How lockbox access works during a listing
A real estate lockbox is a small device that holds a key to the home. It is typically attached to a door handle, a gate or a post near the entrance. Agents unlock it with a credential, and it lets them retrieve the key and show the property without the owner being present. Some boxes are mechanical and open with a combination that may be shared among agents. Others are electronic and connect to a system that records who opened the box and when.
The convenience is obvious. A buyer's agent can show a house in Boca Raton on short notice, an appraiser can arrive on a weekday while the owner is at work and a contractor can walk through for an estimate. The trade-off is that access is spread across many people the owner never met. Even when everyone is acting professionally, a larger circle of people has had a chance to handle the key, and the owner often has no complete list of who has been inside.
That is why the end of a listing is a good time to review access. If the home sold, the new owner inherits whatever key copies exist. If the listing ended without a sale, the owner continues to live in a house that was open to many people for weeks or months. In either case, a rekey is a clean way to turn many unknown key holders into a known few.
The page on new keys for a new home purchase approaches this from the buyer's side. Here the focus is on the seller, the owner who remains and the person managing a property that has been listed.
Why the key in the lockbox is the one to worry about
The key placed inside a lockbox is, by design, available to anyone with access to the box. If an agent retrieved it and had a copy made for convenience, or if a contractor kept it overnight and returned it the next day, you would not necessarily know. The same is true of a combination that was shared informally among agents or written on a note.
It is worth being fair here. Real estate professionals work under rules, and most are careful. The point is not suspicion of any one person but the practical reality that a key that circulates widely cannot be tracked. A rekey makes the question moot. The old key, in the lockbox or in anyone's hands, stops working once the cylinder has been changed.
A lockbox that stays on a door after the listing ends is a separate concern. If the box still holds a working key, anyone who knows the combination or holds the credential can still open it. Make sure the box is removed, ask the listing agent to confirm that it has been deactivated, and rekey so that the key inside no longer matters.
Who may authorize the rekey
The person who asks for a rekey must have a right to do so. For a home you own and occupy, that is you, and you can show photo identification and something that ties you to the address, such as a utility bill, a deed or a property tax record. A locksmith cannot rely on a statement alone.
If the home is sold, authority passes to the buyer at closing. A buyer who has taken ownership can rekey immediately. A seller who has closed the sale no longer has authority to change locks on that property, even if they still hold a key. Do not ask for a rekey on a property you no longer own.
If you are an agent, property manager or investor acting for an owner, expect to be asked for written authorization from the owner, a management agreement or a listing agreement. Authority is checked before work begins. See the guide on who can request a lockout service for how the same principle works in related situations.
If the property is in an estate, trust or dispute, a technician will usually want documentation of who has authority. That may delay the visit, which is better than rekeying for someone who is not allowed to ask.
Timing: before closing, at closing and after
The best time to rekey depends on your role. If you are the seller and have already moved out, but the sale has not closed, you remain the owner and can arrange a rekey if the contract does not prevent it. Check your purchase agreement and coordinate with the buyer, since a change of locks before closing might interfere with their inspections or walkthroughs.
If you are the buyer, many people prefer to rekey on the day of closing or shortly afterward. Previous owners, their agents, contractors and anyone who had a key during the listing may still hold a copy. Rekeying removes that uncertainty, and doing so before you move belongings in means you do not have to worry about whether someone else can walk in.
If your listing ended without a sale and you continue living in the home, you can rekey whenever you wish. Many owners do it right after removing the lockbox, so the end of the listing marks a clear end to the open-access period.
For homes sitting vacant between a sale and a move-in, the risk of unwanted entry is higher because no one is present to notice. See move-in day lockouts for related planning, and consider securing the home before any belongings arrive.
Ending access beyond the front door
A listing often involves more than one door and more than one access method. The lockbox may have held the front door key, but other entrances such as a garage entry, a side door, a sliding door, a gate or a pool enclosure might have keys that agents or contractors used too. A smart lock or keypad may have been given a temporary number for showings. A community gate may have registered the agent's vehicle.
Walk through the property and list every point of entry that a visitor could have used. For each, note the type of lock and whether you know who has keys. Remove any temporary electronic entries from the lock's user list, and ask the community or gate system to delete guest registrations.
In condos and gated communities, a listing may also involve front-desk or gate access lists. Ask the management office to clear them and tell you how your credentials are managed. The page on lockouts in gated communities explains why those access lists matter and who controls them.
Do not forget non-door items such as the garage opener, a mailbox key, an alarm number or a shed or storage lock. Each one can quietly stay with someone who no longer needs it.
What a rekey accomplishes and what to ask about
A rekey changes the internal pinning of an existing cylinder so previous keys no longer work. The lock hardware and the look of the door remain unchanged. For many homes in Broward and Palm Beach County, where doors and hardware are exposed to humidity and salt air, it is a practical choice if the locks work smoothly and are in decent shape.
If the locks are old, corroded, loose or of a very basic grade, replacement may serve you better. Ask the technician to compare the options after looking at the hardware. The article on rekey versus replace locks explains the difference. If your house has several exterior doors, ask whether they can all be keyed to one key so you carry one instead of several, which is covered at rekeying all doors to the same key.
Ask about how many keys you will receive and whether the key blanks are restricted so that copies need authorization. Ask about the service call charge and how the quote is given. Quotes are given by phone only, and anything beyond a straightforward cylinder rekey needs an on-site visit.
Real-world scenarios
Consider a homeowner in Wellington whose house was listed for two months and then taken off the market. They collected the lockbox but never asked who had used the key. A rekey right after removing the box ended that open question for a modest effort and left them with a new set.
Consider a buyer in Delray Beach who closed on a home the previous owner had rented out for years. The sellers handed over a ring of keys, but nobody could say how many copies existed. Rekeying on closing day turned that uncertainty into a single known set.
Consider an investor in Pompano Beach who hired a property manager to show a vacant unit. The manager used a lockbox with a shared combination, and by the time the unit was leased, contractors, cleaners and prospective tenants had all been inside. Rekeying before the new tenant moved in gave the tenant a lock only they and the landlord could open.
Each of these situations turns on a simple principle: when access has been broad, close it deliberately. Your situation will differ, but the questions are the same. Who has been inside? Who could have copied a key? What would it take to end that doubt?
A short checklist for owners closing out a listing
Closing out a listing is easier when the steps are written down. The list below puts the access questions in a sensible order, so that nothing is left active by accident when the last showing is over. It works for a house, a condo or a small investment property, and you can adapt it to your own situation.
Do not rush. If you are juggling closing paperwork, a move and utility transfers, the lock work can feel like one more chore, but it is also one of the few items that directly decides who can walk into the home. A calm hour spent on it is worth more than a week of wondering.
- Ask the listing agent to confirm in writing that the lockbox has been removed and its access credentials deactivated.
- Collect every key you know about: front door, secondary doors, garage entry, sliding door, gate, shed and mailbox.
- List every electronic entry: keypad numbers, smart lock users, garage openers, community gate registrations and alarm numbers.
- Decide which doors carry the most risk and should be rekeyed first, usually exterior doors and any door to a garage or storage area.
- Confirm your authority to order the work and gather a photo ID and a document tied to the address.
- Call, describe the doors and hardware, and ask how the quote and service call charge work.
- After the work, test every key, count the set, record who holds each key and remove old electronic users.
What to have ready and how the visit goes
Gather your photo ID and something that shows your right to the property: a closing statement, deed, property tax record or utility bill. If you are an agent or manager, have the written authorization from the owner. Know how many doors you want rekeyed and whether any have unusual hardware such as a smart lock or a restricted key.
The technician will confirm who you are, check the doors and the existing hardware and explain what the work will involve. If any lock is damaged or worn, you will be told, with the choice of repair, replacement or rekey explained in plain terms. Before anything is done, you should hear how the service call charge works and what the likely scope is.
Afterward, test each new key in every lock you had rekeyed. Keep the receipt, count your keys and write down who holds each one. If you plan to keep a spare with a trusted person, record that too. For ideas on ongoing key tracking, see key control for landlords, which applies equally well to owners of vacant or investment properties.
Finally, remove any lockbox, signs or temporary access numbers so no stray route remains. When you are ready, call, describe the home and the listing history and ask how the process works for your doors.
Questions people ask
Do I need to rekey after the lockbox comes off?
Not legally, but it is a sensible step. During a listing, many people handle the key, and you cannot confirm whether copies were made. Rekeying makes any previous key useless and gives you a known set. Whether to do it depends on your comfort level, the condition of your locks and whether the home sits vacant afterward.
Can I rekey a home I just sold?
No. After closing, the buyer owns the property, and only they or someone they authorize may change the locks. Before closing, you may still have the right, but check your contract and coordinate with the buyer so you do not interfere with inspections or a final walkthrough. A locksmith will ask for proof of authority either way.
What if the lockbox still has a working key inside?
Remove the box and do not leave a working key inside it. Anyone who knows the combination or holds a credential could still open it. Ask the listing agent to confirm that access has been deactivated. A rekey also makes the key in the box useless, which closes the gap even if the box was not properly cleared.
Does a rekey cover smart lock numbers and gate access?
No. Rekeying only changes the key-operated cylinder. Temporary numbers on a keypad or smart lock, app access, garage openers, community gate registrations and alarm numbers must be removed through their own systems. Walk the property and list each access method so none stays active by accident after the listing ends.
How do I get a quote?
Quotes are given only by phone. For a straightforward rekey of a few standard cylinders, a dispatcher can usually describe how the work is priced. More involved jobs, such as many doors, restricted keyways or damaged hardware, need an on-site look first. There is a service call charge, and it is explained on the call before a technician is sent.
What should I bring to prove I can authorize the work?
Bring photo identification and a document tied to the address, such as a closing statement, deed, tax record or recent utility bill. If you act for an owner, have written authorization or a management or listing agreement. The technician needs to confirm that the person requesting the rekey has the right to do so before starting.
Describe the situation by phone and we will tell you what the job involves. Quotes are given by phone. Jobs that cannot be quoted without seeing them need a technician on site, and the service call charge is explained on the phone before anyone is dispatched.