Deadbolt Installation & Upgrade
If you live in a Brownstone on Pacific Street, a pre-war walk-up near Flatbush Avenue, or a newly converted condo in Greenpoint, the lock on your front door is the first and most critical layer of protection between your home and the rest of Brooklyn. A quality deadbolt installation is not a set-it-and-forget-it afterthought — it is a deliberate security decision that determines how well your door holds up against the specific threats that urban living brings. Brooklyn Atlantic 24 Hour Locksmith is a fully mobile, insured locksmith service based right here in the borough, and our trained technicians come directly to your door to assess, recommend, and install the right deadbolt for your specific door, frame, and lifestyle.
Open 24 hours, 7 days a week · Licensed, bonded & insured
“We handle everything from single-cylinder Grade 1 deadbolts to jimmy proof deadbolt installation on apartment doors, to full mortise lock assemblies on commercial storefronts along Atlantic Avenue or Fulton Street. Whether you are upgrading an outdated lock that came with a rental unit or hardening a freshly purchased home against forced entry, our team brings the tools, the hardware knowledge, and the hands-on experience to get the job done right — without unnecessary drilling, patching, or door damage where it can be avoided. Call 718-841-7602 any time, day or night — we answer 24/7.
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.
More about our work
Everything you need to know about how we help — at a glance.
Why Deadbolt Installation and Upgrade Matter More in Brooklyn Than You Might Think
Brooklyn's housing stock is famously diverse — cast-iron commercial fronts in DUMBO, century-old wood-frame doors in Bed-Stuy, hollow-core apartment doors throughout Crown Heights, and brand-new steel entries in new-construction towers in Williamsburg. That variety means there is no universal lock solution. A standard tubular deadbolt that works fine on a solid-core door in a newer building may offer almost no real resistance on an aging wood frame with a worn strike plate. Our trained technicians evaluate the full door assembly — the door material, the frame condition, the existing bore hole, and the hinge placement — before recommending a deadbolt grade and style that actually matches the threat environment of your specific block and building type.
Upgrading an existing deadbolt is just as important as installing a new one. Locks wear out, cylinders develop play, and older models lack the anti-pick, anti-drill, and anti-bump features that modern high-security deadbolts include as standard. If your lock is more than seven to ten years old, or if you recently moved into a unit where you do not know the key history, a deadbolt upgrade is one of the most straightforward security improvements you can make. We carry a curated selection of Schlage, Kwikset, and Medeco hardware on our service vehicles so most installations happen in a single visit — no waiting for a parts order.
Mortise Lock and Jimmy Proof Deadbolt Installation: The Right Hardware for the Right Door
Two lock types come up repeatedly in Brooklyn service calls, and each solves a different problem. The mortise lock is the workhorse of commercial and older residential security in New York. Unlike a standard cylindrical deadbolt that sits in a bored hole, a mortise lock requires a rectangular pocket to be cut into the door edge, housing the entire lock body inside the door itself. This makes it far more resistant to kick-in and wrench attacks. Our technicians handle mortise lock installation and replacement on everything from commercial storefronts to the original hardware slots found in pre-war apartment doors throughout Park Slope, Cobble Hill, and Carroll Gardens — neighborhoods where the original mortise cutouts are often already present and simply need updated cylinders or a new lock body.
The jimmy proof deadbolt is the other signature Brooklyn lock, and for good reason. Designed specifically for metal apartment doors and door frames that open outward or sit in tight frames, a jimmy proof deadbolt interlocks with a surface-mounted strike rather than projecting a bolt into the frame. Because the interlocking mechanism wraps around the door frame from the inside, it is extremely difficult to defeat with a pry bar or shim — a real advantage in a multi-unit building where hallway security is less controlled. Jimmy proof deadbolt installation requires precise alignment and the right plate thickness for your specific door and frame, which is why a professional fit matters. Our mobile team brings the gauges, templates, and hardware variety to match the fit correctly on the first visit.
Our Full-Spectrum Deadbolt and Door Lock Services Across Brooklyn
Brooklyn Atlantic 24 Hour Locksmith is not a single-specialty shop. Our trained, insured technicians handle the complete range of residential and commercial door security work that Brooklyn homes and businesses need. Services we provide include: single-cylinder deadbolt installation; double-cylinder deadbolt installation for glass-panel doors; jimmy proof deadbolt installation on apartment and rental unit doors; mortise lock installation, repair, and cylinder replacement; door knob lock replacement and upgrade; keypad and electronic deadbolt installation; smart lock setup and integration; high-security cylinder upgrades for existing deadbolt housings; Grade 1 and Grade 2 deadbolt installation per ANSI security ratings; strike plate reinforcement and replacement; door frame repair and reinforcement after forced entry; door viewer (peephole) installation; chain guard and door limiter installation; master re-key of existing deadbolts after a move or lost key; lock re-key for landlords between tenants; commercial storefront deadbolt installation; commercial mortise lock installation and servicing; panic bar and exit device installation for commercial doors; access control keypads for multi-unit buildings; sliding door pin lock and bar installation; garage side-door deadbolt installation; mailbox lock replacement; padlock hasp installation for storage areas; lock-out service with ownership verification and damage-free entry where possible; and emergency locksmith response 24 hours a day, 7 days a week anywhere in Brooklyn.
Every service call starts with a clear scope of work and an exact up-front price confirmed before any tools come out. The final quote depends on factors like the lock grade and brand selected, the current condition of the door and frame, the time of day or night, and our travel distance from the current service location — but there are no surprise charges added after the fact. If you need work done right now on a Flatbush two-family at midnight, the same trained technician who handles a weekday Prospect Heights installation will be at your door.
What Locksmith Service Costs in Brooklyn — and What Actually Drives the Price
Questions like 'How much does a locksmith cost in Brooklyn?' and 'How much do locksmiths charge on average?' come up constantly, and the honest answer is that price varies significantly based on real variables — not arbitrary markups. The type of lock matters most: a standard deadbolt installation on a pre-bored door costs less in parts and labor than a mortise lock installation that requires chiseling a new pocket or fitting a custom cylinder. The time of day is a real factor — emergency locksmith response at 3 a.m. in East New York involves different logistical costs than a scheduled afternoon appointment in Bay Ridge. Travel distance within the borough, the condition of the existing door prep, and whether any reinforcement hardware is needed all factor into the final number.
What we never do is quote one price on the phone and present a higher one at the door. Before any work begins, our technician walks you through exactly what is needed and confirms the total. Questions like 'How much should an emergency locksmith cost?' or 'How much does an emergency locksmith cost near me?' deserve a straight answer, and we give one — specific to your actual situation, not a bait-and-switch estimate. If you want to know what your particular job will run, the fastest path is a direct call to 718-841-7602. We answer 24/7, and we can often give you a strong price indication over the phone based on your lock type, door condition, and location before we even roll the truck.
Frequently asked questions
What is the difference between a jimmy proof deadbolt and a standard deadbolt, and which one does my Brooklyn apartment need?
A standard deadbolt throws a bolt horizontally into a strike plate mounted in the door frame. A jimmy proof deadbolt, by contrast, uses an interlocking rim mechanism that wraps around the door frame from the inside, making it extremely resistant to prying and shimming. For metal apartment doors — common in Brooklyn multi-unit buildings — and for doors that open outward or have narrow frames with little clearance for a standard strike, a jimmy proof deadbolt is usually the stronger choice. Our technician will inspect your specific door setup and recommend the configuration that provides the best protection for your entry.
Can you install a mortise lock on my pre-war Brooklyn apartment door?
Yes, and this is one of the most common requests we handle in neighborhoods like Park Slope, Carroll Gardens, Cobble Hill, and Crown Heights. Many older Brooklyn buildings already have mortise pockets routed into the door edge from the original hardware. In those cases, we can often fit a new, high-security mortise lock body and updated cylinder directly into the existing cutout with minimal door modification. If the pocket needs adjustment or a new pocket needs to be cut, our technicians handle that as well, working carefully to keep the door structurally sound. Mortise lock installation is one of our core specialties.
How much does deadbolt installation cost in Brooklyn?
The price depends on several real factors: the grade and brand of the deadbolt or mortise lock selected, whether the door is pre-bored or needs new prep work, the condition of the existing frame and strike plate, the time of day (emergency overnight calls involve different logistics than a scheduled appointment), and travel distance. We do not publish flat rates because those numbers often do not reflect what a job actually requires — and we refuse to quote low and charge high at the door. Instead, call us at 718-841-7602, describe your door and lock situation, and we will give you a clear, specific price before any work begins.
Do you handle deadbolt installation and door knob lock replacement for commercial properties in Brooklyn?
Absolutely. Commercial locksmith work is a significant part of what we do. We install and service deadbolts, mortise locks, door knob locks, panic bars, and access control hardware on storefronts, offices, warehouses, and multi-tenant commercial buildings throughout Brooklyn — from the retail corridors of Atlantic Avenue and Flatbush to industrial spaces in Sunset Park. Commercial doors often have different bore specifications, heavier-duty frame requirements, and code considerations (especially for exit devices) that our experienced technicians are well-equipped to handle.
Is your locksmith service actually available at 3 a.m. in Brooklyn, or is '24/7' just marketing language?
It is not marketing language — it is our actual operating model. Brooklyn Atlantic 24 Hour Locksmith runs mobile service around the clock, every day of the year. When you call 718-841-7602 at 3 a.m. because you are locked out, because a lock was damaged in a break-in attempt, or because you need an emergency deadbolt installation before you feel safe going to sleep, a real trained technician picks up and dispatches to your location. We cover all Brooklyn neighborhoods, and our insured mobile units carry the hardware most commonly needed for immediate installation so most emergency calls are resolved in a single visit.
Should I re-key or fully replace my deadbolt when I move into a new place in Brooklyn?
For most situations, a full deadbolt replacement is the stronger choice. Re-keying changes the cylinder pins so existing keys no longer work, but it leaves the original lock body, cylinder quality, and any existing wear in place. If the lock is old, a lower-security grade, or was subjected to prior tampering, replacing it entirely with a high-security Grade 1 deadbolt gives you a fresh start on both the key control and the physical security of the mechanism. That said, if the existing lock is a recent, high-quality deadbolt in good condition and the only concern is key control, re-keying is a practical and cost-effective option. Our technician can assess the lock on-site and give you an honest recommendation based on what is actually there — not what generates the larger ticket.
Locked out or need a lock fixed? We are on the way.
Open 24 hours, 7 days a week · Insured, background-checked technicians · Up-front pricing
718-841-7602