Heritage window restoration
Conservation-grade work for listed buildings. Our craftsmen have restored period sash windows across Kensington, Chelsea, Belgravia, Hampstead, Richmond and the wider Home Counties for 15 years. Every project starts with a free on-site survey and fixed per-window pricing.
Related pages you may find useful: draught elimination, secondary glazing, window restoration, pricing guide, how it works.
All sash window services
- Sash window draught elimination — Seals every gap around sashes, meeting rails and beads to stop cold air.
- Secondary glazing installation — Slim internal units for maximum thermal and acoustic performance.
- Secondary glazing vs draught proofing — Compare costs, benefits and use cases for both approaches.
- Sash window restoration — Complete refurbishment of period timber sash windows.
- Sash windows refurbishment — Cords, beads, glazing and finishes renewed by hand.
- Sash window repair — Stuck, rattling or broken sashes fixed without replacement.
- Sash cord & rope replacement — Genuine hemp cords and brass pulleys, fitted correctly.
- Heritage window restoration — Conservation-grade work for listed buildings.
- Victorian sash window draught proofing — Specialist care for 19th-century joinery.
- Thermal efficiency upgrades — Cut heating bills by up to 30% with sympathetic upgrades.
- Noise reduction for sash windows — Up to 75% quieter interiors on busy London streets.
- Window security solutions — Discreet locks, restrictors and reinforced beading.
- Ongoing window maintenance — Annual servicing to keep sashes running smoothly.
- Emergency window services — Same-day response for broken glass and failed sashes.
- Cost of draught proofing — Transparent per-window pricing from £150.
- Learn how draught proofing works — Detailed guide to the process, materials and outcomes.
Areas we cover
- Kensington (SW7, SW5)
- Chelsea (SW3, SW10)
- Belgravia (SW1X, SW1W)
- Mayfair (W1J, W1K)
- Marylebone (W1U, W1H)
- Fitzrovia (W1T, W1W)
- Notting Hill (W11, W2)
- Little Venice (W9)
- St John's Wood (NW8)
- Primrose Hill (NW1)
- Hampstead (NW3)
- Highgate (N6)
- Islington (N1)
- Fulham (SW6)
- Chiswick (W4)
- Richmond (TW9, TW10)
- Barnes (SW13)
- Putney (SW15)
- Wimbledon (SW19)
- Clapham (SW4)
- Battersea (SW11)
- Dulwich (SE21)
- Greenwich (SE10)
- Blackheath (SE3)
- Windsor
- Ascot
- Virginia Water
- Weybridge
- Cobham
- Esher
- Guildford
- Marlow
- Beaconsfield
- Gerrards Cross
- Chorleywood
- Rickmansworth
- Radlett
- Chigwell
- Sevenoaks
- Tunbridge Wells
Why choose us
- 15 years restoring London's period sash windows
- Fully insured with a 10-year workmanship guarantee
- Conservation-friendly methods approved for listed buildings
- Free on-site survey and fixed per-window pricing (£150–£600)
- Rated 4.9/5 across 150+ homeowner reviews
Get in touch: 0207 060 1573 · info@sgs.org.uk · WhatsApp