What Is Access Control and Does Your Business Need It?
Access control goes beyond a simple lock and key. We explain the different types of system, who needs one, and how to choose the right solution for your premises.
Access control is any system that manages, monitors and restricts entry to a building, room or area. At its most basic, a lock and key is access control. But modern electronic access control systems go much further — they tell you who entered, when, and from which door; they let you grant or revoke access instantly; and they integrate with your intruder alarm, CCTV and fire alarm systems to create a unified security picture.
Types of Access Control System
Card & Fob Systems
The most common type for commercial premises. Staff are issued proximity cards or key fobs that allow access to designated areas. Cards can be deactivated instantly when an employee leaves — no need to change locks. Works well for offices, retail units and warehouses.
PIN / Keypad Systems
Entry is granted by entering a numeric code. Simple and low-cost, with no physical credentials to lose. Best suited to low-traffic access points or as a secondary authentication method alongside cards. Codes should be changed regularly.
Biometric Access Control
Uses fingerprint or facial recognition to verify identity. Highly secure as credentials cannot be shared, forgotten or stolen. Ideal for high-security areas such as server rooms, cash offices or pharmaceutical stores. More expensive to install but eliminates credential management entirely.
Networked / Multi-Door Systems
A centralised controller manages access across multiple doors, floors or sites. Administrators manage users, set access schedules and review entry logs from a single software interface — often cloud-based. The right choice for larger commercial premises, managed office buildings or multi-site businesses.
Video Door Entry Systems
A camera and intercom at the entrance allows staff inside to see and speak to visitors before granting access. Can be integrated with electric door strikes or magnetic locks. Available as audio-only, video, or IP-based smart video entry systems.
Does Your Business Need Access Control?
Access control is worth considering if any of the following apply to your business:
- ✓You have staff turnover and changing physical keys is impractical or expensive
- ✓Different staff need access to different areas (e.g. stores, server room, cash office)
- ✓You need an audit trail of who entered which area and when
- ✓Your premises are accessed by contractors, cleaners or temporary staff
- ✓You want to control access times — e.g. no access outside working hours
- ✓You are in a managed building or multi-tenanted property
- ✓Your insurer or compliance requirements specify controlled access
Integration With Other Security Systems
One of the biggest advantages of modern access control is how well it integrates with your wider security setup:
- •CCTV integration: cameras can record automatically when a door is opened, or flag access events against video footage for easy review
- •Intruder alarm integration: the system can arm or disarm zones automatically based on who has entered — eliminating the need for separate alarm codes
- •Fire alarm integration: in a fire alarm event, all access-controlled doors can be released automatically to allow safe evacuation
How to Choose the Right System
The right access control system depends on the size of your premises, the number of users and doors, your security requirements, and your budget. A single door to a small office is a very different problem from a multi-floor commercial building with 200 employees and restricted server rooms.
The best approach is a free site assessment with an experienced engineer, who can assess your exact requirements and recommend the most cost-effective solution — without overselling unnecessary complexity.
Free Access Control Assessment in London
Fortech Group installs and maintains access control systems for commercial and residential properties across London. We offer free site surveys with no obligation.