No matter the type of property, every building requires a robust mechanism to control access. As experts in the field, we at CCTV Glasgow understand the significance of ensuring that tenants, guests, and delivery carriers can seamlessly and securely access a building. In essence, what you need is a top-notch door entry system.

Key Takeaways:

  • Door entry systems are essential for controlling access to buildings.
  • They come in various types, each with its unique features and benefits.
  • Modern systems offer advanced features like video capabilities and wireless connections.
  • Choosing the right system depends on the building’s infrastructure and access needs.

What is a Door Entry System?

A door entry system, at its core, is a building access solution installed at entry points to manage ingress and egress. These systems empower you to control who can enter a room or building by verifying the individual’s identity and granting access to authorised persons. Moreover, many of these systems also facilitate visitors to request access to a room or building.

Where to Use Door Entry Systems:

  • Apartments: Essential for maintaining building security while ensuring visitors can effortlessly request access from residents.
  • Businesses and Offices: Commercial door entry systems are perfect for office buildings, allowing employees to access without the hassle of keys or fobs.
  • Gated Communities: Suitable for both multifamily and commercial properties.
  • Industrial Buildings: Warehouses and self-storage facilities benefit from these systems, ensuring only authorised personnel can access.

How Does a Door Entry System Work?

A door entry system operates by verifying the identities of authorised individuals and providing a mechanism for visitors to request property access. The hardware installed at the entrance, often referred to as the base station, is crucial. Some systems might also necessitate hardware in every unit throughout the building, termed substations.

Communication Methods:

  • Wired Systems: Substations and base stations communicate via wiring.
  • Wireless Systems: These are internet-connected and communicate via the Internet Protocol.


  1. A visitor searches for a resident in the system’s directory and contacts them.
  2. The system notifies the tenant of the visitor, typically through a phone call or mobile app notification.
  3. The tenant communicates with the visitor and grants access by pressing a button.
  4. Tenants can also use the system to grant themselves access using keycards, fobs, or mobile apps.

Types of Door Entry Systems

The term “door entry system” encompasses a broad spectrum of building access solutions. Here’s a breakdown:

1. Access Control Systems

An access control system is a solution that allows authorised users to grant themselves property entry with a verified credential. These systems eliminate the need for traditional locks and keys, offering unparalleled convenience.

Types of Access Control Systems:

  • RFID Door Entry Systems: Uses radio waves to scan data stored inside an RFID tag. Examples include fob access control systems and key card door entry systems.
  • Keypad Door Entry Systems: Users enter a PIN code on the keypad to gain access.

2. Buzzer Systems

These systems allow visitors to alert tenants of their presence and let tenants communicate with visitors and grant access remotely. However, they often require extensive wiring throughout the building, making them less ideal for certain setups.

3. Door Phone Entry Systems

These systems enable visitors to communicate with building tenants via a telephone call. While easy to use, they’re somewhat outdated and can be unreliable.

4. Intercom Systems

Intercoms are versatile door entry systems that facilitate communication between visitors and tenants. The best intercom systems offer features like video calling, cloud-based management, and mobile app controls.

Features of the Best Door Entry Systems

When scouting for the best entry system for your establishment, certain features stand out:

1. Video Capabilities

Systems with cameras enable video calling, allowing tenants to visually confirm the visitor’s identity, enhancing security.

2. Wireless Systems

Wireless systems, especially those that don’t require in-unit hardware, save on installation costs and offer unmatched convenience.

3. Cloud-Based Systems

Cloud-based systems allow for remote management, ensuring that the resident directory is always up-to-date and accessible from anywhere.

4. Integrations

Systems that integrate with property management software and other tech solutions streamline processes, saving time and enhancing efficiency.

Advanced Features in Modern Door Entry Systems

As technology evolves, so do door entry systems. Modern systems are now equipped with features that not only enhance security but also provide convenience and ease of use.

1. Touchless Door Access Control Systems

In the wake of the global pandemic, touchless technologies have gained prominence. Touchless door access control systems allow individuals to gain entry without physically touching any device, thereby reducing the risk of germ transmission.

Benefits of Touchless Systems:

  • Hygiene: Reduces the spread of germs and viruses.
  • Convenience: Quick and hassle-free access.
  • Security: Advanced sensors and technologies ensure only authorised access.

2. Integration with Other Security Systems

Modern door entry systems can seamlessly integrate with other security systems like CCTV cameras, alarm systems, and more. This holistic approach ensures comprehensive security coverage.

Advantages of Integrated Systems:

  • Centralised Control: Manage all security systems from a single platform.
  • Enhanced Monitoring: Real-time monitoring and alerts for any security breaches.
  • Cost-Effective: Reduces the need for multiple standalone systems.

3. Smart Features and Mobile App Controls

With the rise of smart homes, door entry systems now come with features that can be controlled via mobile apps. This allows users to manage access, monitor entry logs, and communicate with visitors remotely.

Smart Features Include:

  • Remote Access Granting: Allow entry to visitors even when you’re not physically present.
  • Real-Time Notifications: Get instant alerts for any access requests or security breaches.
  • Video Calling: Communicate with visitors through video before granting access.

Choosing the Right Door Entry System for Your Needs

Selecting the right door entry system is crucial. It should align with the specific needs of the property and the security requirements.

Factors to Consider:

  • Size of the Property: Larger properties might require more advanced systems with multiple access points.
  • Security Needs: High-risk areas might need more stringent access controls.
  • Budget: There are systems available for various budget ranges, but it’s essential to ensure quality isn’t compromised.

Types of Systems Based on Security Needs:

Security Level Recommended System Type
Basic Buzzer Systems
Moderate Access Control Systems
High Video Intercom Systems
Advanced Biometric Systems

Installation and Maintenance

Once you’ve chosen the right system, the next steps are installation and maintenance.


The installation process varies based on the type of system. While some systems might require extensive wiring, others, especially wireless ones, are easier to install.

Installation Steps:

  1. Site Assessment: Determine the best locations for access points.
  2. Wiring (if required): Lay down the necessary wiring for the system.
  3. System Setup: Install the main control units, access points, and any other hardware.
  4. Testing: Ensure the system works flawlessly.


Regular maintenance ensures the system’s longevity and optimal functioning.

Maintenance Tips:

  • Regular Inspections: Check for any wear and tear or damages.
  • Software Updates: Ensure the system’s software is up-to-date to benefit from the latest features and security patches.
  • Clean Access Points: Especially for touchless systems, ensure sensors and cameras are clean for accurate functioning.

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