How to Remove the Risk of Intrusion in Your Workplace

19th November 2025

Keeping your workplace secure is essential for protecting your staff, safeguarding valuable assets, and ensuring daily operations run smoothly. Intrusions, whether opportunistic break-ins, targeted thefts, or unauthorised access, can lead to costly losses, disruption, and long-term damage to your company’s reputation. While many businesses focus on digital security, physical security is equally important and often more vulnerable than people realise.

Reducing the risk of intrusion requires a combination of strong physical barriers, well-planned procedures, and proactive monitoring. Below are some of the most effective strategies for strengthening workplace security, including the often-overlooked area of entry doors, which play a vital role in preventing unauthorised access.

Start with a Comprehensive Security Assessment

Before investing in any security upgrades, it is essential to fully understand your workplace’s vulnerabilities. Conducting a thorough security assessment helps you identify weak points such as poorly lit areas, unsecured access routes, outdated locks, or gaps in surveillance coverage. This assessment can be carried out internally, but for higher-risk sites, hiring a professional security consultant ensures nothing is overlooked. During the assessment, pay particular close attention to how people enter and exit the building. Answers could lie here.

Strengthen Entry Points with More Secure Doors

One of the most effective ways to reduce the risk of intrusion is by replacing weak or ageing doors with high-quality, robust alternatives. Many businesses still rely on timber or lightweight doors, which can deteriorate over time or become prone to forced entry. Upgrading to strong, durable metal doors significantly enhances workplace security. Steel doors are designed to withstand heavy impact, deter break-ins, and provide long-lasting protection against both environmental damage and deliberate intrusion attempts.

These doors often include reinforcements such as multi-point locking systems, anti-jemmy edges, tamper-resistant hinges, and strengthened frames. Not only do they make unauthorised access far more difficult, but they also help businesses comply with modern security standards.

Improve Perimeter Security

A strong front door is a critical line of defence, but intrusion prevention should begin long before someone reaches the building itself. Improving perimeter security helps deter trespassers and provides early warning of suspicious activity.

Elements to consider include:

  • Secure fencing
  • Locked gates
  • Clear sightlines
  • Security lighting
  • Barriers or bollards (to prevent vehicle access close to the building).

Perimeter CCTV cameras can also discourage intruders and support incident investigations if needed.

Enhance Access Control for Staff and Visitors

Intrusions do not always involve forced entry. Some individuals may attempt to enter the premises by blending in with staff, tailgating through doors, or exploiting lax check-in procedures. Implementing controlled access helps prevent unauthorised entry.

Options include:

  • Key fobs
  • Coded entry systems
  • ID cards, turnstiles
  • Biometric access for higher-security environments

Visitor management systems, whether digital or paper-based, ensure guests are logged, supervised, and prevented from wandering into restricted areas, but don’t overlook training staff. Teaching them to challenge unfamiliar individuals politely but confidently also strengthens access control and helps create a culture of vigilance.

Keep Windows, Secondary Doors, and Delivery Points Secure

While main entrances often get the most attention, intrusions frequently occur through overlooked or rarely used entry points. Windows at ground level should be secured with locks and, if necessary, reinforced glass.

Secondary doors, such as those used for deliveries or waste disposal, must be just as strong as primary entrances. These doors are often hidden from public view, making them attractive targets for intruders. Fitting metal doors in these areas can greatly reduce vulnerability.

Delivery procedures should also be assessed. If goods arrive regularly, ensure staff know how to manage access securely and never leave doors propped open for convenience.

Make Your Business Secure

Removing the risk of intrusion in your workplace requires not just one solution, but several. Yes, alarms and CCTV are vital, but when combined with robust metal doors, your business becomes even tougher to break into. When you add another layer of security, such as extra security checks, you become less of a target, so ensure you are combining several tips outlined in this article.