Maryland Locksmith Services in Greenbelt, MD — Residential, Commercial & Auto

Residential, commercial, automotive and safe services, with clear pricing and trained technicians.

Open 8 AM–11 PM Sun–Fri • Sat Closed

Key Takeaways

Professional Maryland Locksmith Service

Founded on a simple promise of professional locksmith service at a fair price, Locksmith Guarantee has grown into one of Maryland’s most trusted names in security. As a full-service Maryland locksmith, we handle every lock and key need for your home, office and vehicle under one roof.

At Locksmith Guarantee, our licensed and certified technicians bring 30+ years of combined experience to every job. Whether you need emergency lockout help, a security system upgrade, or scheduled key duplication, we use professional-grade tools to get it done right the first time. Proudly serving Baltimore, Towson, Columbia, and communities across Maryland — with transparent pricing and no surprise fees.

Locksmith Guarantee is Maryland’s trusted choice for residential, commercial, and automotive locksmith services — rated 4.9 stars across 594 reviews. Whether you’re locked out, need to rekey your locks, or require emergency lockout support, our BBB-accredited team is available Sunday through Friday, 8 AM to 11 PM, and ready to respond reliable anywhere in Maryland.

How Can We Assist You Today?

Commercial Locksmith

Emergency Locksmith

Home, office, and vehicle lockout support
Lock repair or replacement after break-ins
Lost or stolen key solutions
Emergency rekeying and access restoration

Residential Locksmith

Automotive Locksmith

Contact US

Why Do You Need Professional Locksmith Assistance?

Whether you’re dealing with a lockout, looking to upgrade your security or need key duplication, a professional locksmith ensures the job is done right the first time. DIY attempts often lead to damaged locks, voided warranties or compromised security — a certified technician with the proper tools protects your property and saves you money in the long run.

Your home’s security deserves more than a efficient fix. Our residential locksmith services cover everything from rekeying and lock installation to smart lock upgrades and emergency lockout assistance, with solutions tailored to every home and budget.

Our commercial locksmith services are built around your business needs, whether that means high-security lock installation, access control systems, master key setups or emergency lockout assistance. Every solution is tailored to fit your building, your team and your security requirements.

Our residential locksmith services cover everything homeowners need, from broken lock repair and broken key extraction to lock replacement, rekeying, smart lock installation and biometric systems. Serving Greenbelt, Baltimore, Towson, Columbia and surrounding Maryland communities.

Every technician arrives in a clearly marked vehicle, in uniform, and equipped to handle most jobs on the first visit, so you know exactly who is at your door.

I was locked out of my house late at night, and Locksmith Guarantee came to the rescue withwithin a reasonable timeframe! The locksmith was professional, friendly, and had me back inside in no time. I am very happy with their service. Highly recommend their services!

John D.

Locksmith Guarantee provided exceptional service when I needed my locks changed after a break-in attempt. They were efficient, and made me feel secure in my home again. Thank you for your expertise and peace of mind!

Sarah K.

I had lost my car keys and was in a panic, but Locksmith Guarantee came to my rescue! The locksmith arrived and made me a new key on site, and saved me from a major headache. Thank you for your excellent service!

Michael P.

Reliable Residential Locksmith Service

Our residential locksmith services cover everything homeowners need — from broken lock repair and broken key extraction to lock replacement, rekeying, smart lock installation and biometric systems. Serving Greenbelt, Baltimore, Towson, Columbia and surrounding Maryland communities.

Every technician arrives in a clearly marked vehicle, in uniform, and equipped to handle most jobs on the first visit — so you know exactly who’s at your door.

Our phone number:

(240) 931-0762

Looking for Quality Locksmith Service?

Our phone number:

(240) 931-0762

Commercial Locksmith Service

We offer a full range of commercial locksmith services across Baltimore, Towson, Columbia and surrounding Maryland areas — including business lockouts, rekeying, access control systems, push bar installation and master key systems. Our technicians work efficiently and discreetly, minimizing any disruption to your operations.

Our phone number:

(240) 931-0762

Looking for Quality Locksmith Service?

Our phone number:

(240) 931-0762

Automotive Locksmith Service

Our automotive locksmiths handle everything from car lockouts and car key replacement to ignition repair and key fob programming — covering most makes and models across Baltimore, Towson, Columbia and surrounding Maryland areas.

Whether you’re stranded in a parking lot or dealing with a broken ignition, our technicians arrive fully equipped to get you back on the road reliable, without the dealership wait or cost.

Our phone number:

(240) 931-0762

Looking for Quality Locksmith Service?

Our phone number:

(240) 931-0762

Emergency Locksmith Service

Being locked out of your house, car or business is stressful — our emergency locksmiths are ready to respond reliable and get you back inside safely.

We serve Baltimore, Towson, Columbia and surrounding areas with reliable emergency locksmith service available Sunday through Friday, 8 AM to 11 PM. No runaround, no hidden fees — just dependable help when you need it most.

Whether it’s a residential, automotive or commercial lockout, our technicians arrive equipped to resolve the situation on site — including damaged locks, broken keys and post-break-in repairs.

Our phone number:

(240) 931-0762

Trusted Locksmith

Call Now: (240) 931-0762

Why Choose Us?

Pay Us Only When The Job's Done

Commitment to Solutions

Fair
Prices!

Trained & Certified Technicians

Need Help Highest Quality Locksmith Service ?

Our phone number:

(240) 931-0762

Make Sure Your Lock Gets The Best Treatment!

We are continuing service since last 30 years.

Frequently Asked Questions

What residential locksmith services do you offer?

Locksmith Guarantee provides lock installation, repair, rekeying, key duplication, home lockout assistance, security system installation, and smart lock services.

What commercial locksmith services do you offer?

Locksmith Guarantee provides lock installation, repair, rekeying, key duplication, master key systems, access control systems, security system installation, and emergency lockout services for businesses.

What services do you offer for automotive locksmith needs?

Locksmith Guarantee offers a range of automotive locksmith services including car key replacement, key duplication, ignition repair, lockout assistance, and transponder key programming.

Are you available for emergency lockout services?

Yes, we offer emergency lockout services to help you regain access to your home at any time.

Do you rekey locks if I lose my keys?

Yes, we can rekey your existing locks to work with a new set of keys, ensuring your home’s security.

What types of locks can you install or repair?

We handle all types of locks, including deadbolts, mortise locks, smart locks, high-security locks, and more.

How much do your services typically cost?

Service costs vary depending on the specific needs and lock types. Please contact us for a detailed quote.

How can I contact Locksmith Guarantee for service?

You can reach us by phone, through our website, or via our mobile app to request service. Our team is ready to assist you with your residential, commercial, and automotive locksmith needs.