Lock Audit Checklist for Landlords

What an audit is and why owners skip it

Most landlords only think about locks when something goes wrong: a tenant moves out, a key goes missing, a door will not latch. An audit turns that reactive habit into a routine. You look at every lock on purpose, on a schedule, and you write down what you see.

The reason owners skip it is simple. Nothing seems broken, and the work feels like paperwork. Yet the problems an audit finds are exactly the ones that grow quietly: a loose strike plate, a worn key that barely turns, a unit where nobody can say how many copies exist. Each is a small cost today and a large one after a break in or a dispute.

This page is a general checklist, not legal advice. Rules about rental entry, notice, lock changes and tenant rights vary by place, and your lease and local authorities decide what you may do and when. Ask your attorney, property manager or housing office whenever you are unsure.

Think of an audit as a conversation with your own property. Each door has been used hundreds of times by people you may never meet, and its condition tells you how it has been treated. Reading those signs is a skill that improves with practice, and the first audit is always the slowest. By the second year you will notice problems from the doorway before you touch anything.

Set a modest goal for the first round. You are not trying to fix everything on the spot. You are building a picture of what exists, what is sound, and what needs a decision, so that your spending goes where it matters most.

Before you start: gather your records

Bring a list of every unit and every door in it, including side doors, patio doors, storage rooms, mailboxes and shared gates. If you have no such list, building one is the first useful output of the audit. Number the doors so that findings can be matched to a place.

Collect what you already know about keys. Who has received keys for each unit, how many copies were cut, and when the locks were last changed. If the answer is a shrug, write that down too, because an unknown is a finding. It may be the most important one on the list.

Plan the visit with proper notice. Do not enter a tenant's home on your own schedule. Many owners combine the audit with a scheduled inspection or maintenance visit, as the lease allows. For vacant units, an audit is easier and can cover every door at once.

A small kit helps. Bring a notebook or a phone for photographs, a tape measure, a flashlight, a screwdriver that fits the common screws, and a set of the keys you hold. A flashlight shows scratches around a keyway, soft wood in a frame and moisture stains that daylight hides.

Decide how you will label findings. A simple code works well: green for sound, yellow for watch, red for act soon. Colors keep the final list short, and they let you hand the red items to a locksmith or handyman without rewriting your notes.

Exterior doors: the first line

Start with the doors that face the outside. Stand with the door closed and watch how the latch meets the frame. A latch that sits a little high or low, or a bolt that has to be shoved into its hole, means the door has shifted. Our guide on doors that will not latch explains the causes.

Then check the hardware. Look for lever handles that droop, thumb turns that rattle and finishes that have worn through. A lock that is merely tired can be rekeyed or serviced, while one with a damaged body should be replaced. The choice is laid out in lock replacement or rekeying.

Finally, test every key you hold for that door. A copy that fails is a worn key or a poor copy, and it will frustrate a tenant. See how worn keys affect locks for what to do about it.

Pay attention to sound and feel. A deadbolt that grinds, a latch that clicks twice or a key that catches halfway tells you about internal wear that no photograph will show. Try each lock several times, because intermittent faults often appear on the third or fourth turn rather than the first.

Open and close each door slowly, then at a normal pace. Slow movement reveals rubbing, and normal pace shows whether the latch catches without help. A door that must be pulled shut is a door that tenants will eventually leave unlatched.

• Does the door close and latch by itself without lifting or pushing?
• Does the deadbolt throw fully into the frame with the door closed?
• Are the strike plate screws tight, and do they bite into solid wood?
• Is the frame cracked, soft, or split near the latch?
• Does the key turn smoothly, or does it drag and need jiggling?
• Is the outside light, peephole or viewer working?

Frames, hinges and the parts nobody looks at

A lock cannot be stronger than the door it sits in. Landlords often replace a deadbolt and leave the frame untouched, even though the frame is the weaker part. Look at the wood around the strike for splits, softness from moisture or old repairs that have loosened.

Check the hinges as well. Hinge screws that are short or stripped let the door sag, and a sagging door puts pressure on the latch. Outward swinging doors should have hinges that cannot be easily removed from outside. The overview in hinge side security basics explains the idea.

In a humid climate, wood frames swell, paint builds up in strike openings and metal parts rust. Look at the bottom of the frame and the threshold for damp, and at the strike for paint buildup. Short screws are a classic fault; screw length and strike plate security covers the fix.

Look up as well as sideways. The top of the frame, where a header meets the jamb, is a place where water collects and wood softens. Press with a thumb or a screwdriver handle against any stain. If the wood gives, note it for repair before adding a new lock to it.

Where the frame is metal, check for rust at the bottom and for bent lips around the strike. Metal frames in humid places rust from the inside out, and a bit of paint can hide a larger problem than it appears.

Windows, sliders and secondary entries

Rental units are often entered not through the front door but through a patio slider, a bathroom window or a back door that is rarely used. Audit those with the same care. A sliding door that can be lifted off its track or has a worn latch is a common weak spot.

Check the secondary stops on sliders, such as a bar or pin, and make sure they are present and working. Our guides on sliding glass door lock basics describes the main options.

Look at windows that open at ground level. Latches that are painted shut or broken are worth noting, but do not alter window hardware that is required for escape. Fire and building rules apply to windows and to bedroom exits, and your local officials decide what is needed.

A few extra minutes on the door to a garage or storage room is worthwhile. These doors often have lighter hardware, because owners think of them as less important, and thieves know it. Treat them as entry points to the unit and compare their locks to the front door.

Also check that no door has been altered by a tenant in a way you did not approve. Added bolts, chains, or replaced locks are worth recording and discussing, because they may leave you without a key to a door you are responsible for.

Keys, copies and the key register

For each unit, create a key register. List every key by unit, door and number, who received it and when, and when it was returned. Add the key type, whether it is a standard brass key or a restricted one, and whether copies can be cut freely. Restricted keyways limit who can duplicate a key.

Count what you actually have. Spread the keys on a table and compare against the register. Gaps show where control has slipped. If the register says three keys exist and you hold two, that is not a disaster, but it is a reason to think about rekeying.

Mark and store spares safely. A box of keys labeled with unit numbers on the outside is a gift to a thief. Use a coded system that only you understand, and keep the cabinet locked. The ideas in the key handover checklist for managers apply directly.

Think about how keys are given to new tenants. A sealed envelope with the unit number written inside, delivered at move in with a signature, is a clear routine. It ensures that you know which keys went to whom on what day, and it makes the return at move out simple to verify.

If you manage with a team, decide who is allowed to cut copies and from which key. Authority to copy should be as clear as authority to hold a key, and a single person should approve every duplicate.

Common areas, gates, mailboxes and storage

Shared spaces are where audits turn up the most neglected hardware. Laundry rooms, trash rooms, pool gates, utility closets and mailbox banks often have locks that have not changed in a long time and keys held by many people.

Look at gate latches and closers. Pool and yard gates may be subject to rules about self closing and latching that vary by place, so ask your local authority what applies. Test each gate by letting it swing from partly open and watch whether it closes and catches. Humid air wears these parts harder than most owners expect.

For mailbox banks, see apartment complex mailbox lock basics. The postal service controls part of this hardware, so check with them before changing anything. Do not assume you can swap mailbox locks on your own.

Pool equipment rooms, electrical closets and trash areas sometimes hold hazards, so their locks matter for safety as well as security. A door that should be locked and is found open is a finding, whatever the lock looks like. Note who has access and whether a spare key hangs where anyone can reach it.

Consider lighting around common doors. A well lit entry discourages casual tampering and helps tenants feel comfortable. Lighting is not a lock, but it works alongside one.

Reading the results: repair, rekey or replace

After the walk, sort the findings into three piles. Items that only need adjustment or repair, such as a tightened strike or a short screw replaced with a longer one. Items that need rekeying, because key control is uncertain. Items that need replacement, because the hardware is damaged or unsafe.

Rekey whenever you cannot account for the keys. It is the cleanest way to restore control, because it cancels every key that was ever cut, known or not. For a vacant turnover, the process is described in rental property rekey planning and the rekeying service page.

Replace when the lock body fails, the finish has worn off, or the grade is too light for the job. Grades are explained in lock grades explained for homeowners. Do not replace simply because a lock looks old; an old lock that works well and has been rekeyed can be a sound choice.

Write a short note beside each decision. Why did you choose to rekey, why replace, why wait? Months later you will not remember, and the note spares you from reopening the same question. It also shows a manager or a lender that you made reasoned decisions.

Estimate the work in batches. Doors that need only adjustment can be handled in a single visit, while rekeying a whole building is better planned with a locksmith so that tenants are not disturbed twice.

Making the audit a habit

A single audit helps. A yearly one helps more. Many owners tie it to a calendar event, such as the start of hurricane season, when doors are checked anyway. Put the next date in the notebook before you close it.

Keep a short file for each unit with the date of the last audit, the last rekey, the number of keys issued and the main findings. When a tenant calls about a sticking lock, you will know what the door has been doing. A tidy file also helps if a dispute arises about who changed what.

Add a few habits between audits. Ask tenants to report doors that stick or locks that feel gritty, and show them the right kind of lubricant. A short note on gentle care is a good thing to share. A friendly note costs nothing and prevents many service calls.

When a break in occurs, the file is invaluable. It tells you whether the door was sound, how many keys existed and when the lock was last changed. That helps you decide on the next step, and it supports your conversations with tenants and insurers. See our overview of whether rekeying is enough after a break in for how to think about it.

Look over the plan after each hurricane season. Storms shift doors and swell frames. A short post storm walk with the audit sheet in hand catches problems before the next tenant reports them.

Working with a locksmith on an audit

A locksmith can walk the doors with you, test the hardware and explain which items are repairs and which need replacing. Before any opening or rekeying, ownership or authority is checked, and for rental property that means the owner or an authorized manager. When you call, describe the property, the number of units and what you hope to learn.

You hear the plan and the price before anything starts. If you want a large batch of doors rekeyed, ask how the work will be organized, which doors come first and how new keys will be handed out. At the end, the finished work is tested with you, and your register is updated.

For related reading, see move in lock changes and the guide to rental lock plans. A call is the easiest first step.

Ask questions during the visit. A locksmith who explains what is wrong, shows the worn part and describes the options in plain words is helping you understand your own property. If any explanation is unclear, ask again. You should leave knowing what each door needs.

Keep the notes from the visit with your audit file. They add detail that your own walk may have missed, and they give you a start for the following year.

Questions people ask