Secondary glazing in Cardiff
From £350
| Service | Typical price in Cardiff |
|---|---|
| UPVC double glazed windows | £396 - £792 |
| Sash windows (UPVC & timber) | £792 - £2,112 |
| French & patio doors | £1,144 - £2,816 |
| Bay & bow windows | £1,408 - £3,344 |
| Secondary glazing | £308 - £836 |
Secondary glazing for Cardiff’s Pontcanna, Roath Park and listed properties
Secondary glazing is the go-to warmth-and-noise upgrade in Cardiff’s protected streets — Pontcanna’s Article 4 area, Roath Park’s conservation streets and any listed property around Cathays Park or the Bute Estate. Because it is fully reversible and leaves the original Edwardian sash intact, Cardiff Council conservation officers treat it as a preferred solution. Legacy Windows is a quote comparison service that matches you with vetted installers experienced in low-visual-impact aluminium secondary systems.
Why locals in Cardiff choose Legacy Windows
- Specialists in aluminium secondary systems for conservation and listed properties
- Slim sightlines from 20mm — barely visible from the street
- Horizontal-slider, vertical-lift and hinged options
- Acoustic laminate glass for A470, Newport Road and Cathedral Road noise
- Listed Building Consent handled by the installer where required
Areas we cover around Cardiff
Secondary glazing demand concentrates in CF11 (Pontcanna, Cathedral Road), CF23 (Penylan, Roath Park), CF24 (Cathays Park, Roath conservation streets) and CF10 (city centre listed flats). Coverage extends to Penarth’s listed seafront, Chepstow’s Georgian core and Cowbridge High Street.
Frequently asked questions
Will Cardiff Council approve secondary glazing on a Pontcanna listed property? Almost always yes. Because it is fully reversible and does not alter the original Edwardian sash, the council conservation team treats secondary glazing as the preferred energy-efficiency route on listed and Article 4 properties. Consent is still needed, but decisions are usually straightforward when slim aluminium frames match the sash sub-divisions.
Does it cut A470 or Newport Road noise? Yes. A 100-150mm air gap combined with 6.4mm acoustic laminate typically drops external noise by 45-50dB — enough to make Cathedral Road, Newport Road and A470-adjacent Pontcanna frontages genuinely quiet at night.
Typical Cardiff prices? Standard horizontal-slider units £310 to £630 supplied and fitted per window; tall Edwardian vertical-lift units £700 to £835. Acoustic laminate adds £100-£160 per window. A Pontcanna terrace with five sashes usually lands £2,000 to £3,600 total.
Windows and doors in Cardiff - local context
Cardiff's signature bay-fronted Victorian terraces dominate Cathays, Roath and Grangetown, with detached Edwardian villas in Cyncoed and Lisvane, and modern apartments in the Bay redevelopment.
Dominant era of housing stock: Victorian and Edwardian bay-fronted terraces.
Heritage note: Around 27 conservation areas including Pontcanna, Roath Park and Cathays Park.
- Cathays
- Roath
- Pontcanna
- Penylan
- Cyncoed
Postcodes we cover in Cardiff
- CF10
- CF11
- CF14
- CF23
- CF24
Not seeing your postcode? Request a quote anyway - we likely still cover it.