Depending on where they are located it is recommended you use a different number of sash jammers to make sure that they add the right amount of reinforcement.

  • Small windows – 1 sash jammer
  • Larger windows or single door – 2 sash jammers – one at the top and one at the bottom
  • Patio doors – 4 sash jammers – two at the top and two at the bottom

If you are unsure where you should be installing sash jammers in your property or how many you should use to create maximum security, then we will be happy to help.