New sashes into existing window frames header

New Sashes into Existing Window Frames

New Double Glazed Timber Windows Installed into Existing Frames.

If your window frames are in good condition, we can replace just the moving parts of the window, saving you money, minimising disruption and helping to retain the heritage of your home.

High Quality Performance

We purposely select materials that offer the highest quality performance and durability, meaning that our windows are easy to use, secure and require minimal maintenance.
Bespoke double glazed windows London

HIGH ATTENTION TO DETAIL

New sashes can be installed into the existing box frames for both timber sash windows and casement windows.
When replacing the moving parts of the window, a high level of attention to detail is required and the replacement sashes are measured and manufactured to fit precisely. At The Sash Window Workshop, we will always take great care ensuring your existing windows are matched exactly and retain the original style of your home.

Energy Efficiency at a Fraction of the Cost

During the installation process, the old sashes are removed, before the new sashes are carefully hung in their place. For most clients, the sashes we fit to existing window frames are specified to be double glazed, unless single glazed is expressly required.
The original frame will be left in place, with just the moving parts of the window being replaced, allowing for double glazing without full replacement. On installation windows are draught sealed to help keep your home warm and further improve energy efficiency. Finally, new ironmongery is fitted.
New Double Glazed Casement Sashes

Unsure what type of windows you have? Sash windows slide up and/or down to open, whereas casement windows open on hinges, like a door.
To view examples of our previous work, view our gallery pages.

Below shows a bay sash window where we installed new
sashes into the existing window frames

BEFORE

before work

DURING

during work

AFTER

new sashes installed

Below is a quick walk through of The Sash Window Workshop installing new timber sliding sashes into existing window frames

FENSA

As the installation of new sashes into the existing window frame does not go back to the brickwork, FENSA deem this work as repair work, rather than replacement. This means that a FENSA certificate is not required for this work.

We also manufacture and install complete new sash windows and casement windows, alongside providing a range of repair services, including draught proofing and a minor repair service.

OUR REPLACEMENT SASH WINDOW GUARANTEES

YEAR

Accoya Anti-Rot
Guarantee

YEAR

Joinery
Guarantee

YEAR

Double Glazing
Guarantee

YEAR

Paint
Guarantee

YEAR

Draught Proof
Guarantee

*Maximum Guarantees Shown. Please see our Guarantee and Maintenance documents for further information.