Commercial Locksmith Services in Maryland, DC & Northern Virginia

King Locksmith and Doors installs, repairs, and rekeys commercial locks and door hardware across the DMV. We help businesses, government agencies, hospitals, and hotels keep every door secure, working, and up to code.
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About King Locksmiths

A commercial locksmith keeps your doors secure, working, and up to code. King Locksmith repairs and replaces locks, rekeys cylinders after staff turnover, and designs master key systems that control who opens which door. We install and service exit devices, door closers, electric strikes, and keyless access hardware. We work to ADA and NFPA 101 life safety rules, so people can exit fast in an emergency. From one storefront in Silver Spring to a government campus in DC, we match the right hardware to each opening.

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Built for the Way Your Facility Works

Every building has different needs. A hospital must lock medication rooms while keeping exits clear. A hotel needs fast rekeys and durable hardware that handles heavy daily traffic. A government office may need high-security cylinders with patented key control. We study how people move through your space, then plan locks and hardware that fit. You get one trusted partner for security, code compliance, and service across Maryland, DC, and Northern Virginia.

24 Hour Commercial Locksmith Services In Maryland

Each piece of door hardware does a different job, so it needs the right expert. Browse our services by hardware type to learn how we install, repair, and upgrade commercial locksets, exit devices, door closers, electric strikes, mortise locks, and access control hardware. Each guide explains common problems, code rules, and the best options for your building in the DMV.

Ready to Secure Every Door in Your Building?

Talk to a King Locksmith expert today. Get a free on-site estimate for commercial locks and door hardware anywhere in the DMV.

Frequently Asked Questions

Have questions about commercial locksmith services? Here are clear answers to what business owners, facility managers, and procurement teams across Maryland, DC, and Northern Virginia ask us most often. Call us if yours isn’t listed.
What does a commercial locksmith do?
A commercial locksmith secures business, government, and institutional buildings. The work includes lock repair and replacement, rekeying, master key systems, high-security cylinders, exit devices, door closers, and access control hardware. Commercial jobs use heavy-duty hardware, often ANSI/BHMA Grade 1, and must meet fire and accessibility codes.

Rekey when your locks still work well but keys are lost or staff have left. Rekeying changes the pins inside the cylinder, so old keys stop working. It costs less than new hardware. Replace locks when they are worn, damaged, not ADA compliant, or too weak for your security needs.

Yes. In Maryland, locksmith businesses must hold a state license, and every employee who does locksmith work must be registered with the state’s Locksmith Licensing Program. Virginia licenses locksmiths through the Department of Criminal Justice Services, which requires training and a background check. Always ask to see credentials before work begins.

Yes. ADA rules call for door hardware that works with one hand and no tight grip or twist, which is why lever handles and push bars are common. Life safety codes like NFPA 101 require egress doors to open from the inside without a key or special knowledge. We check each opening and upgrade hardware that falls short.

Want to learn more? Explore our guides on commercial locks, door hardware, and access control to plan smarter security upgrades for your business, agency, or facility in the DMV.