Maryland’s Go-To Commercial Locksmith

Ernie’s Lock Company, Inc. has been providing commercial locksmith services the Maryland area for over 55 years, which is why we’re Maryland’s go-to locksmith for companies large, and small! The Ernie’s Lock Company crew is willing to travel up to 30-miles from our Riverdale, MD storefront for a larger-scale commercial job. This allows to service companies in Baltimore, Gaithersburg, Ellicott City, Columbia, and more!

Our Commercial Maryland Locksmith Services

Ernie’s has the staff and the equipment to tackle a variety of commercial locksmith services across a wide range of industries. We’ve worked with public schools, colleges, and corporate offices throughout Maryland and D.C. to provide unmatched lock and security service. Our commercial locksmith services include, but aren’t limited to:

Our services have a 90-day workmanship warranty — plus, our materials include a factory label warranty. We also use brands with unmatched quality and durability, like Corbin Russwin.

Contact Ernie’s today for a free, accurate quote from one or our licensed locksmiths. We’re proud to serve the Prince County area, as well as Baltimore, Towson, Elliot City and Washington, D.C.

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For All Your Locksmith Needs!

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Our Services

    Commercial & Residential

  • High Security & Restricted Keyways
  • Key Duplication (in shop & on road)
  • Key Cutting
  • Custom Master Key Systems
  • Lock Rekeying
  • Lock Installation
  • Lock Repairs
  • Door Hardware Installation
  • Electrical Access
  • Keyless Entry
  • Safes & Vault Sales
  • Safes & Vault Unlocking Services
    Lockouts - *Within 10 Miles

  • Automotive Lockouts
  • Residential Lockouts
  • Commercial Lockouts

Store Hours

  • Monday – Friday 8 AM – 5 PM
  • Saturday – Scheduling Only
  • Sunday – CLOSED


Ernie's Lock Company, Inc. believes in full transparency when it comes to pricing! We always provide honest, competitive and up-front pricing to our customers - we don't like sticker shock. Call our licensed locksmiths today for pricing & custom quotes!


4500 Queensbury Road Riverdale, Maryland 20737
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