Medeco builds America’s benchmark high security locks, and we install, replace and repair the full line, from Maxum deadbolts to M4 cylinders and Medeco XT electronic hardware, across Maryland, Washington DC and Northern Virginia. King Locksmiths brings 25 years of licensed, insured and bonded experience to every Medeco opening.
Founded in 1968 in Salem, Virginia and now part of the ASSA ABLOY group, Medeco sits firmly in the high security tier. Its catalog spans Maxum deadbolts, mortise, rim and key-in-lever cylinders, interchangeable cores, and the Medeco XT electronic key system.
The technical signature is pins that lift and rotate: angled key cuts turn each pin to engage a sidebar, while UL 437 listed M4 cylinders add side pins and patented, restricted keyways that block unauthorized duplication. Our customers meet this hardware on storefronts, server rooms and institutional doors throughout the District of Columbia, plus high end residential entries.
Three issues dominate our Medeco service calls: older cylinders turning gritty as the rotating pin chambers collect debris, lost restricted keys that no hardware store can legally copy, and Medeco XT cylinders refusing keys after battery or programming faults.
We fix them by servicing and re-pinning cylinders, originating fresh restricted keys, and reprogramming or swapping XT electronics. Locked out entirely? Our mobile units respond 24/7.
From Maxum deadbolts to M4 cylinders and Medeco XT electronics, we install, repair, replace and rekey every Medeco lock, backed by 25 years of licensed local expertise, genuine parts and free estimates across the DMV.
Repair is the right call for gritty rotation, worn springs, loose set screws and XT module faults. Our locksmith inspects the cylinder, cam, tailpiece and latch alignment on arrival.
We stock genuine Medeco cylinders, pins and Maxum components. Repair wins while your keyway and key control remain current; once they are compromised, we say so honestly. Call (240) 345-1455 in Maryland or (202) 800-2622 across the rest of the DMV.
We recommend replacement when key control is compromised, a keyway patent has lapsed, or a model is discontinued. We match your existing bore, backset and door prep, so no new drilling.
Many customers upgrade builder-grade hardware to a Medeco Maxum, and where the restricted keyway allows we key new cylinders to your existing Medeco keys. Our in-house door expert handles frame fixes the same visit. Request your free estimate today.
We install and retrofit Maxum deadbolts, M4 cylinders and Medeco XT conversions on residential and commercial doors, checking door thickness, backset and existing hardware prep before any tool comes out.
Correct installation is what keeps a sidebar cylinder smooth and its warranty valid, so our own certified technicians handle every job, never subcontractors. The process is simple: assess, install, then test operation and security before we leave. Estimates are always free.
Anyone can bolt on a deadbolt. Preserving genuine Medeco key control takes brand specific training, legitimate parts channels, and 25 years of hands-on door expertise.
We install only genuine Medeco cylinders, deadbolts and parts, sourced through legitimate channels, so your Maxum or M4 hardware keeps its patent backed key control.
Our locksmiths understand rotating pin chambers, sidebar timing and restricted keyways, so every Medeco repair, rekey or origination preserves security you paid a premium for.
Our mobile units carry common Medeco cylinders, cams, tailpieces and Maxum components, letting most repairs, rekeys and swaps finish in one visit, not two.
High security cylinders punish misaligned doors. Our door specialist corrects frames, hinges and strike alignment during the same appointment, protecting your Medeco investment from wear.
A compromised Medeco lock defeats the reason you bought it. Call (240) 345-1455 now or request Medeco service online. We answer day and night.
Medeco 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 Medeco Locks questions customers ask us most.
(240) 345-1455
Usually we repair it: gritty rotating pin cylinders respond well to cleaning and re-pinning. If your restricted keys are lost or key control is compromised, we recommend rekeying or replacement instead.
We give a free on-site estimate, and the price depends on the model and cylinder grade you choose, with no hidden fees. Call (240) 345-1455.
Yes. Our mobile units cover both areas with same-day availability for replacements and upgrades. Call (202) 800-2622.
To an existing Medeco key on the same restricted keyway, yes. Medeco cylinders cannot accept ordinary residential keys, and we will tell you honestly which option fits your system.