliftonwood
Secondary glazing is often the only compliant thermal or acoustic upgrade for Bristol’s listed Georgian core: the crescents and townhouses of Clifton and Kingsdown, the terraces of Cliftonwood, and any street-facing sash on a Grade II property where UPVC would never receive consent. Legacy Windows is a quote comparison service that shortlists installers specialising in reversible internal units sized to the original reveal.
Why locals in Bristol choose Legacy Windows
- South West pricing on internal secondary units: £345 to £930 per opening in 2026
- Installers we match you with fit horizontal sliders, vertical sliders and lift-out panels to the original reveal, without touching the primary sash
- Acoustic laminate glass is quoted separately for flats above the A4 Portway, Whiteladies Road or the harbourside road network
- Listed Building Consent applications are handled where the primary window is on a Grade I or II property (common in Clifton)
- Every quote separates frame, glass, brushes and installation so a three-quote comparison is like-for-like
Areas we cover around Bristol
Demand is heaviest in BS8 Clifton and Hotwells, BS6 Kingsdown and Cotham, and Cliftonwood, plus cross-border listed properties in Bath (BA1 and BA2 UNESCO World Heritage core) and Cheltenham (Montpellier, Pittville Regency). Bristol harbourside apartment conversions are the other recurring source for acoustic-driven briefs.
Frequently asked questions
Does secondary glazing need Listed Building Consent in Clifton? Usually yes on a Grade II listed Clifton townhouse, though Bristol City Council heritage officers recognise internal secondary units as reversible and low-impact. The application is far simpler than replacing the primary sash. Installers in our network prepare the drawings and heritage statement.
Will secondary glazing satisfy Part L on a listed Bristol property? Listed buildings are largely exempt from Part L where full compliance would harm the historic fabric. Secondary glazing typically brings the combined unit down to around Uw 1.7 W/m²K, the accepted heritage benchmark used by Historic England and mirrored in Bristol guidance.
How much noise reduction can I expect on a Whiteladies Road flat? A 100mm cavity between the primary sash and a 6.4mm acoustic laminate secondary pane delivers around 45dB reduction, enough to drop Whiteladies Road or the Portway from a constant hum to a quiet background.
Windows and doors in Bristol - local context
Georgian Clifton townhouses and terraces, Victorian bay-fronts across Bedminster and Southville, plus extensive 1930s semis in Henleaze and Westbury.
Dominant era of housing stock: Georgian Clifton, Victorian across most other neighbourhoods.
Heritage note: 34 conservation areas - Clifton, Kingsdown and Cliftonwood are especially strict on street-facing frames.
- Clifton
- Redland
- Bishopston
- Southville
- Bedminster
- Fishponds
Postcodes we cover in Bristol
- BS1
- BS2
- BS3
- BS4
- BS6
- BS7
- BS8
- BS9
Not seeing your postcode? Request a quote anyway - we likely still cover it.