Secure and Replace Apartment Mailbox Keys and Locks

Prevent unauthorized mail access and avoid USPS lockout fees by acting promptly

Difficulty: Easy-ModerateTime Needed: 30–60 minutesRecommended Season: Any

Avoid $50–$200 in lock and key fees and losses from stolen or undelivered mail.

Tags:mail securitykey replacementusps processapartment livingtheft risk

Check lease and move-in documents to clarify mailbox key replacement responsibilities.
Test all mailbox keys at move-in to confirm they work and fit your assigned box.
Photograph your mailbox and lock to document their original condition.
Contact property management if a key is lost to see if a master or spare is available.
Request a written estimate for lock replacement to avoid unexpected charges.
Submit USPS Form 1094 for a lock change if management cannot help; fees may apply.
Verify your identity and lease before requesting changes to prevent unauthorized access.
Obtain a receipt or written confirmation after lock service to document the change.
Inspect the new lock and keys for proper operation; report any issues immediately.
Store spare mailbox keys securely to avoid future lockouts or replacement costs.
Notify your post office if you suspect tampering or theft for prompt USPS investigation.
Update USPS and your contacts with your new address if you move within the complex.

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USPS must perform lock changes on federally controlled mailboxes—managers cannot.
Quick reporting of lost keys or faults reduces theft risk and protects important mail.

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