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Emergency service during business hours
will be handled promptly.
Call 617-472-2177
to schedule an appointment during business hours.

We have the capability of cutting high security automotive keys on site or at our shop location.

We specialize in complete security solutions to protect you, your family, and your home.

We offer a complete and comprehensive array of security solutions for all types of businesses, both small and large.


Massachusetts Locksmiths Association # 460
Associated Locksmiths of America # 43061
Safe & Vault Technicians Association # SR12270
Massachusetts Systems Contractor License # 7025
Massachusetts Systems Technicians License # 28D
Massachusetts Department of Public Safety License # 951

SINCE 1981

Located in Quincy, MA, Granite Lock has been serving the Greater Boston area and surrounding communities for over 40 years. We are a family-owned bonded and insured full-service locksmith operation providing "rock solid security" to our customers. We have invested in state of the art automobile key programming and computer run key machines in order to stay on top of the rapidly changing technology. We offer expert key duplication, lock repairs, lock rekeying, as well as standard replacement and top quality decorative hardware. We install everything that we sell. We also sell, service and repair burglary and fire safes. Residential or commercial, big or small, Granite Lock does it all!

Our showroom has display mounts as well as safety and security related products along with a large selection of keys for auto, home and business. Our staff will be happy to take the time to answer your questions, giving you individualized attention and service.

Our success at Granite Lock results directly from the trust that our satisfied customers have placed in us to solve their security problems. We look forward to doing business with you.


We use Angie's List to assess whether we're doing a good job keeping valued customers like you happy. Reviews are appreciated. Click on the Angie's List logo to write a review.

Thank you

Phony and Copy Cat Locksmith Scams
Are Taking Place Locally !!!

This has been posted to you to inform you of a serious situation that is taking place in the locksmith industry. Currently there are certain individuals who are placing hundreds of thousands of phone numbers with fake business addresses in the local yellow page books across the country to make customers think that they are legitimate local locksmiths. There have been thousands of victims across the country that have fallen for these scams. You need to protect yourself! The phony locksmith phone numbers ring back to deceptive boiler rooms in which customers are quoted very low prices. Then, they are deceived with bills much higher than their original quotes and in some cases, 10 to 15 times higher! In addition to the deceptive phone numbers, there are also copy cat locksmiths who are running ads using similar names of established locksmiths, hoping customers will think they are calling the real locksmith. You must be very careful that you are working with the original locksmith and check to see that the locksmith working with you has the appropriate credentials. You can protect yourself by working with a legal locksmith, such as the one who provided you with this information.


Monday - Friday: 8 am - 4:30 pm

Saturday: 9 am - 12 pm

CLOSED MAY 25-27 and JULY 4-7

Keys, Locks, Padlocks, Deadbolts, Knobsets, Locksets, Handicap Hardware, Exit Devices, Panic Hardware, Transponder Keys, Chip Keys, Cloning , Shell Keys, Door Closers, Electric Strikes, Handicap Door Openers, Access Control, Card Access, Lockouts, Ignitions, Decorative Hardware, Emtek, Schlage, Arrow, Master, Don-Jo, Baldwin, PDQ, Alarm Lock, Kaba Ilco, Yale, Sargent, Von Duprin, Monarch, Falcon, Adams Rite, Gardall, Amsec, Lost Key Replacement, Break-in Repairs, Lock Repair, Night Latches, Jimmy Proof Locks, Auto, Home, Office, Rekeying

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