When Should a Business Rekey Its Locks?

Rekeying is one of those maintenance tasks that's easy to put off simply because nothing feels urgent about it. The locks still work, the doors still open, and there's no obvious sign anything needs attention. But rekeying isn't really about whether the hardware is functioning, it's about whether you still have full control over who can get in, and that's a very different question with a very different answer at several points in a business's life.

Why Commercial Locks Fail Faster Than Residential Locks

After Any Employee Departure With Key Access

This is the single most common trigger, and the one businesses are most likely to skip. When an employee leaves, whether the departure was routine or not, any key they held is still a working key until the lock is rekeyed. Asking for the key back is a reasonable first step, but it doesn't account for copies that may have been made without your knowledge, so it isn't a complete fix on its own.

When You're Not Confident How Many Keys Exist

Over the life of a business, keys tend to accumulate in ways nobody tracks precisely: a set for the original staff, a few for contractors who needed temporary access, a spare cut for a manager who's long since moved on. If you were asked right now exactly how many keys to your business are currently in circulation and genuinely couldn't answer, that uncertainty itself is the reason to rekey.

After Moving Into a New or Previously Leased Space

Whatever locks came with a commercial space were controlled by whoever occupied it before you, and there's no reliable way to know how many keys they issued or to whom. Rekeying immediately after taking possession of a new space is standard practice for exactly this reason, regardless of what the previous tenant tells you about their own key management.

Following Any Break-In Attempt

An attempted break-in, successful or not, is a signal that your current locks were tested. Even if the lock held, rekeying afterward is a reasonable precaution, particularly if there's any chance the attempt involved someone with prior legitimate access rather than a stranger.

Signs Your Business Security Needs an Upgrade

After Using Temporary Contractors or Vendors With Key Access

Cleaning crews, contractors, and vendors sometimes need temporary access to complete their work, and that access doesn't always get formally closed out once the job is done. If a vendor relationship has ended, or if you're not confident a temporary key was actually returned, rekeying closes that loop cleanly.

On a Reasonable Schedule Even Without a Specific Trigger

Beyond the situations above, businesses with regular staff turnover or high foot traffic benefit from rekeying on a periodic schedule rather than waiting for a specific incident to prompt it. There's no universal interval that fits every business, but if it's been several years since your last rekey and your staffing has changed meaningfully in that time, it's worth treating as due.

What to Do When It's Time

1. Identify every exterior door and interior access point that needs to be included, not just the main entrance
2. Decide whether a master key system makes sense if you need to give different staff different levels of access
3. Schedule the rekey promptly rather than waiting for a convenient slow period, especially after an employee departure
4. Update your records on who holds which keys going forward, so the next decision about whether to rekey is easier to make

How a Locksmith Can Help

A commercial locksmith can rekey your existing hardware quickly, often within the same visit, without needing to replace the locks entirely unless the hardware itself is outdated or damaged. Professional commercial lock services also cover setting up a master key system at the same time, so you're not just closing a gap but improving control going forward.

Frequently Asked Questions

Q: Does rekeying mean replacing the entire lock?

A: No. Rekeying changes the internal pins so existing keys no longer work, while the lock hardware itself stays in place. Replacement is only needed if the hardware is damaged or outdated.

Q: How long does rekeying a commercial property take?

A: For most businesses, rekeying can be completed in a single visit, though the exact time depends on how many doors and locks are involved.

Q: Is it cheaper to rekey or replace locks after an employee leaves?

A: Rekeying is almost always the more cost-effective option when the existing hardware is in good condition, since only the internal pins need to change.

Q: How often should a business rekey without a specific incident prompting it?

A: There's no fixed rule, but businesses with regular staff turnover often find every few years to be a reasonable baseline, adjusted based on how much staffing has changed.

Q: Can rekeying be combined with adding a master key system?

A: Yes, and it's often done at the same time, since a locksmith is already working on the affected locks during the rekey.

Final Thoughts on Rekeying Your Business

Rekeying isn't about reacting to something going wrong, it's about staying confident that you actually know who can get into your business at any given time. Employee turnover, new leases, and unreturned vendor keys all quietly erode that confidence if left unaddressed. Treating rekeying as routine, rather than something only done after an incident, keeps a business a step ahead instead of catching up after the fact.