BEST lock installation, replacement and repair across Maryland, Washington DC and Northern Virginia. BEST invented the small format interchangeable core that secures offices, campuses and government buildings nationwide. We service the full BEST line, from SFIC cores to Grade 1 locksets. Licensed, insured and bonded, we have kept BEST locks turning for 25 years.
Frank Best invented the interchangeable core, and the company he founded in 1925, now part of dormakaba, still defines commercial key control. Signature products include SFIC cores, 9K cylindrical levers, 45H mortise locks and Switch Tech smart cores.
The technical heart is the figure eight SFIC: one control key swaps cores in seconds, no disassembly. The 9K and 45H carry ANSI/BHMA Grade 1 ratings, which is why office buildings and campuses across the District of Columbia rely on them.
Three issues dominate our BEST locksmith service calls: keys that stick in worn SFIC cores, sagging or loose levers on high traffic 9K locksets, and lost control keys that freeze an entire master key system. We repin worn cores, rebuild lever chassis and restore key control on site. Locked out? Our mobile units respond 24/7.
King Locksmiths specializes in BEST locks and access solutions across Maryland, DC, and Northern Virginia, providing expert installation, repair, replacement, rekeying, and master key services for residential and commercial security needs.
Repair suits worn core pins, broken key extractions and tired lever springs. Our locksmith inspects the core, chassis and strike before recommending anything.
We stock genuine BEST cores, pins and lever parts, so most repairs finish same day. When a chassis is worn out, we say so and quote replacement instead. Call (240) 345-1455 in Maryland or (202) 800-2622 in Washington DC and NOVA.
We recommend replacement for chassis damage, discontinued models, or security audits that call for Grade 1 hardware. We match your existing bore, backset and door prep with no new drilling.
Many customers upgrade builder grade levers to BEST, and existing SFIC cores usually transfer into the new hardware, so every key keeps working. Our in house door expert corrects frames the same visit.
New installs and retrofits cover 9K and 7KC levers, 45H mortise locks, padlocks and Switch Tech smart cores. Before quoting we check door thickness, backset, fire ratings and any access control platform the cores must join.
Precise installation protects Grade 1 performance and warranty coverage, so our own certified technicians handle every job. The process: assess, install, then test operation and security before we leave. Estimates are always free.
Anyone can swap a lever. Maintaining a BEST master key system takes brand specific training, genuine cores and 25 years of hands on door expertise.
We source and install only genuine BEST cores, levers and mortise bodies, never clones or gray market parts, so your hardware keeps full warranty coverage.
Our locksmiths know BEST inside out, from pinning SFIC cores and CORMAX keyways to rebuilding 9K lever chassis, delivering work that respects this system's precision.
Our mobile units carry uncombinated BEST cores, pins, springs and levers, so most repairs, rekeys and core swaps finish in a single visit, not two.
Commercial doors punish misaligned hardware. Our own door specialist corrects frames, hinges and closers during the same appointment, protecting BEST cores and levers from wear.
One failing BEST core can lock down an entire building. Call (240) 345-1455 now or book BEST Lock service online. We answer day and night.
BEST is just one of the many lock manufacturers we service daily. Browse the other trusted brands our technicians install, repair and replace across Maryland, Washington DC and Northern Virginia.
Straight answers from our technicians to the BEST Locks brand questions customers ask us most.
(240) 345-1455
Usually repair: worn cores repin to spec in minutes. Cracked chassis or discontinued models mean replacement, and we explain why.
Free on site estimates. Pricing depends on model and grade, no hidden fees. Call (240) 345-1455.
Yes. Mobile units cover the District of Columbia and NOVA with same day availability. Call (202) 800-2622.
es, when your key matches the core keyway family: Standard, Premium or CORMAX. We repin cores on site.
