Door Access Control Options for Commercial Premises

Why businesses move beyond keys

Mechanical keys have three problems: they are copied easily, they are never returned reliably, and changing locks after every staff departure gets expensive. Electronic access control replaces all of that with credentials you can issue, restrict and cancel in minutes, plus a record of who entered which door and when.

Cards and fobs

Proximity cards remain the workhorse of office access control. They are cheap, durable and simple to reissue. The weakness is sharing: a card opens the door for whoever holds it, so cards suit general staff areas where convenience matters more than absolute identity.

PIN pads

PIN access costs little and needs nothing to carry. It suits low-traffic doors such as storerooms, but codes spread quickly and shoulder-surfing is real. Use PIN pads where the risk is low, and change codes on a schedule, not just when someone leaves.

Biometric readers

Fingerprint and face readers tie access to a person rather than an object, which is why server rooms, finance areas and laboratories favour them. They cost more per door and need clean, reasonably lit mounting positions. A common and sensible pattern is biometrics on sensitive doors, cards everywhere else.

Whatever you choose, plan for the edge cases: visitors, contractors, cleaners and power failure. A good access plan says what happens in each case. Propped-open fire exits are usually a sign that nobody planned them.