When considering new windows for your home, one of the first questions is cost. Wooden sash windows are a premium option, particularly in London where craftsmanship and compliance with period property standards play a major role in pricing.
Understanding what affects the cost will help you plan your budget and make an informed decision.
Average Cost of New Wooden Sash Windows
In London, the cost of new wooden sash windows typically ranges between £1,200 and £2,500+ per window, including supply and installation.
The final price depends on factors such as size, glazing type, and complexity of installation. Bespoke designs or heritage requirements can increase costs further.
Cost of Repairs vs Replacement
Repairing existing sash windows is often significantly more affordable than full replacement.
Typical repair costs:
- Minor repairs: £200 – £400
- Moderate restoration: £400 – £800
- Full refurbishment: £800 – £1,200
In many cases, especially with older timber windows, repair is the more cost-effective and sustainable option.
Factors That Affect Price
Several key elements influence the overall cost of wooden sash windows.
Size and design play a major role, with larger or custom-shaped windows costing more.
Glazing options also impact pricing. Double glazing is standard today, while triple glazing will increase costs further.
Timber type matters as well. Hardwood is more durable but more expensive than softwood.
Accessibility can affect labour costs, especially for upper floors or properties requiring scaffolding.
Cost Examples in London
For a single window replacement, you can expect to pay around £1,500 on average.
For a full house project, costs can range from £10,000 to £25,000+ depending on the number of windows and specifications.
How to Save Money Without Compromising Quality
Restoring existing windows instead of replacing them can significantly reduce costs.
Choosing high-quality softwood instead of hardwood can also offer savings while still maintaining good durability.
Phasing the work over time rather than replacing all windows at once is another practical approach.
Conclusion
Wooden sash windows are an investment, but they offer long-term value through durability, repairability, and improved property aesthetics. For many London homes, especially period properties, they remain the best choice despite the higher upfront cost.