50+ Years of Excellence

Top Access Control & Security Integrators

We are one of the leading integrators of access control and security camera systems.

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Hours

8:00 AM – 4:30 PM
* After hours emergency service available

Licensed

Fully qualified and safety-compliant – We build with professionalism you can trust.

Quality Materials

We use trusted brands and durable materials suited for most conditions.

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About US

We Offer Residential & Commercial Security Services

Founded in 1969, Crest Lock Co. is a second-generation family-owned locksmith and alarm system company. Our highly trained team can lend an expert hand to help you find the best product for your security needs.

1000+ Projects
Licensed & Insured
Experienced Team

What We Do

Efficient And Reliable Security Services

Residential

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Commercial

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Auto

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Our vision

Built to Protect. Designed to Last

Whether you need us to install a new system, get a spare key, or even need a hand getting back into your safe, we’re at your service. We’ve proudly kept countless Baltimore homes safe over the years, and we’d love to do the same for you.

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Let’s Secure What Matters Most.

Whether it’s a new property, a system upgrade, or just an idea — we’re here to bring safety and peace of mind to life. Let’s talk and explore how Crestlock can protect what you value.

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Testimonials

What Our Clients Say

Residential Security

CrestLock turned our dream home into reality. The attention to detail and craftsmanship were truly outstanding.

Customer 1
Martin Roberts
Commercial Project

Professional, punctual, and reliable — CrestLock delivered our office space on time, in budget and beyond expectations.

Customer 2
Emily Blunt
Auto Services

From the first consultation to the final handover, CrestLock made the process smooth and stress-free and & on-time.

Customer 3
Sarah Johnson
Proven & Trusted

Backed by Trust, Built on Security

At Crestlock, security isn’t just a service — it’s a promise. From new installations to system upgrades, clients rely on us for reliable protection and responsive support. With 24/7 emergency service, we’re always here when it matters most — because your safety can’t wait.

1000+

Satisfied Clients

Over 1000 projects built with trust and excellence.

50 +

Years in business

Structural coverage & quality you can count on.

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Long-Term Reliability
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Why CrestLock

What Sets Us Apart

We’re more than just a security provider — we’re your partner in protection.
From advanced access control to expert installation, we deliver precision, reliability, and peace of mind.

Local Expertise

We tailor every solution to meet Baltimore’s needs — and yours.

Pro Team

Skilled, certified techs and project managers committed to quality.

Smart Designs

Modern layouts and features built for comfort, function, and flow.

Client Focus

Responsive service and communication — your satisfaction is our priority.

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