Residential Locksmith Services in Maryland & DC

Facing Lock trouble at home? King Locksmith helps homeowners, renters, and landlords across Maryland, DC, and Northern Virginia. We rekey, repair, and install door locks, deadbolts, and smart locks. Our techs come to you with the right parts to fix it the first time.

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Home Locks That Work Every Time You Turn the Key

Your front door is the first line of defense for your home. When a lock sticks, a key snaps, or a latch won’t catch, your home is less safe. Our residential locksmiths repair, rekey, and replace locks on entry doors, patio doors, and interior doors. We install deadbolts, keypad locks, smart locks, and high-security cylinders. Just moved in or lost a key? We can rekey your locks so old keys stop working, often for less than the cost of new hardware.

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Rekey or Replace? We'll Give You a Straight Answer

Not every lock problem needs new hardware. If your locks work well, rekeying is a quick, low-cost way to lock out old keys. If your locks are worn, damaged, or low grade, replacing them is the smarter move. We check your doors, frames, and strike plates, then explain your options in plain terms. You get an honest quote before any work begins, so there are no surprises. Call or book online today.

Residential Locksmith Services by Hardware Type

Every door in your home uses different hardware. Pick the type you need to learn more. We service deadbolts, knob and lever locksets, keypad and smart locks, mortise locks, sliding patio door locks, and storm door hardware. Each page explains how the hardware works, common problems, and how our locksmiths repair, rekey, or install it in homes across the DMV.

Need a Locksmith at Home? We're Ready.

Get fast, honest lock service for your home in Maryland, DC, or Northern Virginia. Book a free estimate or call us now.

Frequently Asked Questions

Have questions about home locks? Here are clear answers to the things DMV homeowners ask us most. Don’t see your question? Call our team, and we’ll be glad to help you pick the right fix.
What does a residential locksmith do?
A residential locksmith works on the locks and door hardware in your home. That includes rekeying, lock repair, lock replacement, deadbolt installation, smart lock setup, key cutting, and lockout help. At King Locksmith and Doors Inc., we also adjust doors and strike plates so your locks latch smoothly every time.

If your current locks are in good shape, rekeying is usually the faster and cheaper choice. We change the pins inside the lock cylinder, so the old keys stop working. If the locks are old, damaged, or low grade, or you want an upgrade like a smart lock, replacing them makes more sense.

Yes, in most cases. If your locks share the same keyway, we can rekey them all to one key. If they use different brands or keyways, we may swap a few cylinders first. It’s a simple way to cut down the number of keys you carry.

Yes. We install and set up keypad, Wi-Fi, and Bluetooth smart locks on most home entry doors. We also make sure your door is aligned and the deadbolt moves freely. A smart lock that rubs or binds drains its batteries fast and may fail to lock.

Want to learn more before you call? Explore our guides on door hardware, locks, and home security upgrades. Each one helps you choose the right solution for your home and budget.