Door Knob & Deadbolt Installation
Brooklyn doors take a beating. From the brownstone walk-ups along Flatbush Avenue to the ground-floor apartments off Atlantic Avenue, the lock hardware on most residential and commercial doors in this borough works overtime — and when it fails, it fails at the worst possible moment. Broadway Locksmith and Automotive Corp is a 24/7 mobile locksmith serving Brooklyn, NY, which means our trained, insured technicians come directly to your door, whether you're in Park Slope, Canarsie, Bay Ridge, or anywhere in between. We specialize in door knob lock installation, deadbolt upgrades, and mortise lock service for homes, businesses, and multi-unit buildings across the borough.
Open 24 hours, 7 days a week · Licensed, bonded & insured
“Upgrading or replacing your entry hardware is one of the highest-return security investments a property owner can make. A properly installed door knob with lock and key, paired with a quality deadbolt or mortise lock, creates layered protection that dramatically raises the difficulty for any unauthorized entry attempt. Our team handles everything from a straightforward knob swap on a bedroom door to a full mortise lock overhaul on a commercial storefront — all performed on-site, with no need to remove your door or haul hardware to a shop. We confirm an exact up-front price before any work begins, so there are never any surprises on your invoice.
What we do
Available 24/7
Day, night, weekends and holidays — a real local locksmith answers and rolls a fully-stocked van.
Fast local response
Based in Brooklyn, we reach the Brooklyn area in well under an hour.
Insured & background-checked
Vetted technicians, up-front pricing, and no surprise add-ons when we arrive.
Damage-free entry
We pick and bypass locks the right way, so most lockouts are solved without drilling anything.
Door Knob Lock Installation and Deadbolt Upgrades That Brooklyn Homes Actually Need
Not every lock is right for every door, and this is especially true in Brooklyn's diverse housing stock. A vintage pre-war door in Crown Heights may require a mortise lock pocket that's already cut into the door stave, while a newer construction condo in Williamsburg might be perfectly suited to a high-security cylindrical deadbolt. Our skilled technicians assess your door thickness, frame condition, and strike plate before recommending hardware — because the best door knob with lock is one that fits your door correctly and resists the specific vulnerabilities of your entry point. We carry and install leading hardware including Schlage and Kwikset, and we can source grade-1 commercial-grade deadbolts for tenants and landlords who need code-compliant solutions.
When we talk about layered security, the combination of a lock door knob and a deadbolt is the baseline. But in Brooklyn, where ground-floor units face higher exposure and multi-family buildings often have shared vestibule doors, that baseline frequently isn't enough. A double lock door knob — one that requires a key from both sides — adds a meaningful extra barrier on interior-facing doors and glass-adjacent entries. We also install and configure smart lock door knob units and keypad lock door knob systems for landlords who need to manage access across multiple units without re-keying every time a tenant turns over. Every installation is performed damage-free where possible, preserving your door and frame finish in the process.
Mortise Lock Service — The Core of Commercial and Multi-Unit Security
A mortise lock is the gold standard for commercial and high-traffic residential doors, and understanding what a locksmith does in this context matters. Unlike a cylindrical knob lock that sits in a bored hole, a mortise lock is a complete mechanical assembly — bolt, latch, and sometimes lever — housed inside a pocket cut directly into the door edge. This design distributes load across the full door body rather than a single bore point, making it far more resistant to kick-in and forced-entry attempts. Broadway Locksmith installs, repairs, and replaces mortise lock hardware on commercial storefronts, office lobbies, multi-family building entrances, and heavy steel doors throughout Brooklyn.
Our experienced commercial locksmith team is familiar with the mortise lock configurations common in Brooklyn's older commercial corridors — the kind of cast-iron units you find in buildings along Fulton Street or Nostrand Avenue that date back 80 or 100 years. We can rebuild worn mortise lock cases, replace cylinders, rekey them to a master-key system, and upgrade the trim to modern lever or knob handles without altering the structural pocket in the door. For new commercial tenants building out a space, we provide full mortise lock installation from scratch, including frame reinforcement and strike pocket chiseling where needed. Call 718-928-6720 — we answer 24/7 and can dispatch a mobile technician to your Brooklyn location the same day.
Emergency Locksmith Response — What to Do When You're Locked Out in Brooklyn
Getting locked out of your home or business in Brooklyn is stressful, but the solution is rarely as dramatic as people expect. Before calling anyone, take a quick inventory: Is there a spare key with a neighbor, a super, or a family member nearby? Is there a secondary entrance — a back door, a building intercom, or a landlord contact — that could let you back in? If you live in a building managed by a super, that's always your first call. These steps aren't just practical; they're the safest path because they confirm ownership without any hardware interaction at all.
When those options are exhausted, that's exactly what an emergency locksmith is for. A common question we hear is: 'How much does an emergency locksmith cost near me?' The honest answer is that the final quote depends on several factors — the type of lock involved (a basic cylindrical knob lock costs less to service than a complex mortise lock assembly), the time of day, travel distance to your location within Brooklyn, and whether replacement parts are needed on the spot. What we never do is give you a vague estimate and then revise it at the door. Our technicians state the exact price before touching anything, and you decide whether to proceed. As a 24/7 mobile locksmith, we respond to emergency calls across Brooklyn at all hours — nights, weekends, and holidays included.
One important note on lock-picking and bypass questions: searches like 'how to pick a door knob lock' or 'how to pick a lock door knob' are common, and while the curiosity is understandable, attempting to pick your own lock without training almost always makes the situation worse — damaged pins, broken keyways, and stuck bolts are common outcomes. It also raises legitimate questions from neighbors or building staff if observed. The right move is always to call a qualified professional who can verify your identity and open the door cleanly and legally. Our technicians carry the proper tools to do this without damaging your hardware in the vast majority of cases.
Choosing the Right Door Knob with Lock for Every Door in Your Home or Business
Not every door in your property needs the same level of hardware. A door knob with lock for bedroom use, for example, is typically a privacy knob — it locks from the inside with a button or turn, and can be opened from the outside with a small emergency release tool. This is appropriate for bathrooms and bedrooms where you need privacy but not key-controlled access. Exterior doors, on the other hand, should always have a keyed door knob with lock and key, paired with a deadbolt that throws at least one inch into a reinforced strike plate. Our technicians will walk you through the right grade and function for each door in your space before any hardware is ordered or installed.
For property owners managing rental units in Brooklyn — a common situation in neighborhoods like Flatbush, Sunset Park, and East New York — smart lock door knob and keypad lock door knob options offer real operational advantages. Keypad systems eliminate the cost and logistics of re-keying between tenants, and smart lock platforms can log entry events and allow remote access management from your phone. We install, program, and troubleshoot these systems on-site. Whether you're equipping a single brownstone unit or re-securing an entire six-family building, Broadway Locksmith and Automotive Corp has the experience and mobile capability to handle the full scope of the job in a single visit. Reach us any time at 718-928-6720 — 24/7, no answering service, just our team.
Our Full Door Knob and Deadbolt Installation Services for Brooklyn Residents and Businesses
Broadway Locksmith and Automotive Corp provides a comprehensive range of hardware installation and security services. Our specific offerings include: residential door knob lock installation; deadbolt installation on exterior and interior doors; mortise lock installation for commercial and residential use; mortise lock repair and case rebuilding; mortise lock cylinder replacement and rekeying; master-key system design and installation; double lock door knob installation for glass-adjacent entries; smart lock door knob installation and programming; keypad lock door knob setup and pairing; lock rekeying after tenant turnover; high-security grade-1 deadbolt upgrades; strike plate reinforcement and replacement; door frame repair after forced entry; panic bar and exit device installation; access control system integration; mailbox lock replacement; gate lock installation and repair; padlock hasp installation on storage doors; intercom door release mechanism repair; multi-point locking system installation for French doors; bedroom and bathroom privacy knob installation; lock-out service for residential doors; lock-out service for commercial premises; key duplication and on-site cutting; door hardware consultation and security assessment.
Every service on that list is performed by our insured, mobile team — we come to you anywhere in Brooklyn, confirm your up-front price, and work to complete the job without damage to your existing door or frame. No job is too straightforward or too complex for our crew.
Frequently asked questions
What is the meaning of locksmith, and what does a locksmith actually do on a door knob or deadbolt job?+
A locksmith is a trained security technician who installs, repairs, replaces, and bypasses lock mechanisms on doors, vehicles, safes, and access control systems. On a typical door knob or deadbolt job, our technician assesses the existing hardware, removes the old lock, prepares the door if needed — including chiseling strike pockets or enlarging bore holes — installs the new hardware, tests it fully, and ensures the door closes and latches correctly before leaving. On a mortise lock job, the process is more involved and includes fitting the lock body inside the door edge, aligning the cylinder, and testing under load.
Who is the best locksmith in Brooklyn, NY for mortise lock work on older buildings?+
Broadway Locksmith and Automotive Corp is a Brooklyn-based, 24/7 mobile locksmith with experienced technicians who work regularly on the older residential and commercial building stock found throughout the borough — including the cast-iron mortise lock assemblies common in pre-war buildings on streets like Nostrand Avenue, Fulton Street, and in neighborhoods from Bed-Stuy to Borough Park. Our technicians understand legacy hardware formats and can rebuild, rekey, or replace mortise lock units without forcing a tear-out of the original door pocket. We're reachable at 718-928-6720 any time of day or night.
How much should an emergency locksmith cost, and what factors affect the price?+
There is no single flat number that applies to every emergency locksmith situation, because the final cost depends on several variables: the type of lock being serviced (a basic cylindrical door knob lock is faster to open than a multi-point mortise lock assembly), the time of day or night, your specific location within Brooklyn and the travel distance from our team, and whether any replacement parts — cylinders, bolts, strike plates — are needed to restore the door to full working order after the service. What we commit to is transparency: our technician gives you the exact price before any work begins, and you are never charged more than that confirmed amount.
How much does an emergency locksmith cost near me if I'm locked out late at night in Brooklyn?+
After-hours emergency calls, including late-night and early-morning lockouts anywhere in Brooklyn, are factored into our up-front quote — there are no hidden after-hours surcharges added to your bill after the job is done. The technician who responds will assess the lock type, confirm the work required, and state the exact price before touching the hardware. Factors like the complexity of your lock (a smart lock door knob that requires a factory reset is more involved than a simple keyed knob) and whether parts need to be replaced on-site will influence the total. Call 718-928-6720 to get a real estimate for your specific situation — we answer 24/7.
Is a door knob with lock enough security for an exterior door, or do I need a deadbolt too?+
A door knob with lock alone is generally not sufficient for exterior door security. The latch bolt on a standard door knob lock is spring-loaded, which means it can often be defeated with a credit card or shimming method — a vulnerability that deadbolts do not share. A properly installed deadbolt throws a solid bolt at least one inch into a reinforced strike plate, making kick-in and shimming attacks far more difficult. For Brooklyn exterior doors — especially ground-floor units and street-facing entries — we strongly recommend pairing a keyed door knob with lock and key with a grade-1 deadbolt and a reinforced strike plate as a minimum baseline. Our technicians can assess your current setup and recommend the right combination for your specific door and frame.
Can you install a smart lock door knob or keypad lock door knob on my existing door without replacing the whole door?+
In most cases, yes. Smart lock door knob and keypad lock door knob units are designed to fit standard door bore patterns, and our technicians can typically install them on existing doors without any major modification. The main factors that affect compatibility are the door thickness, the existing bore hole diameter, and whether the door has a multi-point locking system already in place. We assess all of this on-site before installing anything. For landlords managing multiple Brooklyn rental units, a keypad system eliminates the need to rekey between tenants and allows code management from a single app — a practical upgrade we install and fully program during a single visit.