Granite Lock Co

Service truck on locationResidential  (Automotive, Commercial, Safes)

Mobile and Walk-In Service


If you need your locks rekeyed, Granite Lock can accommodate you at your home. We have vehicles equipped with lock repinning and repair equipment. We can cut keys with our vehicle mounted key machines. If new hardware is what you need, we can do standard replacement hardware such as Arrow and Schlage, or install decorative high quality replacements such as Emtek and Baldwin. If the finish color that you have is dated, we also specialize in updating your hardware and hinges to the popular satin nickel and oil rubbed bronze finishes. From deadbolt installations to door knockers, viewers and kick plates, we are just a call away. Do you have an older home? Many older homes have locks that are 80+ years old. When they fail, most times we can repair them or provide you with a suitable replacement. Granite Lock has specialized equipment for installing mortise locks. This equipment clamps to your door and utilizes a high speed router to prepare the door. If you have an old door or a new one, most times we can retrofit high quality mortise locks. We have a solution to your problem.

Interior of fully equipped service vehicle
Fully equipped service vehicle
for all of your on-site needs
Residential hardware display

Granite Lock Showroom

Did you just move into a new home?

Residential door lockGranite Lock can make all your locks work on one key! No more multiple keys for your house. One key works all.

Walk-in Service:

If you bring your locks to our shop, we can repair, rekey or match them for a replacement. Our showroom has many display mounts and catalogs available for your viewing.

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Granite Lock has the latest key duplication and origination equipment from simple single sided mechanical keys to sidewinder transponder keys. We have the capability of cutting high security automotive keys on site or at our shop location. We can program most transponder keys as well as state of the art key cloning. We are constantly updating software and equipment to keep up with the modern automotive demands. If you have a problem with your ignition or door lock, we do repairs such as repining or replacing of worn or broken locks. We provide in-shop service to many local body shops and dealerships on a daily basis . Modern locksmiths now use a laptop and a computer-operated key machine to make keys. Although our methods of cutting or originating keys has changed, we still also use a file and a pair of vise grips.

Antique van Repairing a door lock Thunderbolt lock New vehicle

transponder key coding

What is a transponder key?

Inside the head of your key is a transponder chip, and there is an antenna around the ignition. The antenna emits a radio frequency (RF) which activates the chip. If it is programmed, it allows the vehicle to start. If it is not programmed, it might crank the engine, then die or not crank at all. This is considered a passive anti-theft system.

Key cloning equipment

Key cloning

We have the equipment to clone most auto keys. The cloner reads the electric signature of your key and writes it onto a new key.

Common automotive lock issues:

We can repair or replace your ignition quicker and at a lower cost than the dealer. In most cases, we use a better than original factory part. The ignition that the dealer uses most times is the same problem-causing type ignition. We have a better, lower cost solution.

GM lockOlder GM Vehicles: If your key looks like this one, these equipped vehicles have issues. If you insert the key, turn it to start and it doesn't, is your security light flashing? There are fine thin wires that are part of your anti-theft system that are attached to the ignition switch. Most times from age and use these break creating a "no start" issue. Granite Lock can remedy this problem at your vehicle location. No towing to a dealer and repaired at a reasonable cost.

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Chrysler Dodge Jeep locks

Chrysler Dodge Jeep:

"Key will not turn." The ignition that we use is far superior to the factory one and will not have the same issues.

Ford lock

Ford Focus:

"Key will not turn." A very common problem on the early Ford Focus. We supply and set up an ignition cylinder that will not fail like the original one.

Honda lock

Honda Vehicles:

"Key will not turn." The Honda key looks like a popsicle stick. This manufacturer has their own set of problems. In most cases we can remove, repair and reinstall the problem lock.

broken keys

Plastic head of key broken:

We have a large selection of shell keys. They are key blanks that do not have transponders embedded into the heads. They have a removable portion that we can reinstall your chip into the head. We duplicate your key and reinstall the chip into the new key. A much more affordable solution.

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Commerical key cabinets Commercial

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.

Assorted commercial hardware Handicap door opener Commercial mailbox Alarmed exit device

  • 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)

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Various SafesSafes

Secure your valuables today! Granite Lock offers a variety of residential and commercial safes, including burglary and fire safes, data safes, gun safes, pistol vaults, college dorm safes, depository safes and floor safes. Most safes are readily available and installed by us.

Granite Lock also provides combination changes and maintenance. We provide opening and repairing of most types of safes. We deliver what we sell in most cases (weight restrictive). We have an electric powered hand truck and a truck mounted lift to facilitate the delivery and installation of safes.

Gardall Safe Corporation     American Security Products (AMSEC)

Phone:  617-472-2177

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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