Keep sound joinery in place
Sash window repair in West London
Targeted repairs for rotten timber, snapped cords, cracked glass and sash windows that no longer open, close or operate properly.

When sash window repair makes sense
A proportionate response to the condition of the joinery.
A failed component does not necessarily mean the whole window needs replacing. We inspect the frame, sashes, cords, weights, beads and glazing, then repair the parts that are preventing the window from working properly.
Common signs
How the work is approached
Survey, scope, then do the work properly.
- 1
Inspect the window
We assess the frame, sashes, cords, weights, beads, glazing, putty and areas of timber decay to identify what is actually failing.
- 2
Set out the repairs
The scope is agreed by component, separating repairable timber and hardware from anything that genuinely needs replacement.
- 3
Repair and restore operation
The required repairs are carried out, followed by adjustment and testing so the sash windows open, close and operate properly.
Typical scope
What the quotation can include.
The final scope is always based on the survey and set out in writing.
- Localised timber repairs and splicing
- Replacement sash cords and adjustment of weights
- Repair or replacement of damaged beads and putty
- Minor joint repairs and re-securing
- Glazing repairs or replacement where required
- Preparation and redecoration to repaired areas
- Final adjustment and checks to window operation
Completed by Stile
Recent sash window repair projects.
These are completed STILE projects. The exact repair scope for each property is established after the windows have been surveyed.

Repair & service
Three-part bay sash windows

Repair & service
Repaired kitchen sash window
Questions about repair
The details worth understanding first.
Can a rotten sash window really be repaired?
Often, yes. Localised decay can usually be removed and repaired with a new timber section. If decay runs through the frame or compromises several structural joints, restoration or renewal may be the more sensible option.
Do you have to remove the whole window?
Many repairs are completed with the box frame left in place. The sashes may be removed to give proper access and to service the cords, weights and beadings.
Related services
Restoration
Joinery repair, preparation, servicing and redecoration for windows that need more than a quick fix.
View serviceDraught-proofing
Discreet sealing for original timber windows and doors, combined with a full service of the moving parts.
View serviceComplete renewal
Bespoke hardwood box frames and sashes made for the opening when renewal is the better long-term investment.
View servicePlan the decision
Guides to help you plan the work.
Completed evidence
Case studies, with the work explained.
Free, no-obligation quote