How to Choose the Right Access Control System for Your Business
If you manage a commercial property in Hampshire, you already know that controlling who enters your building is about more than just locking the front door. Whether you run an office in Basingstoke, a warehouse in Southampton, or a clinic in Winchester, the right access control system protects your people, your assets, and your reputation.
But with so many technologies on the market — from traditional key fobs to smartphone-based credentials and biometric readers — choosing the right system can feel overwhelming. This guide cuts through the jargon and helps you make a confident, informed decision.
What Is Access Control and Why Does Your Business Need It?
Access control is any system that manages who can enter specific areas of your premises, and when. At its simplest, it replaces mechanical keys with electronic credentials that can be issued, revoked, and tracked from a central point.
For commercial properties, the benefits go well beyond convenience. A properly specified access control system gives you a complete audit trail of every entry and exit, the ability to restrict access to sensitive areas such as server rooms or stock areas, instant credential revocation when staff leave, and integration with your CCTV and intruder alarm systems for a joined-up security approach.
Many insurance policies and industry regulations now expect businesses to have auditable access control in place — particularly in sectors like healthcare, education, and finance.
The Main Types of Access Control Technology
Card and fob systems remain the most popular choice for UK businesses. Modern encrypted cards, such as MIFARE DESFire, offer strong security against cloning and are cost-effective to deploy across multiple doors. Paxton Net2 is one of the most widely installed platforms in the UK and is the system we specify most frequently at ADP for its reliability and ease of management.
Biometric readers use fingerprints, facial recognition, or iris scanning to verify identity. They eliminate the risk of lost or shared credentials entirely, making them ideal for high-security areas.
Mobile and smartphone credentials allow staff to use their phone as a virtual key, typically via Bluetooth or NFC. This is growing in popularity for offices and co-working spaces where convenience is a priority and the workforce is tech-savvy.
PIN code keypads are the simplest option and work well as a secondary layer of security alongside card or fob access. On their own, they are less secure because codes can be shared, but combined with another method they add a useful extra barrier.
Card & Fob Systems
Biometric Readers
Mobile Credentials
PIN Keypads
How to Decide What Your Business Needs
The right system depends on your premises, your people, and your risk profile. Here are the key questions to work through:
How many doors and entry points?
This determines the scale of the system and whether you need a networked solution or standalone units.
How many users?
A small office with 10 staff has very different needs to a multi-tenanted building with 200 users and visitors.
Do you need zone-based restrictions?
If certain areas require higher security clearance, your system needs to support multiple access levels.
Do you need integration with other systems?
If you have CCTV or intruder alarms, linking them to access control creates a much more powerful security setup.
What Does Access Control Cost?
In the UK, a typical commercial access control installation costs between £400 and £900 per door, depending on the technology, the complexity of the wiring, and whether the system is networked. A straightforward four-door Paxton Net2 installation for a small office, for example, will typically fall in the £2,000–£4,000 range including hardware, installation, and commissioning.
The most important thing is to get the specification right from the start. An experienced installer will survey your premises, understand your operational needs, and recommend a solution that fits — rather than overselling technology you do not need.
Why Hampshire Businesses Choose ADP Security
ADP Security Systems has been designing, installing, and maintaining access control systems across Hampshire for nearly 30 years. From our base in Petersfield, we work with businesses in Basingstoke, Winchester, Southampton, Fareham, and across the county.
What sets us apart is our integrated approach. Access control works best when it is part of a complete security strategy — linked to your CCTV, intruder alarms, and monitoring systems. As an SSAIB-certified, ISO 9001-accredited company, we deliver everything under one roof, from initial survey through to installation, commissioning, and ongoing maintenance.
We are proud partners of Paxton, one of the UK’s leading access control manufacturers, and our engineers are fully trained on the latest Net2 and Entry systems.
Ready to Discuss Access Control for Your Business?
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