How Much Does Sash Window Cost?
Sash window prices depend on size, frame material and whether you are replacing existing sash windows or installing them for the first time. Modern replacement sash windows combine traditional aesthetics with contemporary double glazing performance.
Typical Sash Window Prices 2026
| Item | Details | Typical Cost |
|---|---|---|
| Small sash window (uPVC) | Replacement | £400 – £700 |
| Standard sash window (uPVC) | Replacement | £600 – £1,200 |
| Large sash window (uPVC) | Replacement | £900 – £1,800 |
| Timber sash window | Replacement | £1,000 – £3,000 |
| Aluminium sash window | Replacement | £1,200 – £2,500 |
| Full house (4-bed Victorian) | All sash windows | £6,000 – £15,000 |
Prices are indicative guides only. Actual costs depend on your property, location and chosen installer. Always compare multiple quotes to ensure you are getting a fair price for quality work.
Compare Prices by Type
Explore our detailed price guides for each type to find the best option for your home.
uPVC Sash Window Prices
The most popular sash window choice. uPVC sash windows offer great value with minimal maintenance requirements.
Timber Sash Window Prices
The traditional choice for period homes. Timber sash windows offer unmatched authenticity but require regular maintenance.
Conservation Area Sash Window Prices
Specially designed sash windows approved for use in conservation areas and with listed buildings.
Frequently Asked Questions
How much do sash windows cost?
A standard uPVC sash window costs between £600 and £1,200 supplied and fitted. Timber sash windows cost significantly more at £1,000-£3,000 per window.
Can sash windows be double glazed?
Yes — modern replacement sash windows include double glazing as standard, significantly improving thermal performance while maintaining the traditional appearance.
Are sash windows suitable for conservation areas?
Many modern sash window designs are approved for conservation areas. Your installer will advise on suitable products for your specific location.
How can I save money on sash windows?
Comparing at least 3 quotes from FENSA accredited local installers is the best way to save money on sash windows.
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