Sash window lock fitting
Sash fasteners need sound timber and meeting rails that align correctly.

Sash window lock fitting — position sash locks without obstructing movement, with the glass specification, dimensions and access route agreed.
Check the movement of both sashes before choosing a lock. The fitting should support the intended closing arrangement without being used to pull a distorted window into place.
The detail that matters
Can a new fastener repair poor sash alignment?
No. Movement, timber condition and alignment may need correction before the new fitting can work properly.
Before the work
is agreed.
Can a new fastener repair poor sash alignment?
No. Movement, timber condition and alignment may need correction before the new fitting can work properly.
Can ventilation needs be considered?
Yes. Discuss the desired opening arrangement alongside security and the suitability of any associated hardware.
What should I include in this enquiry?
Have the postcode, photographs of the lock and door, and a short account of when the fault began. Identify the person authorised to arrange access; do not send key codes or sensitive entry credentials through the form.
Related services
Sash window lock fitting by area
Select a place to view this service for that location. Please provide the postcode when you enquire.