Windows & Glass Security

Windows and glass doors are frequent secondary entry points. Learn about keyed locks, restrictors, film, and patio or balcony glazing — and how they interact with doors and lighting.

Start here

Recommended reading order for this topic:

1. Window security guide
2. Keyed window locks and restrictors compared
3. Sliding glass door security

Guides in this category

• Window security guide Accessible windows, locks, restrictors, security screens, and common weaknesses. 6 min read · Published
• Security film for windows and glass doors How security film delays smash-and-grab entry and where it helps most. 6 min read · Published
• Security film for windows How window security film works, smash-and-reach limits, types, and installation. 6 min read · Published
• Security film vs laminated glass Compare applied film and factory laminated glazing — retrofit, performance limits, and pairing with locks. 7 min read · Published
• Keyed window locks and restrictors compared When to use keyed locks, restrictors, or both on accessible windows. 6 min read · Published

Review your property in context

Use the free Home Security Planning assessment to see how measures in this category fit your home — score, prioritised steps, and a PDF report.

Start free online assessment