Most owners think about their locks exactly once — the day they get the keys — and never again. But knowing when to change business locks is a basic part of protecting your inventory, your records, and your people. Here are the moments that should put lock work on your to-do list.
After an Employee With Keys Leaves
This is the big one. When someone who held a key departs — especially on bad terms — the honest math is simple: you do not know how many copies exist. Standard keys can be duplicated at any hardware store, so collecting the key back does not close the loop. Rekeying the affected doors does.
When You Change Business Locks After a Break-In
After a burglary or attempted break-in, the locks deserve attention even if they look fine. Picked or bypassed locks often show no damage, and if keys were kept anywhere on site, treat them as compromised. It is also the natural moment to upgrade: many break-ins succeed because a storefront still runs hardware chosen decades ago.
When Keys Simply Go Unaccounted For
Retail and service businesses along the US-30 corridor in Merrillville and across Lake County share a familiar story: keys handed to cleaners, contractors, former managers, and vendors over the years, with nobody quite sure where they all are. If you cannot list every keyholder from memory, that is your answer.
When Your Business Outgrows Its Keys
Growth is the quiet reason. A master key system lets you carry one key while employees open only the doors they need. Restricted keyways prevent unauthorized copies entirely. If you are labeling keys with tape and guessing who has what, a locksmith can design something better in a single visit.
Rekey or Replace?
Good news for the budget: most of these situations call for rekeying — new keys, same hardware — rather than full replacement. Replacement makes sense when hardware is worn, damaged, or below the security grade a commercial door should carry.
Jacob’s Lock and Key works with businesses across Northwest Indiana, including Merrillville, Gary, and the surrounding towns. Call (219) 342-5595, seven days a week, 7 AM to 11 PM.
Last updated: 08/17/2026