How Secondary Glazing Helps Home Security
Posted on 27th March 2025 at 10:30
When it comes to protecting your home, secondary glazing is an effective but often overlooked solution. Many homeowners invest in alarms and locks, which is great, but windows remain a vulnerable entry point. Secondary glazing adds an extra layer of security, making it much harder for intruders to gain access.
How Secondary Glazing Strengthens Window Security
Burglars often target windows because they are easier to break than doors. Secondary glazing makes this significantly more difficult while also offering protection against harsh weather conditions such as hail:
Adding an Extra Barrier - A second pane of glass makes forced entry far more challenging and provides an additional shield against hail impact.
Toughened Glass Options - Many secondary glazing units use toughened or laminated glass, which is much harder to break.
No Exterior Access - Unlike double glazing, secondary glazing is installed on the inside. This makes it impossible for burglars to remove it from outside while also protecting against strong winds and hailstorms.
Reduces Lock Tampering - Windows with secondary glazing provide fewer access points for lock manipulation or forced opening.
Can Burglars Break Secondary Glazing?
So what are the chances of burglars breaking secondary glazing? The short answer is that it’s highly unlikely. Especially without making very loud havoc!
Double the Effort Required - A burglar would need to break through two layers of glass instead of one.
Noise Factor - Breaking multiple glass panes is noisy, increasing the risk of attracting attention.
Time-Consuming - Intruders prefer quick access; struggling with secondary glazing takes too long and deters break-ins.
How Secondary Glazing Compares to Double Glazing Security
While double glazing already improves security compared to single-pane windows, secondary glazing enhances protection even further:
Glass Layers:
Secondary Glazing: Two or three layers (includes the original window and the secondary glazing).
Double Glazing: Two layers of glass.
Access Difficulty:
Secondary Glazing: Harder to access compared to double glazing.
Double Glazing: Harder to access than single glazing.
Internal Fitting:
Secondary Glazing: Yes, it can be installed internally.
Double Glazing: No internal fitting.
Additional Locking Mechanisms:
Secondary Glazing: More options available.
Double Glazing: Standard locking mechanisms.
Glazing for Home Protection
Aside from making your home more secure, secondary glazing offers additional advantages:
Improved Thermal Efficiency - Helps keep your home warmer, reducing energy costs.
Noise Reduction - Blocks external noise, creating a quieter living space.
Preserves Traditional Windows - Ideal for listed buildings where replacing original windows isn’t an option.
View our previous article here, where we explored the benefits of secondary glazing in more detail.
Secure Your Home Today with Secondary Glazing
If you want to improve home security without replacing your existing windows, secondary glazing is a smart investment. It strengthens your home against break-ins, reduces energy loss and enhances sound insulation, all in one upgrade.
At NRG Glass, we offer high-quality secondary glazing solutions designed to keep your home safe. Our range includes fixed, hinged, vertical sliding, horizontal sliding, lift-out and tilt-and-turn secondary glazing.
Get in touch today to find the perfect security-enhancing glazing for your property!
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