Expert Timber Sash Window Repairs & Restoration
Replacement Sashes for Timber Sash Windows in Clevedon
Replacement sashes provide a practical way to upgrade existing timber sash windows without removing the original box frame. This approach focuses only on replacing the moving sashes within the window, while the surrounding frame remains in place. For many period properties in Clevedon and surrounding areas, replacement sashes offer a clear alternative to full window replacement.
Traditional sash windows are made up of two main parts: the box frame, which is fixed into the building, and the sashes, which move up and down within that frame. In many cases, the box frame remains structurally sound even when the sashes themselves have deteriorated. Replacement sashes allow those worn components to be renewed without disturbing the original window structure.
What Are Replacement Sashes?
Replacement sashes are newly manufactured timber sashes designed to fit precisely into an existing sash window frame. They are made to match the original proportions, glazing bar layouts, and detailing of the existing window, ensuring the finished result remains in keeping with the property.
Only the sashes are replaced during this process. The original box frame, surrounding timber, and internal linings remain in place. This makes replacement sashes less disruptive than full window replacement and particularly suitable for period homes where retaining original features is important.
When Replacement Sashes are Suitable
Replacement sashes are typically considered when the existing sashes are beyond practical repair, but the box frame remains in good condition. Common reasons include extensive timber decay within the sashes, repeated historic repairs that have failed, or movement that can no longer be corrected through refurbishment.
This option is also frequently chosen by homeowners who wish to improve performance without the disruption associated with removing the entire window. An assessment will confirm whether the existing frame is suitable for receiving new replacement sashes.
Upgrading Sashes to Double Glazing
Replacement sashes can be upgraded to include slimline double glazing where appropriate. Slimline units are designed specifically for use in traditional sash windows, allowing improved insulation while retaining traditional sightlines and proportions.
Because only the sashes are being replaced, this type of upgrade avoids altering the surrounding frame or external appearance of the window. In many properties, this allows improved thermal performance while maintaining the character of the building.
Slimline double glazing is often chosen in period properties where full window replacement is unnecessary or undesirable, but improved comfort is required.
Accoya Timber Sashes
All replacement sashes are manufactured using Accoya timber. Accoya is a modified wood known for its exceptional durability, stability, and resistance to moisture. These properties make it particularly well suited to use in moving sash components, where dimensional stability is essential for smooth operation.
Using Accoya timber helps ensure new sashes maintain their shape over time, reducing the likelihood of sticking, swelling, or excessive movement. This contributes to long term reliability and reduces the need for frequent maintenance.
Replacement Sashes Compared to Full Window Replacement
It is important to distinguish replacement sashes from full sash window replacement. Replacement sashes involve renewing only the moving parts of the window, while the original box frame remains intact. Full window replacement, by contrast, involves removing the entire window structure and installing a new frame.
Where the existing frame is in good condition, replacement sashes offer a less invasive solution that preserves original fabric and minimises disruption. Full window replacement is only considered when both the sashes and the frame have deteriorated beyond repair.
A Considered Approach For Period Properties
Replacement sashes are particularly well suited to period homes in Clevedon and nearby areas, where maintaining original detailing and proportions is important. By retaining the original frame and upgrading only the sashes, it is possible to improve usability and comfort while preserving the character of the property.
Replacement sashes provide a practical way to extend the life of existing timber sash windows, offering an upgrade path that sits between refurbishment and full window replacement.