When investing in new windows for your home, security should be one of your top priorities. Modern windows do far more than enhance your property’s appearance or improve energy efficiency—they also act as the first line of defense against intruders. Criminals often target vulnerable, outdated windows, and without the right features, even a beautiful set of windows can be a weak spot in your home’s security.
In this guide, we explore the most important security features to look for in modern windows, helping you choose the right products that offer peace of mind without compromising on style.
1. Multi-Point Locking Systems: Maximum Resistance to Forced Entry
One of the most critical security enhancements in today’s windows is the multi-point locking system. Unlike traditional locks that secure the window at a single point, multi-point systems engage multiple bolts or hooks at different points along the frame.
Why It Matters:
- Prevents forced opening through prying or levering
- Distributes locking pressure evenly for greater structural integrity
- Often integrates with the handle for one-motion locking
When selecting windows, ensure they come with high-quality multi-point locks, especially on larger windows and patio doors where forceful entry is more common.
2. Laminated or Toughened Safety Glass: Stronger Than Standard
The type of glass used is just as important as the frame or locks. Intruders often attempt to smash glass to gain entry—but modern glazing technology offers a serious deterrent.
Options to Consider:
- Laminated Glass: Made by sandwiching a durable plastic layer between two panes of glass. Even if broken, the pane stays intact, making it difficult to climb through.
- Toughened Glass: Heated and rapidly cooled during manufacture, making it five times stronger than standard glass. It shatters into small blunt pieces, reducing injury risk and hindering quick access.
Bonus Tip: Look for BS EN 356 certification for laminated glass and BS EN 12150 for toughened safety glass.
3. Internal Beading: Tamper-Resistant Design
Modern secure windows often feature internal glazing beads, which hold the glass in place from the inside of the window, as opposed to older external beading systems.
Why This Matters:
- External beads can be removed from outside, making glass removal easy for burglars
- Internal beading prevents unauthorised removal without damaging the window
Always check with your installer or supplier to confirm that beading is located on the interior side of the frame.
4. Lockable Handles with Key Control
Window handles might seem like a small detail, but they play a crucial role in your overall window security. High-security modern windows include lockable handles—which require a key to open, even if the main lock is disengaged.
Advantages of Lockable Handles:
- Prevent children from opening windows unsupervised
- Deter burglars attempting to manipulate window mechanisms
- Add an extra layer of defense when windows are partially open for ventilation
For best results, choose handles with built-in key locks and ensure you use the locks consistently, especially on ground-floor or easily accessible windows.
5. Secured by Design (SBD) Certification: Police-Backed Standards
For ultimate peace of mind, look for windows that carry the Secured by Design (SBD) accreditation. This is an official UK Police initiative that certifies products which meet rigorous security standards.
SBD-Certified Windows Feature:
- Tested and approved locking mechanisms
- Robust frame construction
- Tamper-resistant installation designs
Windows that comply with PAS 24:2016 Enhanced Security Standard are eligible for SBD accreditation. Choosing SBD-certified products ensures that your windows have undergone thorough testing against burglary attempts.
6. Reinforced Frames: Solid Foundations for Secure Glazing
A window is only as secure as the frame that supports it. Modern windows often include steel or aluminium reinforcements within the uPVC or timber frame to boost durability and impact resistance.
Frame Features to Look For:
- Multi-chamber uPVC profiles for strength and insulation
- Metal reinforcements in vulnerable areas such as corners and hinges
- High-quality welded joints for improved stability
Opting for windows with reinforced frames ensures they can resist both manual force and extreme weather—keeping your home safer in every season.
7. Window Restrictors and Ventilation Locks
While security is crucial, so is ventilation. Modern secure windows offer restricted opening functions that allow for airflow without compromising security.
Popular Ventilation Features:
- Tilt-and-turn mechanisms for secure airing from the top
- Window restrictors that limit how far a window can open
- Night vent locking positions to allow partial opening while remaining locked
These features are especially valuable for upper-floor rooms, children’s bedrooms, and for homeowners who want to leave windows open overnight without risk.
8. Concealed or Heavy-Duty Hinges
Window hinges are often overlooked when assessing security, yet they are a common target for intruders. Quality modern windows come with concealed hinges or heavy-duty, tamper-proof hinge guards that block access from the outside.
What to Look For:
- Fully concealed hinges that hide all screws and moving parts
- Hinge bolts or guards that prevent forced removal
- Corrosion-resistant materials for long-term performance
When combined with other security measures, robust hinges act as an essential deterrent against levering attacks.
Invest in Security Without Compromise
Modern windows offer a wealth of features that enhance both your home’s aesthetics and its security. From multi-point locking systems and reinforced frames to laminated safety glass and certified designs, you don’t have to choose between style and safety. Always consult with reputable window providers who offer products that meet or exceed current security standards, and consider professional installation to ensure every component functions as intended.