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Lockable sash jammers

Lockable sash jammers are ideal for securing externally opening doors and windows to help keep burglars our and make sure they're child-friendly. One of our qualified, expert technicians can quickly supply and fit these handy tools.

  • Available in a range of colours to suit your doors and windows - just let us know which colour you need

  • Handy, affordable safety feature to improve your home security

  • No call-out charges and no-obligation callbacks

  • Order as many as you need for around the home

  • More on lockable sash jammers



Why lockable sash jammers?



Lockable sash jammers are easy to fit and can be used on uPVC windows and doors around your home.


They can be deadlocked with the key supplied, providing additional security to your window or door.


Lockable sash jammers can be used for various things:

  • Small window or letterbox (1 needed)

  • Large window or single door (2 needed, 1 for the top and 1 for the bottom)

  • French or patio doors (4 needed, 2 at the top and bottom of each door)

Why choose Mersey Locksmiths?

  • We're qualified - both CORGI Fenestration Skilled Locksmiths and City & Guild accredited

  • We don't have call-out charges

  • We're DBS (formerly CRB) checked and fully insured, meaning you can trust us in and around your home

  • We offer a range of payments for your convenience - see what payments we accept

  • We offer free, no-obligations bookings, so you're under no pressure to go ahead