Why every turnover is a lock event
When a tenant hands back the keys, you receive the keys you know about. You do not receive the copies made at a hardware store, the key a cousin borrowed for a weekend, or the one left with a dog walker. A lock that opens for people who no longer live there is a lock that has stopped doing its job.
Property managers sometimes treat rekeying as an optional extra, something to do only when a tenant left on bad terms. That framing misses the point. The question is never whether this particular tenant seems trustworthy. The question is whether your records can prove who holds a working key to the unit right now.
A consistent routine also protects you in a dispute. If a tenant reports a theft or a safety problem, being able to say the cylinders were changed before they moved in and that you hold the only other keys is a clear, defensible position. Without that, you are guessing.
South Florida adds its own pressure to this. Rental stock here turns over often, and many units sit empty between leases while owners are out of town or waiting on repairs. Humidity, salt air and heavy summer rain wear on door hardware, so a vacancy is the right time to look at the whole entry, not only the key.
Think of the turnover as a reset button for access. Everything that depended on the previous tenant, from keys to codes to remote openers, should be accounted for before the next household moves in.
Rekey, replace, or leave alone
Rekeying means changing the inside of the lock cylinder so that old keys no longer turn it, while the lock body, trim and finish stay where they are. It is the normal answer at turnover because the hardware is usually still sound and only the key relationship needs to change. Our explanation of how rekeying works shows what actually happens inside the cylinder.
Replacement makes sense when the hardware itself is the problem. A deadbolt that sticks, a handle set that wobbles, a latch that no longer catches, or a finish worn through to bare metal are all reasons to swap the lock rather than reset it. The comparison in rekey versus replace helps you decide door by door.
Leaving a lock alone is rarely right, but there is one honest exception: a unit where the previous occupant stays on under a renewed lease and nothing about the household changed. Even then, many managers prefer a fresh cylinder on a schedule so the key history stays tidy. Whatever policy you pick, write it down so every unit is treated the same way.
Mixed outcomes are normal within one property. A first floor unit with a worn entry set might need a replacement while the unit upstairs only needs the cylinder changed. Decide door by door, and resist the urge to apply a single answer to the whole building just because it is simpler to describe on a work order.
The walkthrough that comes before the locksmith
Start the lock work during the move out inspection rather than after it. Walk every door that has a lock and operate each one with the returned key: front door, back or patio door, any side entry, the mailbox if you manage it, a utility closet, a storage cage, and the garage entry if there is one. Note anything that binds, sticks, rattles or needs extra force.
Count what came back. Compare the returned keys against the key log from move in. If a key is missing, that is useful information, and it makes the rekey non negotiable rather than a judgment call. Record the shortage in the file so there is a paper trail.
Check the doors as well as the locks. A swollen door in a humid South Florida summer can make a perfectly good deadbolt feel broken, and a loose strike plate can make a latch miss. Our guide on doors that will not latch explains how to tell a door problem from a lock problem so you do not pay to replace something that only needed adjusting.
Take a moment to look at the frame as well. Cracked wood around the strike, loose screws in the hinge side and gaps that let daylight through are all signs the door needs attention. A strong lock in a weak frame gives a false sense of security, and turnover is the easiest moment to notice that.
Building a key ledger that actually works
A key ledger is a simple record, and its value is entirely in being kept up to date. For each unit, list every lock, the key type, how many keys exist, who received them, on what date, and who signed for them. When keys come back, mark them returned. When a tenant asks for an extra, log it and charge for it according to your lease.
Resist the temptation to hand out unlimited copies because it saves a conversation. Every extra key is another unknown. If tenants genuinely need more keys for a household, make the duplicates through a controlled source and record each one. The article on where and how to duplicate keys covers why the source of a copy matters.
Store spare management keys somewhere with real access control, not a drawer in the leasing office. A lockbox with a code that never changes is not control. Change codes when staff leave, and keep a short list of who is authorized to sign keys out. The ledger is only as good as the habits behind it.
Keep the ledger separate from the lease file so you can find it in a hurry. A single sheet per property that lists doors and key counts is easier to audit than a folder of loose receipts. Check it at least once whenever a unit changes hands.
Photograph the key set when you hand it over, with the tenant visible or the date noted. It sounds small, but a clear record of how many keys were given prevents the awkward conversation at move out when the count does not match.
Keying the whole property sensibly
If you manage a building or several units that share a common area, think about the keying scheme before you start cutting keys. A well planned scheme lets each tenant have one key for their own door and, where appropriate, access to shared spaces, while you keep a master that opens everything. That is far better than a ring of twenty unrelated keys.
Keyed alike, where several locks open with one key, suits a single household with front and back doors. It is a poor fit for separate tenants. A master key system is the structure that gives each unit its own key while letting management reach all of them. Our pages on keyed alike and master key setups and on master key systems explain the tradeoffs.
The more doors share a master, the more careful you must be with that master. Treat it like a bank key. If it goes missing, the problem is not one unit, it is the entire system, and the fix is much larger than a single rekey.
Write the keying plan on paper before anyone cuts a key. A one page diagram showing which key opens which door, and who holds each level, saves confusion for years and helps the next property manager understand what you built.
Keypad and smart locks for frequent turnover
Properties with frequent turnover, such as furnished rentals and short stay units, often benefit from locks where the code changes instead of the key. A keypad deadbolt lets you remove the previous occupant's code and set a new one without cutting anything. The details are in our piece on keypad deadbolts for rental turnover.
Smart locks go further, with schedules, temporary codes and a log of who entered. They are especially useful if you handle cleaners, maintenance and inspectors who need access on specific days. Read smart locks for short term rentals before choosing, because not every model suits every door or every workflow.
Electronic locks bring their own chores. Batteries need attention, codes need retiring, and apps need an administrator who stays in control. A mechanical key backup is wise on any door in a coastal climate, because humidity and salt air are hard on electronics. Weigh convenience against upkeep, and remember that a lock nobody maintains protects nobody.
If you manage more than a handful of doors, ask yourself who will keep the system running. A tidy electronic setup in the first month becomes a headache in the sixth if codes are never retired and batteries are never changed. Assign the task to a named person.
Condos, associations and shared hardware
If your units sit inside a condo or an association community, the lock on the unit door may not be entirely yours to choose. Some buildings require the association to hold a key, some control the entry doors and common areas, and some have rules about what hardware can be installed. Requirements vary, so ask the association before you order anything.
Our guide to condo and association lock changes lays out the questions worth asking. A rekey that leaves the association without a working key can create a problem the next time there is a leak or an emergency, so coordinate before the work, not after.
Fire and life safety also matter in multi unit buildings. Exit hardware, unit entry doors and common doors have their own expectations, and the right authority to ask depends on the building. A locksmith can advise on how the lock functions, but your association, building manager or the local authority should confirm what is permitted for your specific property.
Keep copies of any written permission you receive from the association. If a question comes up about a lock change months later, a saved email or letter settles it and keeps the relationship with the board friendly.
Scheduling lock work around vacancies
Lock work fits neatly into the gap between tenants, but only if it is planned. Add the rekey to your standard make ready checklist, alongside cleaning, painting and repairs, so it is never forgotten. Coordinate it before the new tenant receives any key, not after.
Sequence matters. Do repairs and painting first, since contractors need access and may hold the old keys. Rekey once the crews are finished, then hand the new keys to the incoming tenant. If you rekey too early, you either have to give contractors new keys or leave the unit with a lock you cannot easily enter.
When you manage several properties, grouping the work by area saves repeated trips. If you have a mix of rekeys and replacements, tell the locksmith up front what each door needs. You can read how these jobs differ for individual owners in our guide to rekeying rental properties as a landlord.
A good rule is to give the locksmith a realistic window and a clear list of units. Vacant units are simple because nobody needs to be home. Occupied units need notice to the tenant according to your lease and local rules, so confirm what applies to you before scheduling.
What to expect when you call
Call and describe the property, the number of doors, the lock types you can see, and whether anything is already damaged. The more specific you are, the better the work can be planned. The work and the price are explained before it begins, so you can approve what makes sense for each unit.
On site, the locksmith works through each door in turn, then tests every new key with you. Test the front door, then the back, then any extras. Ask for the keys to be labeled or bagged by unit so there is no confusion when you hand them to the tenant.
If you find a stubborn lock during the visit, it is better to say so than to work around it. Some cylinders are worn, some keys are cut poorly, and some doors have been drilled in the past. A locksmith can tell you whether a repair, a rekey or a replacement is sensible. For nearby service areas, see pages such as rekey service in Coral Springs and lock installation in Davie as general guidance.
Bring the unit file to the visit if you can, or at least the door count and any notes from the walkthrough. If a deadbolt was replaced recently and you know its brand, mention it. Small details save conversation and help the work go smoothly.
Mistakes managers repeat
The most common mistake is rekeying only the front door. A back slider, a side door or a storage room left on the old key undoes the work. Make a list of every opening, tick them off, and confirm each one on completion.
The second mistake is trusting a key log that nobody checks. Logs help only if you reconcile them at every turnover. If three people have access to the key cabinet and none of them sign anything, the log is decoration.
The third is putting off hardware that is already failing. A sticking deadbolt will eventually trap a tenant out or in, and that becomes an emergency at the worst moment. Fixing it between tenants is calmer for everyone. If a tenant does get locked out later, the advice in our renters lockout guide shows what a sensible first call looks like.
A simple turnover routine you can repeat
A routine only works when it is short enough to follow. Start with the walkthrough and key count, record any shortage, and decide door by door whether each lock needs a rekey, a repair or a replacement. Call and describe the full list at once so the work can be planned in a single visit.
Once the work is complete, test every key with the locksmith in the lock before they leave, and test the thumb turn from the inside too. Label the key sets by unit, update the ledger before you leave the property, and store the management copies where only authorized staff can reach them. If a lock was upgraded to a keypad or smart model, write down who administers the codes.
Finally, look ahead. If a unit needs a new door, a new frame or storm hardware before the next hurricane season, flag it while the unit is empty. For a broader view of what makes a lock worth keeping, our guide on whether your locks are good enough is a helpful companion. Small, consistent steps at every turnover keep a rental portfolio secure without drama.