Need a Locksmith
in Maryland?
Locksmith services for your home, business, and vehicle.
Contact our team for assistance with your locksmith needs.
Our Locksmith Services
We provide professional locksmith services for homeowners, commercial properties, and vehicle owners throughout Greenbelt and Central Maryland.
Emergency Locksmith
Locked out of your house, business, or vehicle? Our mobile locksmith technicians respond with professional unlocking tools, broken key extraction equipment, and replacement lock cylinders to restore your access safely.
Residential Locksmith
Protect your home and family with deadbolt installation, house lock rekeying when moving into a new property, interior and exterior door lock repair, and keyless keypad deadbolts.
Commercial Locksmith
Keep your office, retail store, or facility secure with commercial-grade mortise locks, master key systems, ADA lever handles, panic exit push bars, door closers, and access control hardware.
Automotive Locksmith
Get back on the road efficiently with damage-free car door unlocking, on-site car key cutting, transponder chip and remote key fob programming, and ignition cylinder repair for domestic and foreign vehicles.
Our Work
Take a look at examples of our locksmith work and the lock installation, rekeying, and repair services we provide across Maryland.
Residential Deadbolt Rekeying
Exterior front door deadbolt rekeyed on-site for a homeowner with five new matching keys cut and tested through our lock rekeying service.
Schlage Keypad Deadbolt Installation
Installed a Schlage electronic keypad deadbolt on a residential entry door for convenient keyless home entry.
Commercial Exit Door Panic Bar
Heavy-duty rim panic push bar exit device installed and aligned on a commercial steel exit door.
Commercial Mortise Lever Installation
Commercial-grade mortise lock body and satin chrome lever handle installed on an office entry door.
Yale Touchscreen Lock on French Doors
Digital Yale touchscreen smart deadbolt fitted and calibrated on residential double entry doors.
On-Site Car Key & Fob Programming
Replacement Dodge vehicle remote key fob programmed on-site using mobile automotive diagnostic equipment.
Brands We Use
We work with locksmith products and hardware suited to the needs of our residential, commercial, and automotive customers.
Additional Lock Hardware Brands We Service: ASSA ABLOY • Sargent • Arrow Lock • Defiant • Weiser • Master Lock • RR Brink • View All Lock Brands →
Vehicle Key & Fob Replacement Brands: Ford • Chevrolet • Toyota • Honda • Nissan • Hyundai • Kia • Jeep • Dodge • BMW • Volkswagen • Lexus • Mazda • Audi • GMC • Cadillac • Acura • View All Vehicle Brands →
Local Mobile Locksmith Serving Central Maryland
Locksmith Guarantee MD provides mobile residential, commercial, and automotive locksmith services based in Greenbelt, Maryland. Instead of requiring you to visit a storefront or tow your vehicle to a dealership, our technicians travel directly to your location in equipped mobile workshops.
Whether you need to rekey the locks on a newly purchased house, upgrade to high-security locks, repair a commercial entrance door, or replace a lost car key, we focus on practical, durable workmanship and clear communication from start to finish.
What Our Customers Say
Read genuine customer reviews from Maryland homeowners, business owners, and drivers who have used our emergency lockout and locksmith services.
"My mom locked her keys in her car and was so upset about being stranded. I called Locksmith Guarantee and within a reasonable timeframe their technician Miles called. He arrived within 30 minutes, price was very reasonable, and he got the car unlocked within seconds. Definitely recommend!"
"Michael was VERY professional and honest. He informed me I didn't need a new keyfob, just needed my current keyfob reprogrammed and the price was great. efficient, great attitude. I definitely would use his services again if I ever need to."
"Miles did great. He arrived on time and got my car unlocked in less than 30 seconds. Professional, reliable, and reliable service. Couldn't have asked for a smoother experience when dealing with a stressful lockout."
Service Areas in Maryland
Based in Greenbelt, MD, our mobile locksmith units serve communities across Prince George's County, Montgomery County, Howard County, Anne Arundel County, Frederick County, and Baltimore.
Frequently Asked Questions
Common questions about our locksmith services, coverage areas, and how to schedule assistance.
What locksmith services do you provide?
We provide residential, commercial, and automotive locksmith services, including emergency lockout assistance, lock rekeying, deadbolt and keypad lock installation, lock repair, master key systems, panic exit bars, and car key replacement and programming.
Is it better to rekey a lock or replace it?
If your existing locks are in good working condition and you want old keys to stop working, such as after moving into a new home or changing tenants, lock rekeying is a cost-effective choice. We recommend full lock replacement if the hardware is worn out, damaged, or if you want to upgrade to a new deadbolt or electronic keypad lock.
Can you make a replacement car key if I lost the original?
Yes. With your vehicle identification number (VIN) and proof of ownership, our mobile automotive locksmiths provide on-site car key replacement, cut new key blades, and program transponder chips and remote key fobs for major vehicle makes at your location.
Are your locksmiths licensed and insured in Maryland?
Yes. Locksmith Guarantee MD is licensed under Maryland Locksmith License #507, bonded, and insured. We are also a BBB Accredited Business with an A+ rating.
How do I contact you or request locksmith service?
You can call us directly at (240) 931-0762 during our operating hours (Monday–Friday & Sunday: 8:00 AM – 11:00 PM; Saturday: Closed) or submit a request on our Contact Us or Get a Quote page.
Contact Locksmith Guarantee MD
Need a locksmith for your home, business, or vehicle? Call us directly to speak with our team or send us a message using the form.
Request a Locksmith Estimate
Fill out your details below, or call (240) 931-0762 for direct assistance.