Sash Windows in Westminster
From £600
| Service | Typical price in Westminster |
|---|---|
| Casement Windows | £438 - £1,125 |
| Sash Windows | £750 - £1,375 |
| Bay Windows | £1,500 - £4,000 |
| Door Installation | £1,063 - £2,250 |
| Window Repair | £111 - £313 |
Looking for sash windows in Westminster? Compare free, no-obligation quotes from vetted local installers in your area. Typical prices in Westminster sit around from £750 depending on unit count and specification.
Sash windows suit period properties - Georgian, Victorian and Edwardian houses in particular - where a casement would look wrong. Modern double-glazed sashes replicate the classic vertical-sliding design while cutting heat loss by 60-70% versus single-glazed originals.
You have two real choices: a full replacement in uPVC or timber, or a sympathetic refurbishment where the original box and sashes are kept but slim-profile double glazing is fitted into the existing frames. Refurbishment is often the only route in listed buildings or strict conservation areas, and typically costs 30-50% more than a like-for-like uPVC replacement.
Popular specs for sash windows
Vertical sliding, spiral balance or traditional cords-and-weights, slim-profile 14mm or standard 28mm sealed unit, run-through horns for authenticity, factory-finished timber or foiled uPVC in Chartwell Green, Anthracite Grey or white woodgrain.
Windows and doors in Westminster - local context
Georgian squares (Belgravia, Mayfair), Regency terraces around Pimlico and Marylebone, Edwardian mansion blocks in Marylebone and Bayswater, plus modern glass-fronted apartments around Victoria and Nine Elms.
Dominant era of housing stock: Georgian and Regency terraces, Edwardian mansion blocks.
Heritage note: Westminster has 55 conservation areas and thousands of listed buildings - almost any street-facing frame change needs council consent, and works in Belgravia or Mayfair require the tightest specifications.
- Mayfair
- Marylebone
- Belgravia
- Pimlico
- Victoria
- Paddington
- Soho
Postcodes we cover in Westminster
- SW1
- W1
- WC1
- WC2
- W2
- NW1
- NW8
Not seeing your postcode? Request a quote anyway - we likely still cover it.