Sep 2026
We had an issue with our office locks, Zack from Granite Lock was there the next morning, very friendly and got the job done quick! Would highly recommend and definitely will use again in the future!!
About Granite Lock Co., Inc.
Granite Lock Co., Inc. is a family-owned locksmith operation that has been serving the Greater Boston area for 40 years. They provide "rock solid security" with expert key duplication, lock repairs, rekeying, and standard replacement, as well as top-quality decorative hardware. The team offers quick, honest, and thorough service, making customers feel comfortable and secure. Customers have noted the professionalism of the staff, who take the time to explain their work and provide tutorials on new lock systems. Granite Lock is highly rated, trustworthy, and reliable for residential and commercial needs, big or small. Customers have praised the company's responsiveness, fast and reliable work, and the technician Zack's knowledgeability and honesty in recommending the most suitable and cost-effective solution.
Reviews
Aug 2026
We have used this family business for yrs. Starting From Dick that started the business and then his son took over . They are very knowledgeable and fare. I will use them anytime I can A+++
Jul 2026
These guys are amazing! I bought a used truck and the key would not open the door lock. I thought the problem was with the cylinder in the lock. I visited Granite lock and the guy with the long beard (sorry didn't get your name) diagnosed the problem as a worn out key. He was able to reverse engineer the key and find the originals serial number. From there he cut a key that opened the door just like it was new. But wait there is more. This truck has keys with transponders in them to make starting the truck more secure. I had 2 old keys so he broke them open extracted the transponder chip, cut 2 more keys and and housed the old transponders in the new keys. They… read full review
Photos
Hours
Monday 8AM - 4:30PM
Tuesday 8AM - 4:30PM
Wednesday 8AM - 4:30PM
Thursday 8AM - 4:30PM
Friday 8AM - 4:30PM
Saturday 9AM - 12PM
Sunday Closed
Good to know
- on-site services
- accepts credit cards
Location
755 Southern Artery Suite 3A, Quincy, MA 02169
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