Call 617-472-2177

for immediate assistance


- Residential

- Commercial

- Automotive

- Safes

  • Facebook Social Icon
  • Twitter Social Icon
  • Google+ Social Icon
  • YouTube Social  Icon
  • Pinterest Social Icon
  • Instagram Social Icon

© 2019 by Granite Lock Co., Inc. 

755 Southern Artery, Rte, 3A

Quincy, MA 02169


Commercial locking hardware is our specialty. We provide professional locksmith services to many businesses and institutions. If a master key system with restricted keyway cylinders is needed, we will provide them. We service and install what we sell. See below a list of what we have available. If we don't stock a particular item, we will special order it for you.

Our Commercial Services Include

  • Access Control (card access systems)

  • Electric Strikes

  • Handicap Door Openers

  • Exit Hardware

  • Pushbutton Mechanical and Electronic Hardware

  • Door Closers

  • Removable Core Systems

  • Commercial Mailboxes

  • Master Key Systems

  • High Security Restricted Key Systems

  • Aluminum Storefront Hardware

  • Lever Handle Hardware

  • Americans with Disabilities Act Compliant Hardware

  • In-Shop Services for Building Maintenance Personnel

  • Rekeying

  • Repairing

  • Key Duplication

  • Keys Cut by Code (desks, cabinets)