Replacement Timber Casement Windows
Our replacement timber casement windows are handcrafted to suit both period and contemporary homes across London and Southern England. Manufactured from Accoya timber and available with high-performance double glazing, our bespoke casement windows are designed to combine traditional craftsmanship with modern energy efficiency, security and durability.
Whether you are replacing ageing timber windows, renovating a period property or upgrading your home’s thermal performance, our made-to-measure casement windows offer an attractive, long-lasting solution.
What is a Casement Window?
If you are unsure whether a sash window or casement window is right for your home, our team can advise on the best solution based on your property’s style, age and planning requirements.
Flush vs Stormproof Casement Windows
When selecting replacement timber casement windows, one of the most important decisions is whether to choose a flush casement or stormproof casement design.
Flush Casement Windows
A flush casement window sits completely flush within the outer frame when closed. This creates a clean, understated appearance that is particularly popular in period properties, cottages and heritage homes. Benefits include a traditional appearance, authentic period detailing, and smooth, elegant lines. Flush casements are also ideal for conservation areas and listed buildings.
Stormproof Casement Windows
A stormproof casement window features an opening that overlaps the outer frame when closed. This design offers enhanced weather protection and has become increasingly popular in modern and twentieth-century homes. Benefits include excellent weather resistance, enhanced protection against draughts and strong thermal performance. Stormproof casements are suitable for both traditional and contemporary properties.
Choosing between flush and stormproof casement windows often comes down to the age and style of the property, as well as personal preference.
Styles for Period Homes
Our replacement timber casement windows can be tailored to complement a wide variety of architectural styles.
Georgian Casement Windows
Designed with elegant proportions and traditional glazing patterns, Georgian-style casement windows help maintain the character of eighteenth and early nineteenth-century properties.
Victorian Casement Windows
Victorian properties often feature more decorative detailing and larger panes of glass. Our bespoke designs can replicate original profiles and period features.
Edwardian Casement Windows
Edwardian homes combine traditional craftsmanship with larger window openings and increased natural light. Our replacement windows can be customised to suit these distinctive characteristics.
For homes located within conservation areas, we can advise on appropriate designs that respect the character of the surrounding architecture.
Glazing and Materials
Our casement windows are available with high-performance double glazing to help reduce heat loss, improve comfort and enhance acoustic performance. A range of glazing options is available, including obscured glass, acoustic glass and specialist glazing solutions where required.
Quality, Security and Standards
Energy Efficiency
Our double-glazed timber windows are available with energy-efficient glazing options and can achieve low U-values, helping to reduce heat loss and improve comfort throughout the year. Benefits include lower heating costs, improved thermal insulation, reduced draughts, greater comfort, and reduced environmental impact.
For homeowners replacing ageing windows, improved energy efficiency is often one of the most significant benefits.
Our process
1
SurveY
2
Manufacture
3
Installation
Areas we cover
The Sash Window Workshop has been manufacturing and installing bespoke timber windows and doors for over 30 years. We cover London and Southern England, travelling as far north as Northampton, as far east as Colchester, as far west as Bristol and as far south as Bournemouth. If you are unsure whether we cover your area, please contact our team.
Frequently Asked Questions
What's the difference between a flush and a stormproof casement window?
How is a casement window different from a sash window?
Are timber casement windows secure?
Can casement windows be fitted in a conservation area?
How energy efficient are timber casement windows?
If you are considering replacement timber casement windows for your home, our specialists can help. Contact us today to arrange a free, no-obligation survey and discover how our bespoke timber casement windows can enhance the appearance, comfort and energy efficiency of your property.
Contact us
4 Kiln Lane, Bracknell, Berkshire, RG12 1NA
01344 868 668
info@sashwindow.com