A loose fastener may indicate worn screws, damaged timber or sash misalignment rather than a faulty fitting alone. Inspecting the surrounding woodwork first helps prevent a new lock from failing in the same way.
Repairing and replacing damaged locks
Our guidance focuses on traditional timber sliding sash and case windows, rather than assuming every modern window security fitting will work on a heritage sash.
Signs a sash lock needs attention
The fastener spins freely, screws no longer grip, the two halves fail to align, the meeting rails separate or the sash cannot close fully.
Our assessment process
We inspect the existing fitting, meeting rails, sash alignment and surrounding timber. We then advise whether to adjust, refix, repair or replace the lock.
Matching existing heritage fittings
Where practical we look for a compatible style and finish. Retaining serviceable original fittings may be preferable on historic windows.
What affects the cost?
The number of windows, condition of the timber, access, replacement hardware and any necessary sash repairs all affect the quotation.
Where we work
We undertake suitable sash and case window repairs in Stirling and across Central Scotland, with wider Scottish projects considered by arrangement.
Related sash window lock guides
Related sash and case window services
Explore our sash and case window repairs in Stirling, window restoration, sash cord replacement and draught proofing.
Frequently asked questions
Can I fit new locks to old sash windows?
Often, provided the timber is sound and the hardware suits the sash design. Check alignment, clearances and any heritage constraints first.
Will a replacement fastener make my sash window secure?
A meeting-rail fastener mainly holds the sashes together. Additional security may require appropriate locking hardware and repairs to the window itself.
Do you supply and fit sash window locks?
Contact us to discuss inspection, repairs and suitable replacement fittings for timber sash and case windows. Online product sales are not yet available.
Need advice about a sash window lock? Contact The Sash & Case Window Company for an assessment or quotation.
