Are Your Windows Secure?
1st December 2025
When it comes to home security, most people focus on locks, alarms, and doors, but windows are one of the most common entry points for burglars. If your windows are outdated, poorly secured, or damaged, your home could be more vulnerable than you realise.
Why Window Security Matters
According to UK police data, around 30% of break-ins occur through a window. Older or poorly maintained windows often present an easy target for intruders, especially if:
- They lack proper locking systems
- The frames are worn or damaged
- The glass is single glazed or unreinforced
- They’re left open or partially ajar during warmer months
Securing your windows isn’t just about deterring burglars, it’s also about protecting your family, belongings, and peace of mind.
How to Check If Your Windows Are Secure
Not sure how secure your current windows are? Here are some key areas to inspect:
1. Locks and Handles
- Do all your windows lock properly?
- Are the handles loose, damaged or spinning freely?
- Do you have key-operated locks on all accessible windows?
What to look for:
Modern windows should have multi-point locking systems and a handle that secures firmly when locked. Ground floor and accessible upper-floor windows should be key-lockable to meet home insurance standards.
2. Frame Condition
- Are your window frames cracked, warped, or soft in any places?
- Are there visible gaps where the frame meets the wall?
Why it matters:
A strong lock means nothing if the frame itself can be pried or broken. Rotten timber, aged uPVC, or poor installation can all weaken your home’s defences.
3. Glazing Type
- Are your windows single or double glazed?
- Do you have laminated or toughened glass in vulnerable areas?
Security tip:
Modern double glazing is far more difficult to break than old single-glazed panes. Laminated glass, often used in doors or low-level windows, adds another level of protection, as it stays intact even when shattered.
4. Window Position and Accessibility
- Are your ground-floor windows shielded by fencing, lighting, or plants?
- Do any windows open directly onto flat roofs or easy-to-access areas?
Consider:
Exposed windows are more attractive to intruders. Use motion-sensor lighting, window locks, or security film to increase deterrence.
5. Hinges and Opening Mechanisms
- Are your window hinges secure and properly aligned?
- Can the window be opened from outside with pressure or force?
Good to know:
Some burglars use tools to pop open poorly fitted or loose windows. Modern security hinges and anti-crowbar features reduce the risk of this happening.
Modern Window Security Features to Look For
If your windows are over 10–15 years old, they may be missing important modern security features. Today’s secure windows often include:
- Multi-point locking systems
- Key-lockable handles
- Internal beading (to prevent glass removal from outside)
- Laminated or toughened safety glass
- PAS 24 accreditation (UK security standard for windows and doors)
- Secure hinge guards
- Reinforced uPVC or aluminium frames
These upgrades not only help protect your home but also offer compliance with home insurance requirements, and may even reduce your premium.
Can You Improve Security Without Replacing the Whole Window?
Yes, there are ways to upgrade window security without full replacement:
- Add aftermarket sash jammers or window restrictors
- Replace damaged or outdated handles and locks
- Apply security window film to strengthen glass
- Install window sensors or smart alarms linked to your home security system
- Trim hedges or trees that might conceal intruders
However, for very old, damaged or single-glazed windows, full replacement is often the most effective solution, combining security with energy efficiency and kerb appeal.
Final Thoughts: Are Your Windows Really Secure?
Your windows are one of the most important barriers between your home and the outside world, and if they’re not up to scratch, they could be putting your property at risk.
If you’ve noticed:
- Worn or faulty locks
- Soft or damaged frames
- Single glazing
- Poorly fitting or easily accessible windows
It might be time to upgrade. Get a free quote with the Double Glazing Network