Discover how double glazed doors make your home more secure! Our doors use toughened glass for higher safety. Find your secure, energy efficient solution today.
Toughened Glass for Extra Protection
Safety Glass, also recognised as Toughened Glass, is much stronger than standard glass. It is heated to a high temperature and then cooled quickly, which makes it harder to break. Glass that is heated to high temperatures and then cooled quickly becomes harder to break because of the way it changes inside during this process.
When the outer surface of the glass cools down faster than the inside, it becomes compressed, while the inner part remains in tension. This creates a balance of forces that strengthens the glass. The outer compression makes it more resistant to scratches, impacts and bending. If you try to break it, the compressed outer layer helps hold the glass together. This is why toughened glass is much stronger and safer than normal glass.
If it does break, it shatters into small pieces instead of sharp shards, reducing the risk of injury. Double-glazed doors that use toughened glass add an extra level of protection to your home. They are more difficult for intruders to smash, helping to keep your property safer.

How They Compare to Single Glazed Doors
It may not come as much of a surprise that double-glazed doors offer much stronger security than single-glazed ones due to a number of factors. The problem is that single-glazed doors only have one layer of glass, which makes them a lot easier to break into. They are also less effective at keeping out any noise or cold air.
Double-glazed doors are built to have two separate layers of glass with a gap in between. This adds plenty of strength to your doors and makes them much harder to smash. This added layer also helps reduce heat loss and outside noise, making your home more comfortable and energy efficient.
Double-glazing is ideal for homes in busy areas, such as near roads or schools, where noise can be a problem. It is also a good choice for households that want to improve safety, lower heating bills and reduce condensation.
If toughened glass is used in double-glazing, the level of protection is even greater. This makes double-glazed doors a smart and secure option for modern homes.
Secure Locking Systems Explained
Secure locking systems play an important role in keeping your home safe from unwanted entry. Modern double glazed doors often come with multi-point locking systems, which are far more secure than traditional single locks.
These systems lock the door at several points along the frame—usually at the top, middle and bottom—not just at the handle. This makes it much harder for someone to force the door open or lift it off its hinges.
Many of these locks also include strong hooks, bolts or deadlocks that add extra resistance against tampering. Some even come with anti-snap or anti-pick features to stop more advanced break-in attempts.
Most high-quality locking systems are tested to meet recognised safety standards, so you can trust that they offer reliable protection. Choosing a double-glazed door with a secure locking system is a simple but effective way to improve the safety of your home and give you peace of mind.

Extra Features That Add Safety
Double-glazed doors can be fitted with a range of extra features that help make your home even safer. One of the more commonly picked options is laminated glass. This type of glass has its own special layer inside that helps hold the pieces together if it breaks.
Even if someone tries to smash it, the glass stays in place, making it much harder to get through. Another helpful feature is known as internal beading, and this means the glass is fitted from the inside of the frame, so it cannot be removed from the outside. This stops intruders from trying to take the glass out to get in.
Reinforced door frames and anti-lift hinges are features that can be installed onto double-glazed doors to improve their security levels. These help stop the door from being forced or lifted out of place. Security chains and spy holes are other ways to add further protection, and this allows you to see who is outside before you open your door.
Some of these doors can be fitted with smart locks or alarm systems. These systems send alerts to your phone to show you if someone tries to break into your property. Together, these safety features make double-glazed doors a much stronger and more reliable choice for protecting your household.
Considering Double Glazed Doors for Home Security
If you are looking to make your home more secure, double-glazed doors are a smart choice. They offer much better protection than single-glazed doors thanks to their strong glass, solid frames and advanced locking systems. Features like toughened or laminated glass, internal beading, and multi-point locks help keep intruders out.
Double-glazed doors also offer several other benefits, such as better insulation and noise reduction, which allow your home to be a much more comfortable and safer place.
When choosing a door, it’s wise to look at the type of glass it uses, the locking system and any extra safety features. A well-made double-glazed door with high-quality fittings can greatly improve your home’s security. It’s a simple change that can make a large impact on how safe and secure you feel every day.
Are you looking for a trusted double-glazing company working throughout Maidstone, Tonbridge, Kent and the surrounding areas? At Window Fix Direct Kent, we offer a range of suitable double-glazing services - all provided by our team of professional specialists.