From Silver Spring and Bethesda to Rockville and Gaithersburg, Locksmith Guarantee provides reliable residential, commercial, automotive, and safe services across Montgomery County. Our trained technicians arrive in equipped service vans, explain options, and give clear pricing before work begins. We operate Sunday through Friday, 8 AM–11 PM (Saturday closed). Whether you’re consolidating keys after a move, upgrading office access control, or replacing a lost fob without a tow, we’re ready to help.
Residential Locksmith Services
- Re-keying & keyed-alike convenience
- Grade-1 deadbolts
- Smart locks & keypads
- Door/hinge/strike adjustments
- Mailbox & gate locks
- Safe opening & combo changes.
Commercial Locksmith Services
- Access control & audit-friendly keypads
- Master-key systems
- Restricted keyways
- Exit devices/closers/storefront service
- File/cabinet locks
- Scheduled maintenance.
Automotive Locksmith Services
- Cut & program transponder/remote/proximity keys
- Ignition diagnosis & cylinder repair/replacement
- Broken key extraction
- Motorcycle/RV keys (availability varies).
Emergency During Open Hours
On-call Sun–Fri, 8 AM–11 PM with ETA and quote before dispatch. Schedule non-priority Saturday work in advance.
Committed!
Cities & Areas We Cover in Montgomery County
Silver Spring, Wheaton, Bethesda, Chevy Chase, Rockville, Gaithersburg, Germantown, Takoma Park, Kensington, Aspen Hill, and nearby areas.
Serving Montgomery County’s Diverse Communities
Montgomery County is Maryland’s most populous county and one of the most economically diverse in the mid-Atlantic region — stretching from the dense, transit-connected neighborhoods of Silver Spring and Takoma Park on the DC border all the way to the suburban and semi-rural communities of Poolesville and Damascus in the north. That geographic and demographic range creates a wide variety of security needs, and Locksmith Guarantee is equipped to meet all of them. Our Maryland-based team serves the entire county with the same professional standards, transparent pricing, and reliable scheduling at every address.
Montgomery County’s major corridors — Georgia Avenue (MD-97), Rockville Pike (MD-355), I-270, and the ICC (MD-200) — are the arteries our technicians travel daily. We schedule appointments with realistic transit times so that whether you’re in a Bethesda high-rise, a Gaithersburg townhouse, or a Germantown commercial property, our technician arrives prepared and on time.
Inner-County & Metro-Adjacent Neighborhoods
Silver Spring, Takoma Park, Wheaton, and Chevy Chase sit close to the DC line and include a mix of older rowhouses, mid-century single-family homes, and newer apartment developments. Many properties in these areas have aging door hardware that benefits from professional inspection and upgrade. We handle everything from worn deadbolts to smart lock installations in these high-density neighborhoods.
Rockville Pike & I-270 Business Corridor
Rockville and Gaithersburg host one of Maryland’s densest concentrations of office parks, retail centers, and medical facilities — many of them along the MD-355 and I-270 corridors. Commercial properties in these areas require access control systems, master key hierarchies, and security solutions that integrate cleanly into busy professional environments. We work around your business hours and minimize downtime on every commercial job.
Large Renter & Condo Population
Montgomery County’s urban core — particularly Silver Spring, Bethesda, and Rockville — has a significant renter and condominium population. Tenants moving between units, condo associations managing common-area access, and property managers maintaining multiple buildings all rely on professional rekeying and lock services. We work with individual renters and larger property management operations alike, and can coordinate building-wide master key systems efficiently.
Automotive Coverage Across the County
Montgomery County’s road network — I-270, I-495, Georgia Avenue, and Veirs Mill Road — sees heavy daily commuter traffic, and vehicle lockouts happen regularly to both residents and people passing through. Our mobile automotive team responds throughout the county, handling car lockouts, key replacement and programming, ignition diagnosis, and broken key extraction at your location — no tow required for most situations.
Additional Services Available Throughout Montgomery County
Beyond residential, commercial, and automotive work, Locksmith Guarantee handles specialty requests across Montgomery County. Safe opening and combination resets are available for homeowners or businesses with inherited or forgotten-combination safes. Mailbox and gate lock service covers the outdoor access points that often go overlooked. For HOA communities and multi-building residential properties — common throughout Germantown and Gaithersburg — we design and install master key systems that give property managers clean, hierarchical access control across every entry point.
Montgomery County Cities & Communities We Serve
Our service area covers all of Montgomery County — from the DC border communities in the south to the more rural areas in the north. If you’re in Montgomery County, we serve you.
Primary Service Cities
Additional Areas We Reach
Why Montgomery County Chooses Locksmith Guarantee
Our residential services include:
Key Duplication and Replacement: Lost your house key? We can duplicate or replace your keys so you never have to worry about being locked out again.
Lock Installation and Repair: We install and repair a wide range of locks, including deadbolts, smart locks, and high-security systems. Whether you need a new lock or your current one needs a fix, we’re here to help.
Lockout Services: Locked out of your home? Our technicians can get you back inside without causing any damage to your locks or doors.
Frequently Ask Questions
Call to Schedule
Prefer online? Request a quote and we’ll confirm your appointment window.
5442 Stream Bank Ln, Greenbelt, MD 20770
(240) 931-0762
locksmithguarantee1@gmail.com