Which Front Door is the Most Secure?

Wooden door with key in secure mortice lock. Locksmith van outside

Most burglars break in through the front or back door of a property. That means having a secure door is vital. Doors come in a variety of materials and as a locksmith, I often get asked which type I would recommend. Unfortunately, there is no clear winner to this question as it is not just the door that is important. Three factors need taking into account: your budget, the material the door is made from and the type of lock fitted to the door.

Common types of front (or back) door


Wood is a strong, solid material for front doors but needs regular maintenance to keep it in good condition. Wooden doors are more expensive to buy but have the advantage that additional locks can be fitted to them to boost security and convenience e.g. a nightlatch or rim lock


UPVC doors are very popular due to their affordability and low maintenance. They are also thermally efficient and a stylish option for many people. On the downside, additional locks cannot be fitted to this type of door.


Composite doors are made from a number of different materials compressed together. Cost-wise, they fall somewhere between wood and uPVC. A good quality composite door will be very strong, durable and low maintenance.


Most secure lock for a front door

Wooden Doors

The 5 lever mortice deadlock is the most secure type of lock for timber doors. It should also be BS3621 compliant. You can check this by viewing the lock when the door is opened. BS3621 should be visible somewhere on the lock face.

UPVC Doors

UPVC doors use a multipoint locking mechanism connected to a euro cylinder lock. Although the multipoint locking mechanism is extremely strong, many old uPVC doors are fitted with cylinder locks that can be easily snapped. This technique is called ‘lock snapping’ and even today this flaw is responsible for many break-ins. Fortunately, anti-snap euro cylinder locks have been developed which fix this problem. As well as being fitted on new uPVC doors, they can also be retro fitted on older uPVC doors to make them extremely secure.

Composite Doors

Composite doors are similar to uPVC doors and are usually secured with a multipoint locking system and anti-snap euro cylinder.


Additional security for your front door

Other features you can add to your front or back door to increase security include

  • Peephole
  • Door chain
  • Door alarm – a beep sounds when opened or closed
  • Letterbox cage – to prevent letterbox burglary e.g. fishing for car keys, house keys through the letterbox


If your front door needs a new or more secure lock, please get in touch. Hero Locksmith is a highly rated mobile locksmith in Edinburgh and carries a wide range of branded, accredited locks to suit all budgets.