Security doors

Secure and robust entry and exit points are a key element of protecting your premises. Learn more about security doors here

Our experts

We are a team of writers, experimenters and researchers providing you with the best advice with zero bias or partiality. This article was authored by:

How many doors does your business premises have? Whether it’s just one, or there are multiple points of entry and exit, the doors are what separates your business from the outside world. Therefore, it’s vital to ensure they are as secure and protective as they can be.

What makes security doors different from regular doors? Which features make them robust enough to secure your premises and reduce an intruder’s ability to break in? How could security doors benefit your business?

We’ll provide the answers to these key questions to help you understand how to incorporate security doors into your business security strategy.

In this article, we’ll cover:

  1. Security door locks
  2. Steel security doors
  3. Front door security
  4. Door security bolts

Skip to the section that you want to find out more about, or read the article from start to finish for an overview of the key information.

Alternatively, if you’re ready to compare quotes for business security straight away, simply fill in the form at the top of the page.

1. Security door locks

How the door can be locked is a key aspect to consider when selecting the best security doors for your business. So what should you look for?

Locks can be used not only for the front door, but also other entry and exit points. Door locks are often reinforced to protect against tampering. The lock itself may also be referred to as a cylinder.

Consider what different types of locks are needed for different door materials – doors can be made of aluminium, steel and uPVC, and anti-snap locks can be used on uPVC doors.

Similarly, it’s wise to match the type of lock to the door use and level of security needed. For example, front doors will have different requirements to a side access door.

Locks are often made to comply with different standards of approval. Two examples include diamond and kitemark approval (which use symbols and stars to indicate the standard that has been reached). The thickness of the lock is often measured in millimetres (mm).

You can hire a locksmith or it may be possible to use the company that installs the doors.

Some examples of different types of locks include:

  • Deadbolt – with no springs, the lock must be operated by a key on one or both sides
  • Handlesets – this type of lock features a button on the inside and a key to open it externally
  • Keyless – a code is used to lock and unlock it, some types may be compatible with an alarm system. The code for this type of door lock is usually in the range of four-seven digits long
  • Mortise lock – this is a more traditional lock, which features a door handle and key
  • Smart locks – some cylinders may be operated via Bluetooth, with an app or smartphone

Some additional security features that are available include door jammers and latches, to further reinforce the door and locks.

2. Steel security doors

Steel doors (also referred to as personnel doors) are used to protect against potential break-ins and provide an additional layer of security. Some may also be able to withstand attacks on the door with power tools.

Steel security doors can have varying levels of locking systems e.g. nine or 12 points. The points refer to the number of places that the door locks around the door frame.

While steel is the main component of the doors, what other features might the doors have?

Some examples include:

  • Panels – the door could be divided into panels e.g. six panels – three at both the bottom and the top
  • Fire doors – these are specifically designed to be used as part of a fire strategy, like fire alarms. There’s a bar across the door that’s pushed to release it
  • Louvered – this allows for for airflow and ventilation. Some types of businesses that may need this type of security door are hairdressers, beauty salons, and mechanics, as they often work with chemicals which may need sufficient ventilation. In an office environment, server rooms are an example of a room that may need the increased airflow from this type of door

Additional features could be:

  • Fabrication – for custom steel work
  • Locks – for different levels of security e.g. multi-point locking
  • Design – for changing the colour or style of the door
  • Treatments – such as glazing or for protection against fire, flood or sound, as well as insulation

When choosing steel security doors, some factors to consider include:

  • What standards of approval does it meet? E.g. a CE mark shows that it’s met European standards
  • How thick is the door? Steel doors are often available as standard or heavy duty, depending on how thick the material is
  • What type of door is needed? Single or double doors are available, depending on the space in which it needs to be fitted
  • Where will it be used? Steel doors can be used internally or externally
  • What type of steel is used? As steel can rust, it’s wise to look for galvanised steel or another treatment to prevent rust
  • How will it be made? It’s possible to buy ready-made or opt for a custom door, depending on your business’ requirements
  • How many hinges does it have? This can assist with security and durability

3. Front door security

Front door security is very important – think of all the people that use your business premises, going in and out of the front door on a daily basis. In what ways could it be compromised in an attack?

Front doors could be made of the following materials: aluminium, composite, uPVC or wood.

Some ways to reinforce front doors for additional security include:

  • Door bars – use these to reinforce the door frame
  • Door chains – restrict how far the door can be opened
  • Door closers – a mechanism to more easily, quickly and quietly close a door
  • Cylinders – see the section on security door locks for more information
  • Door opener – such as a buzzer that releases the door so you don’t have to physically answer the door
  • Hinges – assess how many are necessary, as well as what type of pins are used (removable pins may be more susceptible to tampering)

Additional features to secure the door are available, such as those designed to prevent drilling or picking of the door and lock.

You may also wish to choose more decorative designs for front doors, so think about the number of panels or windows it may need, as well as which colour would match your brand identity.

Which you’ll use depends on what type of business you’re securing, including the types of premises and stock. Similarly, if you run a home-based business, then you may need to consider front door security that’s suitable for both residential and commercial uses.

Secure front doors are just one element of protecting your business premises. They can be used in conjunction with an intruder alarm system for additional security.

4. Door security bolts

Often made of brass, door security bolts offer an additional element of protection for wooden or timber doors.

Concealed inside the door, rack bolts secure the door to the frame. Usually, two bolts per door are used (at the top and bottom).

The bolt is morticed into the door and is both locked and unlocked from the inside, with a key. A splined key is used – it features grooves on the key that connect with the lock to operate the mechanism.

What are the next steps?

From reading this article, you’ve learned more about security doors and how they could be used to protect your business.

We’ve provided information about how security doors work and some of the potential benefits, as well as a more detailed look at some of the key features, such as locks and bolts.

For more detailed information based on your specific business’ requirements, fill in the form at the top of the page to compare quotes for business security now.

Scarlett writes for the energy and HR sections of the site, as well as managing the Just Started profiles. Scarlett is passionate about championing equality and sustainability in business.

Back to Top