Apartment turnover lock changes for landlords and managers

Why locks change between tenants

A key does not stop working when a lease ends. Every copy a former tenant made, every spare handed to a friend, and every key left with a cleaner or relative still opens the door. You cannot know how many copies exist, and a tenant who has moved out has no reason to account for them. Changing the lock is the only dependable way to cut those keys off.

For the incoming resident, the change is also a matter of trust. Someone who signs a lease and pays a deposit expects that nobody else holds a key to their home. Property managers who rekey at every turnover can say so plainly, and that clarity is part of running a responsible building.

Turnover is also the natural moment to catch worn hardware. With the unit empty, a technician can inspect each lock without interrupting anyone. A loose handle, a sticky latch or a damaged strike plate is easier to fix now than after the next tenant has settled in. This is the same logic behind a moving into a new home lock checklist, applied across a whole portfolio.

Rekey or replace at turnover

Most turnover jobs are rekeys. In a pin tumbler cylinder, the key lifts a set of pins to the exact height that lets the cylinder turn. Rekeying changes those pins so the old key no longer lifts them correctly, and a new key does. The lock body, the handle and the bolt stay in place, which makes rekeying a sensible fit for units where the hardware is still sound.

Replacement makes sense when the hardware itself is the problem: a bent latch, a loose or cracked lever, a deadbolt that sticks, or a finish that has corroded in damp conditions. It can also make sense when you want to standardize every unit on one brand or one grade. The comparison page on rekeying versus a new lock set lays out the trade offs.

A good approach is to decide by inspection, not habit. Ask the technician to check each lock while rekeying. If one cylinder is worn or one deadbolt is below the standard you want, replace only that piece. This keeps costs under control while letting the building steadily improve. The price is explained before work starts either way, so you can approve a rekey for every door and a replacement only where needed.

Which locks to include on a unit

A unit usually has more than one lock, and a turnover that misses one leaves a gap. The front door deadbolt and knob or lever are the obvious ones. Add any secondary entry, such as a balcony or patio slider, a service door, a garage side door, and any storage closet that comes with the unit.

Do not forget the shared items that belong to the unit. Mailbox keys are a classic oversight, because a former tenant who holds a mailbox key can still collect mail. Many buildings use cluster boxes controlled by the postal service, so the process may differ, and you should ask the proper contact about it. Our page on mailbox and cluster box locks covers what a locksmith can and cannot do there.

Sliding doors deserve a careful look too. The latch that keeps the door shut is often a simple hook, and extra security bars or pins may have been added by a previous tenant. Confirm that everything works and nothing is missing. See sliding door and patio lock service for more.

• Front door deadbolt and the knob or lever set.
• Balcony, patio or slider locks and any added security pins.
• Secondary or service doors and garage side entries.
• Storage closets, utility rooms and bike cages assigned to the unit.
• Mailbox keys, where the building controls them.

Key counts, labeling and handing over

Decide before the first unit how many keys each resident receives. Two or three is common, plus a set for management. Fewer keys means fewer chances for copies, but you also want enough so a tenant is not tempted to cut spares at a hardware counter. State the number in your lease or move in paperwork so expectations are clear.

Label keys sensibly. Tags that include the unit address are risky if a key is lost, because anyone who finds it knows where to use it. Use a code or number that only your office can match to a unit. When keys are handed over, have the tenant sign for them, and photograph or record the handover. This takes a minute and prevents disputes later.

Cutting keys to a clear standard helps, too. Keys cut from a well kept code are more precise than copies of copies, and they wear less on the lock. If you use restricted key blanks, only authorized sources can duplicate them, which reduces unauthorized copies. For background, read key blanks and key codes.

Building a turnover record that helps you

A lock log sounds boring until it saves an afternoon. Record the unit, the date, which locks were rekeyed or replaced, how many keys were cut, who received them, and any hardware problems noticed. A spreadsheet works perfectly well. Over a few turnovers it becomes a map of your building: which doors fail often, which units have older cylinders, and when something was last touched.

Store the log securely and limit access to people who need it. Notes about key codes and key systems are sensitive information. Do not store codes in a place that everyone on staff can open, and do not email them casually. If a technician provides paperwork, keep it with the unit file.

The log also helps if there is ever a question about who had access. If a tenant reports an issue, you can show when the locks were last changed and how many keys were issued. That does not solve every dispute, but it moves the conversation from guesses to facts. For wider policy ideas, our business key control policy guide is a useful reference.

Master keyed buildings and shared systems

Many apartment buildings use a master key system. A master key opens every lock in a defined group, while each tenant key opens only its own door. This makes life easier for maintenance and emergencies, but it adds a layer of care at turnover. When you rekey one unit, the master key relationship must be preserved, or your staff will be locked out of that door.

A technician who works with master key systems will keep track of the system's structure, which is a plan of how keys relate to locks. Rekeying within the system keeps the master working while changing the tenant key. Ask who holds the master records, since losing them can make future changes harder. Our page on master key systems explains how these plans work.

If your building is not master keyed, you may still want a management key for emergencies. A keyed alike approach for certain doors, such as common storage closets, is another option. The comparison of master key versus keyed alike helps you pick. If your community has an association, ask them whether they hold records or have requirements about who may hold a key.

Planning turnovers around your calendar

Turnover is a scheduling puzzle. The old tenant leaves, cleaning and repairs happen, and the new tenant expects to move in on a set date. Lock work slots neatly into the gap, ideally after the unit is empty and before the new resident arrives. When several units turn over in the same week, group them into a single visit so the technician can move from door to door.

Give the technician a clear list ahead of time: addresses, unit numbers, what each door needs, and how to get access. If you use a lockbox or building key for the unit, say so. Unclear access instructions are the most common reason a visit takes longer than it should, and they are easy to fix with a short message before the day.

Also plan for the unexpected. A tenant might leave a key behind, a unit might have been left locked from the inside, or a lock might turn out to be damaged. If a former tenant cannot be reached and a door will not open, call and explain the situation. A technician can often help with a lockout, and our residential lockouts page describes the process.

Emergency changes versus planned turnovers

Not every lock change happens on a calm schedule. Sometimes a tenant is evicted, a relationship ends badly, or keys go missing, and the lock needs to change right away. These are the situations where planning pays off, because a manager who already has a relationship with a locksmith can explain the situation in a short call.

A planned turnover and an emergency change involve the same skill but a different pace. Our comparison of emergency visits and scheduled lock work explains how the two differ, including why planned work gives you more room to inspect hardware and choose options. When an emergency happens, be ready to show that you have the authority to change the lock, such as proof of ownership or management.

Whatever the circumstance, local rules about tenant access, notice and entry apply, and they vary. Check your lease, your association rules and local requirements before changing locks on an occupied unit, and ask the appropriate authority or attorney if you are unsure. A locksmith can do the work, but the decision about when it is allowed belongs to you.

What happens during a turnover visit

The visit begins at the front door. The technician confirms the unit, checks that the previous tenant is out, and looks at each lock before touching anything. Loose screws, a sagging handle, a deadbolt that does not extend fully and a latch that drags on the strike plate are all noted. You are told what was found, and the price for any extra work is explained before it begins.

Next comes the rekeying itself. Each cylinder is removed, its pins are changed to match the new key, and it is put back and tested. The new key is tried several times in each lock, with the door open and then closed, because a lock that works on the bench can behave differently once the door presses against the latch. If your property uses one key for several locks on the same unit, they are all set to that key.

Before the visit closes, the work is checked with you or your representative. You see the keys, count them, and try them in the doors. Any old keys that you hold should be set aside and marked as void, so nobody mistakes them for working keys later. A short written list of what was done goes into your lock log, and then the unit is ready for cleaning and the next resident.

Tenants, privacy and local rules

Lock changes touch on legal ground, and the rules differ depending on the lease, the building and local requirements. In some situations a tenant is allowed to ask for a lock change, in others the landlord must provide notice before entering. Do not rely on a locksmith to decide this for you. Ask your attorney, your association or the relevant local office what applies to your situation.

Be especially careful with occupied units. A lock change on a home where someone lives is a serious step, and the person asking must be able to show authority. A locksmith will usually ask for identification and proof that you own or manage the property before working on a door. This protects residents as much as it protects the locksmith.

Communicate with tenants clearly. If you are changing locks at the end of a lease, tell outgoing tenants when to return keys and what will happen after. If you are changing locks as a courtesy for a new resident, say so in the welcome notice. Clear, calm communication prevents most of the conflicts that arise around locks.

Remember that a lock is only one part of a door. Frames, strike plates and hinges matter as much as the cylinder, and a very good lock on a weak frame does not protect much. Our guide to door frame and strike plate security shows what to look for while the unit is empty, and it is easy to include in the same visit.

Common mistakes managers can avoid

The first mistake is skipping the rekey because a unit looks clean and the previous tenant seemed trustworthy. You cannot see copies. The second is rekeying only the front door and leaving the slider, closet or mailbox untouched. A thorough job takes a bit longer and leaves nothing behind.

The third mistake is poor key hygiene afterward. Keys left in an unlocked office drawer, labeled with unit numbers, defeat the point of the change. Store management keys in a locked cabinet, track who signs them out, and return them. The fourth mistake is ignoring warning signs, such as a lock that is hard to turn. That could be dirt, wear or humidity, and a dry cylinder is more likely to fail at a bad moment.

Think about shared spaces as well. Entry gates, package rooms and common doors affect every resident, and a former tenant who still knows a gate code or holds a gate key makes the unit lock matter less. Look at common area access whenever you finish a large wave of turnovers. Lastly, avoid mixing hardware randomly. A building full of different brands, grades and key types is harder to maintain. Consider choosing a standard and moving toward it as you replace parts. The page on understanding lock grades explains how to compare hardware, and locksmith work for property managers shows how a regular relationship can simplify all of this.