Get Trusted Mobile Locksmith Service for Your Car, Home & Business. Affordable Rates & Guaranteed Top-Quality Workmanship.
We provide professional locksmith services for homeowners, commercial properties, and vehicle owners throughout Greenbelt and Central Maryland.
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.
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.
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.
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.
Take a look at examples of our locksmith work and the lock installation, rekeying, and repair services we provide across Maryland.
Exterior front door deadbolt rekeyed on-site for a homeowner with five new matching keys cut and tested through our lock rekeying service.
Installed a Schlage electronic keypad deadbolt on a residential entry door for convenient keyless home entry.
Heavy-duty rim panic push bar exit device installed and aligned on a commercial steel exit door.
Commercial-grade mortise lock body and satin chrome lever handle installed on an office entry door.
Digital Yale touchscreen smart deadbolt fitted and calibrated on residential double entry doors.
Replacement Dodge vehicle remote key fob programmed on-site using mobile automotive diagnostic equipment.
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 →
Homeowners, property managers, and drivers across Greenbelt and Central Maryland rely on our mobile units for straightforward quotes and commercial-grade lock hardware.
Whether you need emergency lockout assistance or scheduled new lock installation, we review your door hardware or vehicle year on the phone and provide a clear estimate before dispatch.
Our licensed Maryland locksmiths use non-destructive entry techniques and carry a full warranty on residential lock services, smart lock upgrades, and commercial security hardware.
Each service van carries high-security lock cylinders, mortise locksets, laser key cutters, and OBD programmers for on-site car key replacement.
Whether you need priority car lockout assistance, house lockout entry, or commercial access control, our dispatch workflow keeps every step transparent.
Call (240) 931-0762 or request a quote online. Tell us your lock hardware brand or vehicle make and model for an upfront estimate.
Once you approve the estimate, we route our closest mobile locksmith unit in Greenbelt, Prince George's County, or Montgomery County with a live arrival window.
Our technician arrives in a fully equipped van to perform damage-free lock rekeying, deadbolt replacement, ignition repair, or on-site key cutting.
You test every new key, keyless entry code, and door latch alongside your technician before job sign-off, backed by our verified customer guarantee.
Because residential deadbolt locks, commercial panic bars, and encrypted automotive keys require different hardware and tooling, we provide tailored quotes over the phone before dispatch.
Standard pin-tumbler lock cylinders require different parts and labor than ANSI Grade 1 commercial mortise locks, Mul-T-Lock / Medeco restricted keyways, or electronic keypad locks.
Your vehicle's make and year determine whether you need a mechanical blade, a laser-cut sidewinder key, transponder key programming, or lost car key deprogramming.
Lock rekeying recalibrates your existing cylinder to work with a new key at a lower cost, while full lock replacement installs brand-new Schlage or Kwikset hardware.
Single-door house lockouts or safe openings are quoted individually, while multi-door commercial rekeying and master key charts are bundled into a project rate.
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 on-site, 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."
Dispatched from our Greenbelt headquarters along I-495, I-95, and Route 1, our mobile technicians provide residential, commercial, and automotive locksmith services across Prince George's County and Montgomery County.
Active Mobile DispatchExplore technical advice from our Maryland locksmith blog and security resource center on protecting your home, commercial facility, and vehicles.
Residential SecurityLearn how cylinder rekeying resets key access after moving into a new home or changing tenants without replacing your exterior door hardware.
Automotive KeysCompare mobile on-site laser key cutting and OBD immobilizer pairing against dealership towing and multi-day wait times.
Commercial AccessDiscover how master key hierarchies, mortise cylinders, and fire-rated exit devices help property managers secure offices and retail suites.
Have more questions? Visit our complete Maryland Locksmith FAQ page or call (240) 931-0762.
Our mobile units are stationed in Greenbelt and dispatch across Prince George's County, Silver Spring, Gaithersburg, and Montgomery County. We provide an accurate arrival window over the phone before dispatching your technician.
Yes. Locksmith Guarantee holds Maryland Locksmith License #507 and is fully bonded, insured, and BBB A+ Accredited for residential, commercial, and automotive locksmith work.
Yes. Our mobile automotive units provide on-site car key replacement and OBD transponder programming for major domestic and foreign vehicle brands without towing your car to a dealership.
If your existing deadbolts are in good mechanical condition, lock rekeying is the reliableest and most cost-effective way to revoke old keys. If you want upgraded security or keyless convenience, we also offer lock change services and smart lock installation.
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.
Fill out your details below, or call (240) 931-0762 for direct assistance.
