Door security in the home

Good door locks are vital for security.

Having a secure front or back door is one of the easiest and most effective ways to protect your home, but it is also a common target for burglars. In the UK, about 70 per cent of burglars enter through a door, and more than 60 per cent use the front door rather than the back or side.

These numbers show that if your external doors are weak, improperly locked, or poorly fitted, you are making it easier for intruders.
This guide covers practical, proven ways to improve your home’s door security, including choosing the right door and frame.

installing high-security locks, reinforcing weak spots, and using smart technology. You’ll learn how standards like BS3621 help you choose products, how multi-point locking systems work, and how simple steps like better lighting and good habits can make a real difference. Whether you’re updating an older home or planning a full renovation, these tips will help you make smarter choices and lower your risk of burglary.

Why door security matters

Most burglars want to get in quickly and quietly, so they target doors much more often than windows. The large majority of burglars enter through a door. Around a third force the lock, and one in ten walk in through an unlocked door.

In over half of home burglaries, someone is actually at home, which can make the experience even more upsetting.
Insurance data shows that when a burglar breaks in, they usually cause over £1,000 in damage and steal thousands of pounds’ worth of belongings.

The emotional impact often lasts much longer than the financial loss. Good door security is not just about protecting your things; it’s also about keeping your sense of safety and control. By investing in secure external doors, UK homeowners can significantly reduce the risk of opportunistic crime, as nearly half of burglaries occur when intruders see an easy target.

Choose a strong door and frame

The strength of your door and its frame is the basis of good security. Even the best lock won’t help if it’s installed in a weak, rotting, or poorly fixed frame. Police advice highlights the need for strong, well-maintained doors and frames, especially when glass panels are present; use laminated glass instead of standard glass.

Solid timber, high-quality composite, and reinforced uPVC doors, when properly installed, all offer strong protection when paired with good locks. Your door frame should be firmly attached to the house’s structure with long fixings that go into the masonry or studwork, not just the plaster.

Reinforcement plates at the lock and hinge points help spread the force of a kick or lever attack. If you’re replacing external doors, choose products designed for security from the start. Many modern doors include steel reinforcement, multi-point locking systems, and impact-resistant glass as standard. This built-in design gives you a much stronger first line of defence, even before you consider alarms or cameras.

Get the locks right

The type and quality of locks on your external doors are just as important as the doors themselves. UK police and security experts typically recommend high-security locks that meet British Standards, such as BS 3621. This mark shows the lock has been tested against picking, drilling, and forced entry.

For many timber doors, the standard is a BS3621 five-lever mortice deadlock, often used with a nightlatch for both convenience and security when you’re at home. On uPVC and composite doors, modern multi-point locks use hooks or bolts at several points along the door edge. When combined with a high-security euro cylinder featuring anti-snap, anti-bump, and anti-drill features, it becomes much harder for a burglar to gain entry.

It’s also important that locks are fitted and adjusted properly. A poorly aligned multi-point system might not lock fully, and an old or damaged mortice lock may not protect as well as you think. Having a qualified locksmith inspect or upgrade your locks is a small investment that can significantly increase your home's security.

Vulnerable points around the door

Even a strong lock can fail if the parts around it are weak. Intruders often target the door jamb, hinges, and strike plates, where force can cause splitting or bending.

Security experts recommend reinforcing the frame with heavy-duty strike plates, fixed with screws that go deep into the structural timbers or brickwork. Adding a door jamb reinforcement kit spreads the force of a kick over a larger area, making it much less likely that someone can kick the door open.

You should also pay attention to hinges. Outward-opening doors may need hinge bolts or security hinges to stop the door from being lifted, even if the hinge pins are removed.

Glass around the door, especially side panels, is another weak spot. Replacing regular glass with laminated or toughened glass makes it much harder for an intruder to break in or reach through to unlock the door.

Simple devices such as letterbox cages or internal restrictors can also prevent someone from fishing for keys or unlocking a night latch through the letterbox, a common burglary method.

Good lighting and smart tech

Physical hardware is just one part of keeping your external doors secure. UK homeowners should also focus on good habits and helpful technology. Police always stress the importance of locking doors whenever you leave, even for a short walk, and of ensuring they are fully locked at night rather than just using the latch.

Good external lighting, especially motion-activated lights near your front and back doors, is a low-cost way to deter intruders. Criminals prefer places where they won’t be seen.

Smart locks and home security systems add another layer of control, letting you check if doors are locked, get alerts, and even create temporary digital keys for visitors instead of hiding spare keys outside.

When you combine alarms and video doorbells with strong doors and locks, you build a layered defence. Even if someone tries your door, you’re more likely to be alerted and get useful evidence.

Working with professionals

For many households, improving door security is part of a bigger renovation or energy-efficiency project, so it’s a good time to review all your external doors.

Security experts recommend walking through your home and looking for old or damaged doors and frames, weak locks, easily accessible glass, or hidden entrances that might attract a burglar. By focusing on the most vulnerable areas first, you can spread costs and still make a real difference to your security.

When choosing new doors, talk about security features, appearance, and energy efficiency. Ask about frame reinforcement, multi-point locking systems, hinge protection, and the type of glass in any panels.

Good installers will know current British Standards and police-backed schemes, and they should explain how their products fit into a comprehensive security plan rather than treating locks as an afterthought. Many manufacturers and installers can share real examples where upgraded doors and locks have stopped or prevented break-ins, so you can feel confident you’re choosing proven solutions.

Door security is cost-effective

Improving your home’s door security is one of the most cost-effective ways to lower your risk of burglary. It starts with a strong, well-fitted door and frame, continues with good locks, and is supported by proper lighting, smart habits, and modern technology.

UK burglary statistics indicate that doors remain the primary entry point for intruders. By focusing on your front and back doors and ensuring they are secure and properly locked, you significantly reduce your risk.

Choosing secure external doors with BS 3621 five-lever mortice deadlocks or advanced multi-point locking systems provides protection that most criminals will avoid. If your doors or locks are old, not well-maintained, or not built for security, now is the time to make a change.

Speak with a specialist door supplier, such as Select Window Systems, about upgrading to modern, high-security doors and locks.
You should also add smart locks and a home security system for added control and peace of mind. By taking these steps, you can protect the people and things that matter most and feel safer every time you close your front door.