Ernie's offers Locksmith Key Services such as Key Duplication & Key Cutting

Maryland’s Top Key Service Provider

Providing Residential, Commercial & Emergency Key Services

Ernie’s Lock Company, Inc. has been offering professional key services in Maryland since 1960. We are one of the oldest and most-trusted locksmiths in the Prince George’s County region, and we pride ourselves on going the extra mile to keep our customers safe and secure. Read on for more information about our residential, commercial and lockout services, or contact us directly for assistance.

MD Key Services

Ernie’s offers one of the best selections of custom key services in Maryland and beyond. We can provide:

And more. Our licensed technicians are fully qualified to perform work on both residential and commercial properties. Count on our team to solve the challenges that are affecting your business and putting your home at risk. We work on all advanced, modern keyed and keyless access control systems — no job is too big or too complex.

Working With Ernie’s

Ernie’s is committed to making repairs, upgrades and other custom key services easy. Often, we can put together a preliminary estimate over the phone using photos of the damage. For on-site service, our technicians will arrive as promised and work quickly to minimize disruption. All repairs and new installations are backed by a 90-day workmanship guarantee, in addition to the factory warranty on the product itself.

The Transparent Pricing Locksmith Professionals

We’ve built our reputation on excellent communication and transparent pricing. Unlike many other mobile key locksmiths, we quote you a full and fair price upfront, taking the time to explain what’s involved in every job, why it’s necessary and what it costs. That way, when you receive your final bill, there are no unpleasant surprises. If things change during the course of the repair, we’ll let you know immediately so you can review and approve the new costs.

Our Key Service Areas

Ernie’s offers custom key services in the following areas:

  • Residential and emergency key service: We ensure prompt, professional attention, so we offer residential and emergency services within Prince George’s County. We can provide on-site repairs, lockout assistance and car key replacements in Riverdale Park, Hyattsville and College Park — one call is all it takes. Get in touch today, and we’ll send a technician as quickly as possible.
  • Commercial key services: Commercial key installations and repairs are the core of our business, which is why we’ve expanded our service area beyond Prince George’s County to include Bowie, Towson and Crofton, MD, as well as parts of the DC Metro Area. We can provide comprehensive service for schools, government facilities, office buildings, retail centers and more.

For all other key services, call Ernie’s to speak with a representative directly.

Contact Us!

For All Your Locksmith Needs!

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Our Services

    Commercial & Residential

  • High Security & Restricted Keyways
  • Key Duplication
  • 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 – Saturday: 8 AM – 7 PM
  • 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!


Proudly serving Maryland and Washington, D.C
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