Master Lock builds the laminated padlocks, combination locks and lock boxes found on gates, lockers and job sites everywhere, and we install, replace and repair them across Maryland, Washington DC and Northern Virginia. King Locksmith and Doors Inc. brings 25 years in business to every call: licensed, insured, bonded.
Locksmith Harry Soref founded Master Lock in Wisconsin in 1921 and patented the laminated steel padlock in 1924, stacking plates like a bank vault door. Today, under Fortune Brands Innovations, it is still America’s best known padlock maker.
The technical signature runs from four pin M1 keyway cylinders and resettable combination dials to rekeyable six pin ProSeries commercial padlocks and Bluetooth smart models. Our customers meet them on storage units, gates, lockers, job boxes and realtor lock boxes.
Three calls dominate our Master Lock work: forgotten combinations on dial and resettable models, outdoor gate padlocks with corroded shackles or seized M1 cylinders, and Bluetooth models that stop responding when batteries or pairing fail. We recover combinations where the model allows, free seized mechanisms, cut off what cannot be saved, and reset smart models properly. Locked out? Our mobile units respond 24/7.
King Locksmiths specializes in Master Lock solutions throughout Maryland, providing dependable installation, repair, replacement, rekeying, and access services for homes, businesses, gates, cabinets, padlocks, and other essential security needs.
Repair fits when the body is sound: a ProSeries cylinder needing service, a jammed lock box, or a smart module fault. We inspect shackle, cylinder and internals on arrival.
We stock genuine cylinders and lock box parts. Honestly, when a basic laminated padlock fails, replacement usually beats repair, and we say so. Call (240) 345-1455 in Maryland or (202) 800-2622 in Washington DC and NOVA.
We recommend replacement after cut offs, lost keys, or discontinued combination models. We match shackle diameter and clearance to your existing hasp or gate hardware.
We also key new padlocks alike to keys you already carry where the keyway allows, upgrade worn dials to ProSeries, and our in house door expert fixes bent hasps and gates the same visit. Call us for a free replacement estimate
We install ProSeries systems keyed alike or master keyed, wall mount and portable lock boxes, hasps and Bluetooth padlocks. Before anything mounts, we check shackle clearance, hasp fit, mounting surface and, for smart models, your phone platform.
A tough padlock on a flimsy hasp protects nothing. Our own technicians handle every job, never subcontracted: assess, install, then test operation and security before leaving. Estimates are free.
Anyone can cut off a padlock. Recovering a combination, rekeying a ProSeries system or saving a keyed alike set takes a real Master Lock locksmith.
We stock and install genuine Master Lock products, from laminated steel padlocks to ProSeries cylinders, so every replacement keeps the full toughness this brand promises.
Our locksmiths handle M1 keyway cylinders, rekeyable ProSeries cores and Bluetooth smart models daily, delivering fast diagnosis and repairs that respect this hardware's factory tolerances.
Our mobile units carry Master Lock padlocks, portable lock boxes and ProSeries cylinders, so most swaps, rekeys and combination recoveries finish in a single visit.
Master padlocks guard gates and sheds, but hasps and doors matter too. Our own door specialist corrects frames, hinges and alignment in the same appointment.
A failing Master Lock leaves your gate, locker or lock box one jam from disaster. Call (240) 345-1455 now or request service online today.
Master Lock is 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 Master Lock brand questions customers ask us most.
(240) 345-1455
Usually yes: seized cylinders and jammed lock boxes respond to service, while cut shackles mean replacement.
Estimates are free and on site. Price depends on the model, from basic padlocks to ProSeries systems, with no hidden fees. Call (240) 345-1455.
Yes. Our mobile units cover the District of Columbia and NOVA with same day availability: (202) 800-2622.
Within one keyway, yes: M1 models match each other, and ProSeries rekeys offer the most flexibility. Combination models cannot.
