90 Years of Lock & Security Expertise — Cambridge Trusts Commonwealth
Family-owned since 1936, Commonwealth Lock Company is a nationally recognized wholesale distributor of locksmith supplies, door hardware, and safes. Visit our Cambridge showroom or order from anywhere in the U.S.
Core Expertise
From premium lock hardware to high-security safes — wholesale pricing and expert product knowledge since 1936.
Locksmith Supply Distribution
National wholesale distributor of lock cylinders, key blanks, locksmith tools, and professional-grade hardware from every major manufacturer.
lock_openDoor Hardware Sales
Commercial and residential door hardware including lever sets, deadbolts, closers, hinges, and exit devices from top brands.
Safe Sales & Consultation
Residential, commercial, and high-security safes for every application — from fire-rated home safes to jeweler-grade vaults. Expert guidance included.
Special Orders & Nationwide Shipping
Can't find what you need? We source specialty lock and hardware products from our extensive manufacturer network and ship anywhere in the U.S.
90
Years in Business
A+
BBB Rating
Cambridge's Longest-Running Lock & Hardware Supplier
Family-Owned Since 1936
Three generations of lock and hardware expertise. Commonwealth Lock is one of the oldest continuously operating locksmith suppliers in the country.
BBB A+ Accredited
Accredited by the Better Business Bureau since 1990 with an A+ rating — a testament to decades of trust and fair dealing.
National Wholesale Distribution
We ship locksmith supplies, door hardware, and safes to professionals and businesses across the entire United States.
A+ BBB Rating — Trusted Since 1936
Locksmiths and contractors across the country rely on Commonwealth Lock for quality products and dependable service.
"Been buying from Commonwealth Lock for over 20 years. They always have what I need in stock, and their product knowledge is unmatched. Best supplier in New England."
Professional Locksmith
Cambridge, MA
"Great selection of commercial hardware and very competitive wholesale pricing. Their staff helped me spec out an entire building rekey — saved me time and money."
Property Manager
Somerville, MA
"Commonwealth Lock is my go-to for specialty hardware. If they don't have it on the shelf, they'll source it fast. Family-run business that treats you right."
Security Contractor
Boston, MA
Book Your Free Estimate
Pick a time that works. We'll call you to discuss your project.
Or call us directly at 617-876-3301
Need lock hardware, safes, or expert advice?
Visit our Cambridge showroom on Mass Ave or call us for wholesale pricing and fast nationwide shipping.