Access control replaces keys with cards, fobs, codes, or fingerprints. Costs $500-$3,000 per door installed. You manage who enters which doors and when, and you get a log of every entry. When an employee leaves, you deactivate their credential in seconds. No rekeying needed ever again.
What Is Access Control in Simple Terms?
An electronic system that controls who can open which doors and when. Instead of keys (which can be copied), each person gets a unique credential: a card, a fob, a PIN code, or their fingerprint. The system checks the credential against a database and decides whether to unlock the door. If the person is authorized for that door at that time, it opens. If not, it stays locked.
It also logs everything. You can see exactly who entered which door and at what time. According to a 2025 ASIS International survey, 78% of commercial properties with 20+ employees use some form of electronic access control. It's not a luxury anymore. It's standard.
What Types of Access Control Exist?
Four main types, each suited to different needs and budgets:
- Keypads ($500-$800/door): Users enter a PIN code. Simple, affordable, no credentials to carry. Good for small offices with 5-20 people. Downside: codes can be shared.
- Card/Fob readers ($800-$1,500/door): Users tap a card or fob against a reader. Each credential is unique. Can be deactivated instantly. The most popular option for mid-size businesses.
- Biometric ($1,200-$2,000/door): Fingerprint or facial recognition. Impossible to share or duplicate. Best for high-security areas like server rooms or cash handling.
- Mobile/smartphone ($1,000-$2,500/door): Users' phones act as credentials via Bluetooth or NFC. No physical card to lose. Growing fast in tech companies.
What's the Real Cost of Access Control?
Initial hardware and installation runs $500-$3,000 per door. But here's what most vendors don't tell you: some systems have monthly software fees of $5-$50 per door. Over 5 years, that adds $300-$3,000 per door in recurring costs. Ask about ongoing fees before you sign.
We install systems from HID, Alarm Lock, and Kaba/Dormakaba that don't require monthly software subscriptions for basic functionality. Cloud management is available as an option, not a requirement.
How Does Access Control Save Money Long Term?
No more rekeying. According to Kaba Group research, the average commercial building rekeys 2-3 times per year at $50-$100 per lock. A 20-door building spends $2,000-$6,000 annually just on rekeying. Access control eliminates that cost entirely. When someone leaves, you deactivate their card in 5 seconds from a computer.
There's also reduced liability. If something goes missing and you have access logs, you can narrow down exactly who was in the building. That's valuable for insurance claims and internal investigations.
Do Small Businesses Really Need Access Control?
If you have more than 5 employees and any sensitive areas (server room, pharmacy, cash office, patient records), yes. If you're a solo practitioner with one office door, probably not. A good keypad lock at $300-$500 gives you key-free entry without the complexity of a full access control system.
The sweet spot is 10-50 employees with 3-10 doors. That's where access control clearly beats key management in both cost and security. Below 10 employees, a master key system or keypad locks might be sufficient.