Window security: locks, laminated glass and PAS 24

Close-up of a window multi-point lock, key-locking handle and laminated glass edge

A secure window has a multi-point lock, a locking handle, internal glazing beads so the glass cannot be removed from outside, and laminated glass on easy-access panes. PAS 24 is the British test standard for the security of doors and windows; specifying tested products is the simplest way to get all of these.

Where break-ins happen

Intruders look for windows they can open from outside: weak locks, external beads, or glass that breaks cleanly. Ground-floor windows, windows reachable from flat roofs, and doors with side panels are the usual targets.

What to specify

Multi-point espagnolette locks with mushroom cams
Key-locking handles
Internally beaded glazing
Laminated glass on easy-access panes
PAS 24 tested windows and doorsets
Anti-snap cylinders on doors

Building Regulations

Security standards apply to new homes: Approved Document Q in England and Wales, and standard 4.13 in Scotland. Replacement windows have no legal security standard, but the same tested products are available for replacements.

Questions

What is PAS 24?

A British standard test for the security of doors and windows against attack.

Is triple glazing harder to break?

Three panes take more effort, but laminated glass and good locks matter more.

Sources

Planning Portal: Approved Document Q

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