Granite Lock Co., Inc.

$$ • Locksmith, Security Systems

755 Southern Artery #3A, Quincy, MA 02169

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.

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Reviews for Granite Lock Co., Inc.

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  • Sep 2025

    Very responsive, fast reliable work! I called up to have 6 cylinders re-keyed and in under 48 hours the work was done!

    Really great experience working with Zack, I will be going back to Granite for all future needs.

  • Jun 2025

    I have a very old house, built in 1910. I called Granite Lock with an issue with the front door. I thought I might have to get a deadbolt and drill into the woodwork of the door. Granite lock sent out their technician, Zack, within a day. Zack was extremely knowledgeable and explained the necessary repair. Also … he didn’t just push me to the most expensive option as he said the old lock was good and solid and just needed some repair in the mechanism. He was quick and thorough and did an excellent job!! I will always choose Granite Lock. They are reliable and trustworthy.

  • Jun 2025

    Had an excellent experience.. I have a weird door. It was difficult to find a standard fit. He took extra time and Care finding something that would work. The installation was professional clean and timely. Most importantly it was a solution that didn't break the bank. Quality locks aren't cheap and neither is skilled labor. I would definitely recommend Granite Lock!

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

Tips

 on-site services accepts credit cards

Location

755 Southern Artery #3A, Quincy

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