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
Keying Options & Lock Customization
Take total control of your security products with keying & custom services. With various body sizes, shackle and keying options, these locks are tailored to your needs.
Learn MoreCustom Marking
Master Lock offers laser engraving for complete customization. Consider engraving your company name and logo.
Laser Engraving Forms
Product Support
Set-your-own combination instructions, combination reset, lost combination help
Replace keys, replace locks, key duplication
Lock maintenance, warranty information, part replacements
Combination charts, lock service, lock replacements
Bluetooth locks & lock boxes, padlock service
Adding & removing users, app support, lock settings
Replacement parts, commercial door lock service, residential hardware support
