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

  • 4500 Queensbury Road Riverdale, Maryland 20737

  • 301-277-1126
  • ernieslockco@gmail.com

  • For Emergency Service Please Call 443-850-6831

Washington, D.C.’s Top Commercial Locksmith

Commercial locksmiths in the metro Washington, D.C. area may be easy to find, but the licensed locksmiths at Ernie’s Lock Company, Inc. are one of a kind. It’s why we’re D.C.’s favorite commercial locksmith! For more than 55 years we’ve served businesses throughout D.C. and Maryland, from corporate offices and apartment complexes to government buildings and public schools.

Commercial Lock Services for the D.C. Area

Unlike other commercial D.C. locksmiths, we’re transparent with our prices and offer free, accurate quotes. We’ll work with you over the phone or through text and email. Plus, we’ll review any photos you provide to give you an accurate quote for your security and access control needs. We’re also happy to travel and quote you on-site.

And if we find our estimate changes? We’ll tell you, because we believe in honesty. Plus, nobody likes sticker shock.

We offer a broad variety of commercial locksmith services in Washington, D.C., including:

Our D.C. locksmith services include a 90-day warranty because we’re committed to providing you with unmatched service and experience. We use some of the best brands in the industry, like Medeco, Von Duprin and Corbin Russwin, and materials include a factory label warranty.

Choose Ernie’s For All of Your Washington, D.C. Locksmith Services

Customers throughout the Capital Hill D.C. area have called Ernie’s locksmiths “very helpful,” while our Maryland family has commented, “The keys .. worked the first time and every time,” and “They know what the heck they’re doing.”

If you’re looking for licensed, honest and reliable locksmiths to meet your commercial building needs in the Washington, D.C. area, Ernie’s is the locksmith for you. Contact the leading locksmith for Washington, D.C. today to learn more or talk to us about what you need — we can help!

Contact Us!

For All Your Locksmith Needs!

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