Service & Support
Master Lock offers the best in customer service and provides extensive product support. No matter your issue, we're here to help you solve it.
Top Support Videos
Product Support
Reset & Retrieve Lost Combinations
Set-your-own combination instructions, combination reset, lost combination help
Lost Keys & Key Replacements
Replace keys, replace locks, key duplication
Product Maintenance & Replacements
Lock maintenance, warranty information, part replacements
School Locker Locks
Combination charts, lock service, lock replacements
Bluetooth & Electronic Lock Support
Bluetooth locks & lock boxes, padlock service
Vault Support
Adding & removing users, app support, lock settings
Door Locks & Hardware
Replacement parts, commercial door lock service, residential hardware support
cLOTO Support
Do you need cLOTO support?
Safes Support
Batteries, warranty information, lost key or combination help
