Lock Security Checklist for Landlords Between Tenants

A turnover is the one time you can reset control of every key and access code without disrupting a resident. This lock security checklist for landlords between tenants helps you handle that work in the right order, whether you manage a Waikiki condo, a single-wall home in Kailua, or several units in Kapolei.

Do not assume keys were returned just because the lease has ended. A former resident may have made copies, shared a key with family, or left a code active on a smart lock. Rekeying and a careful hardware inspection give the next tenant a clean start while helping you catch worn locks before move-in day.

Wait until you have lawful possession of the unit under your lease and applicable requirements. Then collect every item connected to entry: unit keys, mailbox keys, parking remotes, building fobs, garage remotes if applicable, storage keys, and keys for common utility areas.

Make a simple record as you collect them. Note how many keys and remotes were issued, how many came back, and which ones are missing. That record helps you decide whether rekeying is enough or whether a device needs replacement. It also keeps the handoff organized when several people help manage the property.

For a condo or high-rise, separate what you control from what the building controls. Unit entry locks are often the landlord's responsibility, while lobby fobs, elevator credentials, mailbox locks, and parking access may be handled by the association or building management. Ask about their turnover procedure early, especially in busy buildings in Kakaako and Ala Moana where office approval can affect your schedule.

Rekeying changes the working key inside an existing lock cylinder. The cylinder is the part of the lock that reads the key. In a common pin-tumbler lock, small internal pins are reset to work with a new key, so old keys no longer operate the lock.

For most standard rental doors, rekeying is the practical first step between tenants when the lock body is sound. Rekey the front door, rear or side entry, connecting doors, and any lock that gives access to a private lanai or enclosed yard. Do not forget storage rooms, detached laundry spaces, and shared gates when those are part of the rental.

A rekey is not always the answer. Replace the lock if the cylinder is damaged, the key turns roughly, the latch does not fully catch, the deadbolt is loose, or the hardware is the wrong type for the door. If you are moving from ordinary keys to a restricted-key system, a higher-security lock, or keyless entry, that is also a replacement or upgrade decision rather than a simple rekey.

Avoid using one identical key for every unit you own unless there is a carefully planned master key system. A master key system lets a manager key open several doors while each tenant key opens only that tenant's unit. It can reduce a heavy key ring, but it needs accurate records and thoughtful design. Adding keys without a plan can create unintended access.

A new key will not fix a door that is out of alignment. Open and close each exterior door several times. The latch should enter the strike plate cleanly, and the deadbolt should extend fully without having to lift, pull, or force the door.

Check that screws in the strike plate and hinges are secure and that the deadbolt throw reaches solid framing, not only thin trim. Look for a loose knob, a bent latch, cracks around the strike plate, or a door that rubs the frame. These are maintenance issues that can leave a resident struggling at the door even when the lock itself is new.

Oahu humidity and salt air can be hard on exterior hardware. This is especially common near Waikiki, Hawaii Kai, Ewa Beach, and other coastal areas. Look for corrosion on lock faces, hinges, screws, and the deadbolt bolt. Light surface corrosion may be manageable, but heavy corrosion, sticking operation, or pitted metal can mean replacement is the more sensible choice.

Test window and lanai locks as part of the same walk-through. A ground-floor window, sliding door, or accessible lanai door needs hardware that closes and locks as intended. If a sliding door lock feels loose or the door can be lifted or shifted out of position, have it assessed before the next tenant moves in.

Smart locks and keyless entry can simplify turnover, but only if you remove old access before issuing new access. Delete former tenant codes, temporary guest codes, contractor codes, and any app-based permissions tied to the lock. Then create new codes for the incoming tenant and any authorized manager.

Do not reuse predictable codes such as unit numbers, move-in dates, or the same four digits across multiple rentals. Keep an access record that identifies the code holder and the date it was created or removed. If your system has an activity log, review it only as needed for property management and follow your own privacy practices.

Also check the mechanical override key. Many smart locks still have a physical key cylinder for backup. That key should be rekeyed or replaced during turnover, or an old physical key may still open a door whose code was changed.

Battery condition matters, too. Replace weak batteries according to the lock manufacturer's instructions and make sure the incoming tenant knows how to recognize a low-battery warning. In a condo, confirm that the lock model and finish meet any HOA requirements before installing it. Some associations limit exterior hardware changes or require specific fire-rated door hardware.

Once the locks are rekeyed, count the new keys before anyone moves in. Give only the number stated in the lease, and keep management copies in a secure, documented location. Label keys by an internal code rather than the complete unit address when possible.

Do not leave a spare under a mat, in a lockbox that remains on site, or with a nearby vacant unit. If you use a lockbox for showings or contractors, change its combination at turnover and remove it when its purpose is finished. A lockbox is a temporary access tool, not a substitute for key control.

For larger properties, document the new keying in a key schedule. Record which key operates each door, who holds management copies, and whether any master key works at that location. Keep that schedule separate from keys themselves. It makes future rekeys, repairs, and staff changes much easier to manage.

The best order is usually possession, lock and door inspection, rekeying or hardware replacement, cleaning, repairs, and final move-in testing. Doing lock work early prevents cleaners, painters, vendors, or prospective tenants from using the new tenant's keys before move-in.

Before you hand over the unit, test each new key at the actual door. Test the deadbolt with the door open and closed, confirm electronic codes work, and verify that required egress hardware allows someone to leave without a key. For a rental with multiple entries, walk the property as a new tenant would, including parking, storage, and common access points.

Call a locksmith when keys are missing, locks have been damaged, hardware is corroded or binding, or you want to change how access is managed across several units. A professional can rekey compatible locks, repair or replace worn hardware, set up a planned master key system, and help assess smart-lock options for your door type.

For landlords and property managers across Oahu, Kama'aina Locksmith is bonded and insured and open 24 hours a day, 7 days a week. Call (808) 202-3257 to discuss your turnover needs. We give you an arrival window when you call, and the full price is quoted on the phone before dispatch. A careful lock reset before the next move-in gives both you and your new tenant a clearer, calmer start.

Need help now? Kama'aina Locksmith is bonded and insured, open 24 hours a day, 7 days a week, and quotes the full price by phone before a technician is dispatched. Call (808) 202-3257 and we will give you an arrival window for anywhere on Oahu.