Apartment Locksmith & Home Security Experts

Your trusted apartment locksmith and home security team. We handle locks, access control, door repair, and safes for residential properties across Maryland, Washington DC, and Northern Virginia.

Trusted Locksmith for Apartments and Homes

King Locksmith and Doors protects homes, condos, and apartment communities across Maryland, Washington DC, and Northern Virginia. We work with homeowners, landlords, HOAs, and property managers who need doors that lock right every time. Our skilled technicians rekey units between tenants, build master key systems, install smart locks and access control, and repair or replace worn doors. One local team handles it all, so your residents stay safe and your building runs smoothly.
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Why Apartment and Home Security Starts at the Door

Many break-ins don’t need special tools. They start with a propped entry door, a lock that never got rekeyed, or a frame that’s too weak to hold a deadbolt. Old keys from past tenants, contractors, and staff add even more risk. We find these gaps and close them with the right hardware, so only the right people get in and nobody gets locked out.

Common Security Risks in Homes and Apartments

Old Keys After Move-Out

Former tenants, movers, and old roommates may still hold working keys. Rekeying every unit at turnover shuts that door for good.

Propped and Tailgated Entry Doors

Broken closers and weak latches leave lobby doors open. Strangers slip in behind residents, and your access system stops working.

Lost or Copied Master Keys

One lost master key can open dozens of units. Without key control, you can't tell who still has access today.

Worn Doors and Weak Frames

Warped doors, loose hinges, and soft wood frames let a single kick defeat a good deadbolt. Strong locks need strong doors.

Locksmith and Door Services for Homes and Apartments

From a single townhome to a 300-unit complex, King Locksmith and Doors brings the tools and know-how to secure every opening. We plan, install, and service the hardware your property depends on daily. Each job is built to last, installed to meet local codes, and backed by a local team that answers when you call.

Is Your Building Still Using Old Keys?

Every lock that was never rekeyed is an open invitation. Get a clear, no-pressure security quote for your home or apartment property.

Door Hardware Built for Residential Living

Lobby doors open hundreds of times a day, and home doors face weather, wear, and the odd forced-entry attempt. That’s why we install commercial-grade hardware matched to each opening. Our team picks parts that meet fire and ADA rules, fit your budget, and keep working for years. Here’s the hardware we trust most for residential properties across the DMV.

Grade 1 Deadbolts

Heavy-duty deadbolts with long throws and reinforced strike plates resist kicks and prying far better than builder-grade locks.

Heavy-Duty Door Closers

Adjustable closers pull lobby and unit doors fully shut and latched, cutting down on slams, drafts, and open gaps.

Electric Strikes and Maglocks

Pair with fobs or intercoms to release entry doors remotely, while still letting residents exit freely in emergencies.

High-Security Cylinders

Patented, pick-resistant cylinders with key control cards, so only you can approve new copies of building keys.

Why Choose King Locksmith And Doors

Homeowners and property managers across the DMV choose us for honest advice, clean installs, and fast service. Here’s what sets King Locksmith and Doors apart on every residential job.

Serving Maryland, DC, and Northern Virginia

We know the buildings in this region, from Baltimore row homes to DC condos and Arlington high-rises. Our technicians work these neighborhoods every day, so we reach you fast.

We also understand the fire and building codes that apply to residential doors here. That means your hardware is installed correctly the first time, without costly do-overs.

Built Around Your Property Schedule

We plan work around move-ins, move-outs, and resident hours. Need ten units rekeyed before Friday? We’ll set a schedule and stick to it. We show up on time and leave common areas clean.

You get clear pricing, written records of every key and code we issue, and one point of contact. That makes budgeting and audits much easier.

One Team for Locks, Doors, and Access

Many companies only change locks. We handle the whole opening: the door, frame, hinges, closer, lock, and access reader. Each part is chosen to fit the others.

That means fewer vendors to manage and no finger-pointing when something breaks. When the door and lock come from one team, they simply work better together.

Modern Access Without the Headaches

Lost keys and lockout calls eat up staff time. Our keyless and cloud-based systems let you grant, change, or remove access right from your phone.

Residents love the convenience, and you get a clear log of who entered and when. We set it up, train your team, and stay on call for support.

Clear Quotes and Lasting Results

We walk your property, explain what needs fixing, and give you a written quote before any work starts. You’ll know the price before we pick up a tool.

We would rather repair a good lock than sell you a new one you don’t need. That honesty is why homeowners and managers keep calling us back.

Ready to Secure Your Property?

From one front door to an entire apartment complex, our team is ready to help. Request your quote or call us today.

Other Residential Properties We Secure

Our residential security work goes well beyond houses and apartments. We also protect condos, townhome communities, student housing, senior living, and mixed-use buildings throughout Maryland, Washington DC, and Northern Virginia.

Secure Your Entrances Today

Frequently Asked Questions

Have questions about apartment or home security? Here are quick answers to what property managers, landlords, and homeowners ask us most. Still unsure? Give us a call.

(240) 345-1455

Should I rekey or replace locks between tenants?
In most cases, rekeying is the faster and lower-cost choice. We change the pins inside the lock so old keys stop working, while the hardware stays in place. Replace the lock instead if it is worn, damaged, or outdated, or if you’re upgrading to a smart lock or high-security cylinder.
A master key system gives each resident a key for their own unit, while managers and maintenance carry one key that opens many doors. It cuts down on bulky key rings and speeds up repairs. Buildings with more than a few units, shared storage, or mechanical rooms usually benefit from one.
Yes. We can retrofit existing entry doors with electric strikes, maglocks, keypads, or fob readers, often without replacing the door. First, we check the door, frame, and closer to make sure everything latches properly. Then we design a system that fits your building and budget.
Switch to a restricted or patented keyway. These keys can’t be cut at a hardware store or kiosk. Only an authorized dealer can make copies, and only with your written approval, so you always know how many keys exist.
Yes. We help homeowners across Maryland, Washington DC, and Northern Virginia with lock changes, smart locks, new entry doors, door repairs, and home safes. Whether it’s one house or a full community, call (240) 345-1455 or request a quote online to get started.