The quiet risk of keys nobody collected
When an employee leaves, the paperwork is usually handled with care. Final schedules are settled, accounts are closed, and passwords are changed. Keys, on the other hand, often get a casual mention at the end of a meeting, if they get any mention at all.
A key does not expire when a job ends. It continues to open the same cylinder it opened last week, and it will keep doing so until somebody changes what the cylinder responds to. That is the entire reason rekeying exists, and it is why it deserves a place on every offboarding checklist.
None of this means the person who left is a threat. Most departures are friendly, and most former staff have no interest in returning uninvited. The point is that a business should not depend on goodwill to protect cash, records, inventory, and equipment. A lock that still honors an old key is a lock that depends on trust rather than control.
There are other ways a key can slip out of sight too. Copies get made without permission, keys get lost in a car or a gym bag, and some people hand a key to a relative who needs to drop something off. Rekeying resets all of that at once, whether the departure was friendly or not.
Offices in Broward County face a few extra wrinkles. Shared buildings, multi tenant plazas, and seasonal staff all mean keys circulate more widely than owners realize, and it is common for a business to inherit a key arrangement from a previous tenant that nobody has ever audited.
What rekeying actually changes
A pin tumbler lock, the kind found on most office doors, works because small pins inside the cylinder line up only when the correct key is inserted. Rekeying means a technician rearranges or replaces those internal pins so the lock responds to a new key. The old keys still slide in, but they no longer turn.
The lock itself, the handle, the deadbolt, and the door usually stay in place. That is why rekeying is a sensible response to a departure: you get a fresh set of working keys without paying for a new set of hardware. Our explainer on how rekeying a lock works shows the mechanism in more detail.
Rekeying is not the right answer in every case. If a lock is worn, damaged, or of poor quality, replacement makes more sense, and our comparison of rekeying versus replacing locks helps you decide. The technician can often tell the difference after a brief look at the cylinder.
You can also change the style of key system while you are at it. A business that had a handful of unrelated keys can move to a tidy arrangement where each person receives only the keys they truly need.
Rekeying also keeps the visible look of your entrance the same. Customers and neighbors see no change, which suits businesses that prefer to handle a departure privately. The change happens inside the cylinder, and your door continues to look exactly as it did before.
Make a list of every door, drawer, and cabinet before anyone arrives
Before you call a locksmith, walk the premises with a notepad. Most owners think of the front door and the back door first, then discover a surprising list of other places that take keys: a storage room, a server closet, a cash drawer, a file cabinet, a delivery gate, a utility cupboard, a sign box, even a company vehicle.
Write each location down, then beside it write who currently holds a key. Be honest about the uncertain ones. If you cannot say with confidence who has the supply room key, assume the answer is more people than you would like.
This list becomes the plan for the visit. It tells the technician how many locks need attention and which ones share a key, and it helps you decide which doors deserve the strongest response. Desk and cabinet locks are easy to forget, so our short guide to file cabinet and desk locks is worth a glance.
A tidy list also saves time with the technician. Instead of discovering locks one at a time, you can hand over a complete picture and ask for advice on priorities.
Take photographs of the doors if it helps. A picture of each lock shows the brand and style, which helps the locksmith think about parts and approach before arriving. It also gives you a record of what existed before the work.
- Exterior doors, including any rear, side, and loading entrances.
- Interior rooms that hold money, records, tools, or stock.
- Desks, file cabinets, and lockboxes used by the departing person.
- Gates, garage entrances, and shared spaces with other tenants.
- Company vehicles, mailboxes, and alarm closets.
Deciding which locks to rekey first
Not every door carries the same risk. Start with the locks that guard the most valuable or most sensitive things, and the ones the departing person had the most freedom to use. A front entrance and a cash room come well before a break room closet.
Think about how the departing employee worked. Someone who opened and closed the building every day held the most keys, so most locks should be treated as compromised. Someone who held a single key to a supply cabinet does not require the whole building to be changed.
If the departure was tense or the person had access to financial or personal records, treat the whole set as urgent and rekey everything that person could reach. If the exit was routine and the keys have been returned, a narrower response can be perfectly reasonable, though many owners still choose to rekey on principle.
Ask the technician for an opinion. A good one will talk through your layout and recommend a sensible order, without pushing you toward more work than the situation calls for.
Keep in mind that a careless order of operations can leave gaps. If you rekey the front door but leave the back door for later, the old key still enters the building. Decide on a sequence that closes the most exposed doors first and finishes the rest the same visit if you can.
Keyed alike, master keys, and a cleaner system
A departure is also a good moment to look at how your keys are organized. Some businesses have a drawer full of keys that no one can identify, and each employee carries a heavy ring. Rekeying gives you the chance to bring order to that.
One approach is to key several doors alike so one key opens them all. That suits a small shop where everyone is meant to enter everywhere. A second approach is a master key system, where each person has a key for their own areas and a supervisor holds one key that opens everything. Both are described in our guides to keyed alike and master key setups and master key systems for business.
The trade off is simple. A system that is more convenient is also more sensitive, because losing the top key matters more. Think about who really needs broad access and who can be given less.
Whatever you choose, record it. A small chart showing which key opens which door, kept somewhere secure, saves enormous effort the next time somebody leaves or a key goes missing.
Be careful with the top key in a master system. Because it opens everything, it should be signed for, kept on a person rather than in a drawer, and replaced immediately if it goes missing. Many owners keep a sealed spare in a locked place and note who knows where it is.
Restricted keys and keys that cannot be copied at the hardware store
One of the ways a departing employee might keep access is by having a spare cut before they leave. At a typical hardware store, a common key can be copied in moments by anyone who walks in. A restricted key system makes that much harder, because the blanks are controlled and copies require authorization.
Restricted keys cost more to set up, but they give a business real control over who can duplicate a key. They are worth thinking about when you have several employees, high turnover, or valuable stock. Our overview of high security and restricted keys explains how they work.
If restricted keys feel like more than you need, a simpler habit helps. Mark your keys as not to be duplicated and make it a rule that copies go through one person. A rule is not a physical barrier, but it sets clear expectations.
Whichever route you take, ask the technician to explain what protection each option really provides. It is easy to assume that a stamped warning on a key prevents copying, when in practice it only discourages it.
Ask any locksmith who proposes a restricted system how new keys will be ordered later. You need to know who is authorized to request copies and what proof they must show. A restricted system that nobody can operate smoothly soon becomes a source of frustration.
Keys versus electronic access
Some offices find that the cleanest answer to repeated key problems is to change how people get in. Keypad locks, card readers, and similar systems let you remove one person's access without touching any hardware, and many produce a record of who entered and when.
These systems come with their own concerns. Codes get shared, cards get lent, batteries and power fail, and the software needs someone to look after it. They also tend to suit certain doors better than others. A discussion of the trade offs appears in our article on access control versus keys for a small business.
Many businesses end up with a blend: electronic access on the main entrance for staff, traditional high quality cylinders on private rooms, and a master key held by management. The mix depends on how many people come and go and how much accountability you need.
If you move to electronic access, remember that the departing person's code or card must also be removed. Do that when you change the locks, on the same checklist, so nothing is left half finished.
Think about power and humidity too. Coastal air, storms, and outages in South Florida put pressure on electronic equipment, and a mechanical backup for the main door is a sensible safeguard. A key override on an electronic lock is only useful if somebody still holds a working key.
Doors that need more than a rekey
Sometimes the departure reveals other weaknesses. A storefront door that sticks, a lock that has been forced in the past, or a frame that moves when you push on it all deserve attention. Rekeying a lock that sits in a damaged door only partially improves things.
Commercial doors also have grades of hardware, and low grade residential locks on a business entrance are a common finding. If yours is one of them, the guide to commercial lock grades explains what to look for, and the page on storefront door lock repair covers frequent trouble spots.
Emergency exit hardware needs particular care. Exit devices and panic bars are there for safe evacuation, and their rules are set by local authorities and building codes that vary. Ask your building manager or the local fire authority about requirements before changing anything, and read our introduction to panic bars and exit devices.
Take the opportunity to ask the technician to look at everything on the walk through. A fresh set of eyes often spots a worn latch or loose strike that you have walked past every day for years.
Windows, roll up doors, and rear gates are another place to look. A rekey does nothing for a latch that can be lifted or a gate that is held shut by a loose chain. During hurricane season it is worth checking how each opening closes and what secures it.
Handling the human side with care
Changing locks after someone leaves can feel awkward, particularly in a small team where everyone knows each other. It helps to treat it as routine procedure rather than a statement about any individual. Say that the business rekeys whenever keyholders change, and mean it.
Communicate with the remaining staff. They will need new keys, and they should know who is handing them out and how to report a lost one. A short note explaining that keys are not to be copied avoids confusion later.
Make sure the departing person is not left in an awkward spot, either. If they still hold personal items at the office, arrange a time for collection that suits both sides. A calm handover reduces the chances of conflict.
Finally, keep a record of the date, the doors that were rekeyed, and who received which key. That small piece of paper protects you if a dispute ever comes up.
If the departure involved a dispute, consider asking a trusted colleague to be present during the lock change. Having a second person helps keep the process orderly and means someone else can confirm which doors were completed and when the keys were handed out.
Planning ahead for the next departure
The ideal time to prepare for a departure is before it happens. Keep an up to date list of keyholders, issue keys against a signature, and treat every duplicate as a controlled event. That habit turns a stressful rekey into a straightforward one.
Think about turnover too. In South Florida, seasonal businesses, restaurants, and shops often see staff change frequently. If your team shifts several times a year, a restricted key system or an electronic setup may pay back its setup effort through the time and worry you save.
You can arrange the work with a locksmith who understands commercial needs. Our commercial locksmith page describes the kinds of jobs that fall into this category, and the pages for Fort Lauderdale and Plantation offer general guidance for businesses in those places.
When you call, describe your layout, the number of doors, and the situation around the departure. The work and price are explained before it begins, and the finished locks are tested with you.
Finish by testing every lock together with the technician. Turn each key in each door, confirm the old key no longer turns, and check that interior doors close and latch without force. Any problem is much easier to fix while the technician is still on site.